:root{--bg:#f5f5f7;--bg-elevated:#ffffff;--bg-tinted:#eef0f4;--bg-glass:rgba(255, 255, 255, 0.72);--mist:#eef2fa;--mist-glow:rgba(0, 113, 227, 0.05);--mist-glow-0:rgba(0, 113, 227, 0);--text:#1d1d1f;--text-2:#6e6e73;--text-3:#86868b;--border:rgba(0, 0, 0, 0.07);--border-strong:rgba(0, 0, 0, 0.12);--blue:#0071e3;--blue-deep:#0066cc;--shadow-sm:0 0.5px 1.5px rgba(0, 0, 0, 0.03), 0 2px 6px rgba(0, 0, 0, 0.035), 0 8px 20px rgba(0, 0, 0, 0.03);--shadow-md:0 1px 3px rgba(0, 0, 0, 0.04), 0 6px 16px rgba(0, 0, 0, 0.05), 0 18px 40px rgba(0, 0, 0, 0.06);--shadow-lg:0 2px 6px rgba(0, 0, 0, 0.05), 0 12px 28px rgba(0, 0, 0, 0.07), 0 28px 60px rgba(0, 0, 0, 0.09);--radius-lg:22px;--radius-md:16px;--radius-sm:10px;--header-h:52px;--ease-out:cubic-bezier(0.25, 0.1, 0.25, 1);--ease-spring:cubic-bezier(0.16, 1, 0.3, 1);--ease-in-out:cubic-bezier(0.4, 0, 0.2, 1);--grad-1:linear-gradient(135deg, #0071e3, #42a5f5);--grad-2:linear-gradient(135deg, #af52de, #d970f7);--grad-3:linear-gradient(135deg, #ff9500, #ffb340);--grad-4:linear-gradient(135deg, #ff2d55, #ff6482);--grad-5:linear-gradient(135deg, #00c7be, #4dd8d0);--grad-6:linear-gradient(135deg, #30b35a, #5ed98a);--grad-7:linear-gradient(135deg, #5e5ce6, #8e8cf5);--grad-8:linear-gradient(135deg, #ff375f, #ff7b92);--font:-apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", "Segoe UI", Arial, sans-serif}[data-theme=dark]{--bg:#0a0a0c;--bg-elevated:#161618;--bg-tinted:#111114;--bg-glass:rgba(18, 18, 20, 0.72);--mist:#101318;--mist-glow:rgba(41, 151, 255, 0.075);--mist-glow-0:rgba(41, 151, 255, 0);--text:#f5f5f7;--text-2:#a1a1a6;--text-3:#77777d;--border:rgba(255, 255, 255, 0.08);--border-strong:rgba(255, 255, 255, 0.15);--blue:#2997ff;--blue-deep:#0077ed;--shadow-sm:0 0.5px 1.5px rgba(0, 0, 0, 0.5), 0 2px 8px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.3);--shadow-md:0 1px 3px rgba(0, 0, 0, 0.55), 0 6px 18px rgba(0, 0, 0, 0.45), 0 18px 44px rgba(0, 0, 0, 0.4);--shadow-lg:0 2px 6px rgba(0, 0, 0, 0.6), 0 12px 32px rgba(0, 0, 0, 0.5), 0 28px 64px rgba(0, 0, 0, 0.45)}.site-header,.section,.bento-feature,.cat-card,.latest-item,.site-footer,.nav-link,.brand-name,.icon-btn,body{transition:background-color .5s ease,border-color .5s ease,color .5s ease}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:0 0;border-radius:999px;border:3px solid transparent;background-clip:content-box}::-webkit-scrollbar-thumb:hover{background:rgba(0,0,0,.32);background-clip:content-box}html[data-theme=dark]::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.3);background-clip:content-box}@supports not selector(::-webkit-scrollbar){html{scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.26)transparent}html[data-theme=dark]{scrollbar-color:rgba(255,255,255,.28)transparent}}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none}img{max-width:100%}::selection{background:rgba(0,113,227,.22);color:var(--text)}[data-theme=dark] ::selection{background:rgba(41,151,255,.32);color:var(--text)}html.theme-transitioning,html.theme-transitioning *{transition:background-color .4s cubic-bezier(.4,0,.2,1),color .4s cubic-bezier(.4,0,.2,1),border-color .4s cubic-bezier(.4,0,.2,1),fill .4s cubic-bezier(.4,0,.2,1),stroke .4s cubic-bezier(.4,0,.2,1),box-shadow .4s cubic-bezier(.4,0,.2,1) !important}.container{max-width:1120px;margin:0 auto;padding:0 22px}.container-narrow{max-width:760px}.icon{flex-shrink:0;vertical-align:middle}.site-header{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-h);background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border-bottom:1px solid transparent;transition:border-color .3s}.site-header.scrolled{border-bottom-color:var(--border)}.header-inner{max-width:1120px;margin:0 auto;padding:0 22px;height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px;letter-spacing:-.01em}.brand-mark{display:inline-flex;width:30px;height:30px;align-items:center;justify-content:center;border-radius:50%;background:var(--bg-tinted);overflow:hidden;flex-shrink:0;box-shadow:0 0 0 1px var(--border)}.brand-mark img{width:100%;height:100%;object-fit:cover;display:block}.site-nav{display:flex;gap:4px}.nav-link{padding:6px 12px;font-size:13px;color:var(--text-2);border-radius:980px;transition:color .2s,background .2s}.nav-link:hover{color:var(--text)}.nav-link.active{color:var(--text);background:var(--bg-tinted)}.header-actions{display:flex;align-items:center;gap:6px}.icon-btn{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border:none;border-radius:50%;background:0 0;color:var(--text-2);cursor:pointer;transition:background .2s,color .2s}.icon-btn:hover{background:var(--bg-tinted);color:var(--text)}.icon-moon{display:none}[data-theme=dark] .icon-sun{display:none}[data-theme=dark] .icon-moon{display:block}.nav-toggle{display:none}.hamburger,.hamburger::before,.hamburger::after{display:block;width:16px;height:1.6px;background:currentColor;border-radius:2px;position:relative;transition:transform .3s}.hamburger::before,.hamburger::after{content:"";position:absolute;left:0}.hamburger::before{top:-5px}.hamburger::after{top:5px}.nav-toggle.open .hamburger{background:0 0}.nav-toggle.open .hamburger::before{transform:translateY(5px)rotate(45deg)}.nav-toggle.open .hamburger::after{transform:translateY(-5px)rotate(-45deg)}.hero{position:relative;padding:calc(var(--header-h) + 104px)0 88px;text-align:center;overflow:hidden}.hero-inner{position:relative;z-index:2}.hero-glow{position:absolute;width:640px;height:640px;border-radius:50%;filter:blur(120px);opacity:.35;pointer-events:none;animation:float 14s ease-in-out infinite alternate}[data-theme=dark] .hero-glow{opacity:.22}.hero-glow-1{top:-220px;left:50%;transform:translateX(-70%);background:radial-gradient(circle,#63b3ff,transparent 70%)}.hero-glow-2{top:-180px;left:50%;transform:translateX(-10%);background:radial-gradient(circle,#c58cff,transparent 70%);animation-delay:-7s}@keyframes float{from{transform:translateX(-70%)translateY(0)scale(1)}to{transform:translateX(-60%)translateY(40px)scale(1.08)}}.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;font-size:13px;font-weight:500;color:var(--text-2);background:var(--bg-elevated);border:1px solid var(--border);border-radius:980px;box-shadow:var(--shadow-sm);position:relative;z-index:2;margin-bottom:36px;transition:all .3s cubic-bezier(.25,.46,.45,.94);cursor:default}.hero-badge::before{content:'';position:absolute;inset:-2px;border-radius:980px;background:linear-gradient(135deg,#0071e3,#8e5cf5,#d970f7);opacity:0;z-index:-1;transition:opacity .4s ease,filter .4s ease;filter:blur(8px)}.hero-badge:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,113,227,.15);border-color:transparent}.hero-badge:hover::before{opacity:.6;filter:blur(6px)}.hero-title{margin:0 0 16px;font-size:clamp(40px,7vw,68px);font-weight:700;letter-spacing:-.03em;line-height:1.08;background:linear-gradient(180deg,var(--text) 20%,var(--text-3) 120%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;position:relative;z-index:2;transition:transform .4s cubic-bezier(.25,.46,.45,.94);cursor:default;animation:floatTitle 6s ease-in-out infinite}.hero-title:hover{transform:scale(1.02);animation-play-state:paused}@keyframes floatTitle{0%,100%{transform:translateY(0)rotate(0)}25%{transform:translateY(-6px)rotate(.3deg)}50%{transform:translateY(-2px)rotate(-.2deg)}75%{transform:translateY(-8px)rotate(.2deg)}}.hero-accent{background:linear-gradient(100deg,#0071e3 0%,#8e5cf5 35%,#d970f7 70%,#0071e3 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;position:relative;display:inline-block;transition:text-shadow .3s ease;animation:gradientFlow 5s linear infinite}.hero-title:hover .hero-accent{text-shadow:0 0 22px rgba(142,92,245,.45);animation-play-state:paused}@keyframes gradientFlow{0%{background-position:0}100%{background-position:200%}}.hero-accent::after{content:'';position:absolute;bottom:-2px;left:0;width:100%;height:3px;background:linear-gradient(90deg,#0071e3,#8e5cf5,#d970f7);border-radius:2px;opacity:0;transform:scaleX(.3);transition:all .6s cubic-bezier(.25,.46,.45,.94)}.hero-title:hover .hero-accent::after{opacity:.6;transform:scaleX(1)}.hero-sub{max-width:640px;margin:0 auto;font-size:clamp(16px,2.4vw,21px);line-height:1.55;color:var(--text-2);letter-spacing:-.01em;position:relative;z-index:2;transition:all .3s ease;cursor:default;animation:floatSub 7s ease-in-out infinite;animation-delay:-2s}.hero-sub:hover{color:var(--text);transform:translateY(-1px);animation-play-state:paused}@keyframes floatSub{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}.hero-actions{display:flex;justify-content:center;gap:14px;margin-top:32px;flex-wrap:wrap;position:relative;z-index:2}.hero-stats{display:flex;justify-content:center;gap:clamp(24px,6vw,64px);margin-top:56px;flex-wrap:wrap;position:relative;z-index:2}.stat{display:flex;flex-direction:column;gap:2px;transition:all .35s cubic-bezier(.25,.46,.45,.94);cursor:default;padding:12px 16px;border-radius:16px;position:relative}.stat::before{content:'';position:absolute;inset:0;border-radius:16px;background:var(--bg-elevated);opacity:0;transition:opacity .3s ease;z-index:-1}.stat:hover{transform:translateY(-4px)}.stat:hover::before{opacity:1;box-shadow:0 8px 24px rgba(0,0,0,6%)}.stat strong{font-size:clamp(24px,3.4vw,34px);font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,var(--text),var(--text-2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;transition:all .3s ease}.stat:hover strong{background:linear-gradient(135deg,#0071e3,#8e5cf5);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;transform:scale(1.08)}.stat span{font-size:13px;color:var(--text-3);transition:color .3s ease}.stat:hover span{color:var(--text-2)}.hero-decor{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:1}.decor-note{position:absolute;font-size:clamp(16px,2.5vw,24px);color:var(--text-3);opacity:0;animation:floatNote 8s ease-in-out infinite;font-weight:700}.decor-note.d1{left:8%;top:20%;animation-delay:0s;color:#0071e3;opacity:.15}.decor-note.d2{left:88%;top:15%;animation-delay:-2s;font-size:clamp(20px,3vw,28px);color:#8e5cf5;opacity:.12}.decor-note.d3{left:15%;top:65%;animation-delay:-4s;color:#d970f7;opacity:.1}.decor-note.d4{left:82%;top:55%;animation-delay:-1s;font-size:clamp(18px,2.8vw,26px);color:#63b3ff;opacity:.13}.decor-note.d5{left:50%;top:8%;animation-delay:-3s;color:#c58cff;opacity:.1}.decor-note.d6{left:28%;top:78%;animation-delay:-5s;font-size:clamp(14px,2vw,20px);color:#ff6b9d;opacity:.1}.decor-note.d7{left:70%;top:30%;animation-delay:-2.5s;font-size:clamp(22px,3.5vw,30px);color:#00d4aa;opacity:.08}@keyframes floatNote{0%,100%{transform:translateY(0)rotate(-5deg);opacity:.08}25%{transform:translateY(-15px)rotate(5deg);opacity:.18}50%{transform:translateY(-5px)rotate(-3deg);opacity:.12}75%{transform:translateY(-20px)rotate(8deg);opacity:.15}}.decor-dot{position:absolute;width:4px;height:4px;border-radius:50%;background:linear-gradient(135deg,#0071e3,#8e5cf5);opacity:0;animation:twinkle 4s ease-in-out infinite}[data-theme=dark] .decor-dot{background:linear-gradient(135deg,#63b3ff,#c58cff)}.decor-dot.s1{left:12%;top:30%;animation-delay:0s}.decor-dot.s2{left:78%;top:25%;animation-delay:-1s;width:6px;height:6px}.decor-dot.s3{left:25%;top:70%;animation-delay:-2s}.decor-dot.s4{left:70%;top:72%;animation-delay:-.5s;width:5px;height:5px}.decor-dot.s5{left:92%;top:45%;animation-delay:-3s;width:3px;height:3px}.decor-dot.s6{left:5%;top:50%;animation-delay:-1.5s;width:5px;height:5px}.decor-dot.s7{left:45%;top:12%;animation-delay:-2.5s;width:4px;height:4px;background:linear-gradient(135deg,#d970f7,#ff6b9d)}.decor-dot.s8{left:60%;top:82%;animation-delay:-3.5s;width:6px;height:6px;background:linear-gradient(135deg,#00d4aa,#63b3ff)}@keyframes twinkle{0%,100%{opacity:0;transform:scale(.8)}50%{opacity:.5;transform:scale(1.3)}}.decor-line{position:absolute;height:1px;background:linear-gradient(90deg,transparent,var(--text-3),transparent);opacity:.1;animation:lineGlow 6s ease-in-out infinite}.decor-line.l1{left:10%;top:40%;width:120px;transform:rotate(-15deg);animation-delay:0s}.decor-line.l2{right:10%;top:50%;width:100px;transform:rotate(20deg);animation-delay:-3s}@keyframes lineGlow{0%,100%{opacity:.05}50%{opacity:.15}}.decor-ring{position:absolute;border:1px solid var(--text-3);border-radius:50%;opacity:.06;animation:ringPulse 8s ease-in-out infinite}.decor-ring.r1{left:5%;top:15%;width:80px;height:80px;animation-delay:0s;border-color:#0071e3}.decor-ring.r2{right:8%;top:60%;width:60px;height:60px;animation-delay:-4s;border-color:#8e5cf5}@keyframes ringPulse{0%,100%{transform:scale(1);opacity:.04}50%{transform:scale(1.2);opacity:.08}}.hero-title:hover~.hero-glow-1{opacity:.5}.hero-title:hover~.hero-glow-2{opacity:.4}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;font-size:15px;font-weight:500;border-radius:980px;transition:transform .25s cubic-bezier(.16,1,.3,1),box-shadow .25s,background .25s;cursor:pointer;border:none}.btn-primary{background:linear-gradient(135deg,var(--blue),#4a9eff);color:#fff;box-shadow:0 6px 18px rgba(0,113,227,.32);position:relative;overflow:hidden}.btn-primary::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);transition:left .5s ease}.btn-primary:hover{background:linear-gradient(135deg,var(--blue-deep),var(--blue));transform:translateY(-2px)scale(1.03);box-shadow:0 12px 28px rgba(0,113,227,.4)}.btn-primary:hover::before{left:100%}.btn-primary:active{transform:translateY(0)scale(.97);transition-duration:.1s}.btn-ghost{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.btn-ghost::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,113,227,5%),rgba(142,92,245,5%));opacity:0;transition:opacity .3s ease}.btn-ghost:hover{transform:translateY(-2px)scale(1.03);box-shadow:0 12px 28px rgba(0,0,0,8%);border-color:var(--blue)}.btn-ghost:hover::after{opacity:1}.btn-ghost:active{transform:translateY(0)scale(.97);transition-duration:.1s}.section{padding:108px 0}.section-flush{padding-top:0}.section-tinted{background:radial-gradient(85% 55% at 50% 42%,var(--mist-glow),var(--mist-glow-0) 72%),linear-gradient(180deg,var(--bg) 0,var(--mist) 20%,var(--mist) 80%,var(--bg) 100%)}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}.eyebrow{display:block;font-size:14px;font-weight:600;letter-spacing:.02em;margin-bottom:6px;background:var(--grad-1);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.board-hero .eyebrow{font-size:15px}.section-title,.board-title{margin:0;font-size:clamp(28px,4.4vw,40px);font-weight:700;letter-spacing:-.025em;line-height:1.15}.more-link{display:inline-flex;align-items:center;gap:4px;font-size:14px;font-weight:500;color:var(--blue);white-space:nowrap}.more-link .icon{transition:transform .25s}.more-link:hover .icon{transform:translateX(3px)}.board-hero{position:relative;padding:calc(var(--header-h) + 64px)0 48px;overflow:hidden}.board-hero-sm{padding-bottom:32px}.board-sub{margin:14px 0 0;font-size:17px;color:var(--text-2);max-width:560px}.board-hero-sm .board-sub{font-size:15px}.grid{display:grid;gap:22px}.grid-3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.card{background:var(--bg-elevated);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .45s cubic-bezier(.16,1,.3,1),box-shadow .45s;display:flex;flex-direction:column}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.card:active{transform:translateY(-2px)scale(.985);transition-duration:.1s}.card-cover{position:relative;aspect-ratio:16/9.6;overflow:hidden;background:var(--bg-tinted)}.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.16,1,.3,1)}.card:hover .card-cover img{transform:scale(1.045)}.cover-fallback{display:flex;align-items:center;justify-content:center}.cover-pattern{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--text-3);background:radial-gradient(120% 140% at 20% 0%,rgba(0,113,227,.1),transparent 50%),radial-gradient(120% 140% at 100% 100%,rgba(175,82,222,.1),transparent 50%)}[data-theme=dark] .cover-pattern{background:radial-gradient(120% 140% at 20% 0%,rgba(41,151,255,.14),transparent 50%),radial-gradient(120% 140% at 100% 100%,rgba(175,82,222,.14),transparent 50%)}.card-play{position:absolute;right:12px;bottom:12px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3)}.card-cat{color:var(--blue);font-weight:500}.card-views{margin-left:auto;display:inline-flex;align-items:center;gap:4px;font-variant-numeric:tabular-nums}.card-views .icon{opacity:.75}.score-download .dl-count{font-size:11px;font-weight:500;opacity:.6;font-variant-numeric:tabular-nums;letter-spacing:.2px}.btn-score-download .dl-count{font-size:12px;font-weight:500;color:rgba(255,255,255,.78);font-variant-numeric:tabular-nums;letter-spacing:.2px}.collection-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}.collection-tab{display:inline-flex;align-items:center;gap:7px;padding:8px 18px;font-size:14px;font-weight:600;font-family:inherit;color:var(--text-2);background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:999px;cursor:pointer;transition:color .25s ease,background .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease}.collection-tab:hover{color:var(--text);transform:translateY(-1px);box-shadow:0 4px 14px rgba(0,0,0,8%)}.collection-tab.active{color:#fff;background:linear-gradient(135deg,var(--blue),#8e5cf5);border-color:transparent;box-shadow:0 6px 18px rgba(0,113,227,.32)}.collection-tab-count{font-size:12px;font-weight:500;opacity:.72;font-variant-numeric:tabular-nums}.card-title{margin:0;font-size:17px;font-weight:600;letter-spacing:-.015em;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.card-desc{margin:0;font-size:13.5px;line-height:1.5;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}.cat-grid-fixed{grid-template-columns:repeat(3,1fr)}@media(max-width:900px){.cat-grid-fixed{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.cat-grid-fixed{grid-template-columns:1fr}}.cat-card{position:relative;display:flex;flex-direction:column;gap:14px;padding:24px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform .45s cubic-bezier(.16,1,.3,1),box-shadow .45s,border-color .45s;overflow:hidden}.cat-card::before{content:"";position:absolute;top:-60px;right:-60px;width:160px;height:160px;border-radius:50%;background:var(--accent,var(--grad-1));opacity:.09;filter:blur(30px);transition:opacity .4s}.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent}.cat-card:hover::before{opacity:.2}.cat-card:active{transform:translateY(-1px)scale(.985);transition-duration:.1s}.cat-icon{width:46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:13px;background:var(--accent,var(--grad-1));color:#fff;box-shadow:0 4px 12px rgba(0,0,0,.12)}.cat-text{flex:1}.cat-title{margin:0 0 4px;font-size:17px;font-weight:600;letter-spacing:-.015em}.cat-desc{margin:0;font-size:13px;line-height:1.5;color:var(--text-2)}.cat-foot{display:flex;align-items:center;justify-content:space-between}.cat-count{font-size:12.5px;color:var(--text-3)}.cat-arrow{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;color:var(--text-3);transition:transform .3s,background .3s,color .3s}.cat-card:hover .cat-arrow{background:var(--accent,var(--grad-1));color:#fff;transform:translateX(2px)}.grad-g1{--accent:var(--grad-1)}.grad-g2{--accent:var(--grad-2)}.grad-g3{--accent:var(--grad-3)}.grad-g4{--accent:var(--grad-4)}.grad-g5{--accent:var(--grad-5)}.grad-g6{--accent:var(--grad-6)}.grad-g7{--accent:var(--grad-7)}.grad-g8{--accent:var(--grad-8)}.cat-card-big{grid-column:span 2}.cat-card-big .cat-title{font-size:20px}.cat-card-big .cat-desc{font-size:14px}.bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-auto-rows:minmax(150px,auto);gap:16px}.bento .cat-card{padding:20px;gap:12px}.bento-wide{grid-column:span 2}.bento-feature{grid-column:span 2;grid-row:span 2;position:relative;display:flex;flex-direction:column;justify-content:space-between;padding:28px;border-radius:var(--radius-lg);background:var(--accent,var(--grad-1));color:#fff;overflow:hidden;box-shadow:var(--shadow-md);transition:transform .45s cubic-bezier(.16,1,.3,1),box-shadow .45s}.bento-feature::after{content:"";position:absolute;top:-80px;right:-80px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.16);filter:blur(46px);pointer-events:none}.bento-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.bento-feature-top{position:relative;z-index:1}.bento-feature-icon{display:inline-flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:17px;background:rgba(255,255,255,.22);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.28);box-shadow:0 6px 18px rgba(0,0,0,.14)}.bento-feature-body{position:relative;z-index:1;display:flex;flex-direction:column;gap:8px}.bento-feature-title{margin:0;font-size:clamp(24px,3vw,32px);font-weight:700;letter-spacing:-.02em}.bento-feature-desc{margin:0;font-size:15px;line-height:1.5;color:rgba(255,255,255,.86)}.bento-feature-count{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13.5px;font-weight:500;color:rgba(255,255,255,.92)}.bento-feature-count .icon{transition:transform .25s}.bento-feature:hover .bento-feature-count .icon{transform:translateX(3px)}.bento-rooms{grid-column:span 2;grid-row:span 2;display:grid;grid-template-rows:repeat(2,minmax(0,1fr));gap:16px}.room-card{position:relative;display:flex;flex-direction:column;justify-content:space-between;gap:12px;padding:22px 26px;border-radius:var(--radius-lg);color:var(--text);overflow:hidden;transition:transform .45s cubic-bezier(.16,1,.3,1),filter .4s var(--ease-out);animation:ft-spin 11s linear infinite,ft-hue 18s linear infinite,ft-breathe 6.5s var(--ease-in-out)infinite}.room-card:hover{transform:translateY(-4px);filter:saturate(1.16)}.room-card:active{transform:translateY(0)scale(.99);transition-duration:.1s}.room-top{position:relative;z-index:1}.room-icon{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:14px;color:#fff;background:var(--grad-2);box-shadow:0 6px 16px rgba(0,0,0,.14)}.room-card-alt .room-icon{background:var(--grad-6)}.room-body{position:relative;z-index:1;display:flex;flex-direction:column;gap:5px}.room-title{margin:0;font-size:21px;font-weight:700;letter-spacing:-.02em}.room-desc{margin:0;font-size:13.5px;line-height:1.55;color:var(--text-2)}.page-article{padding:calc(var(--header-h) + 56px)0 88px}.page-header{margin-bottom:40px}.page-title{margin:0;font-size:clamp(30px,5vw,44px);font-weight:700;letter-spacing:-.025em;line-height:1.12}.page-lead{margin:14px 0 0;font-size:17px;line-height:1.6;color:var(--text-2)}.latest-list{background:var(--bg-elevated);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.latest-item{display:grid;grid-template-columns:52px 1fr auto auto auto;align-items:center;gap:16px;padding:16px 24px;border-bottom:1px solid var(--border);font-size:14.5px;transition:background .2s}.latest-item:last-child{border-bottom:none}.latest-item:hover{background:var(--bg-tinted)}.latest-section{font-size:11.5px;font-weight:600;padding:2px 8px;border-radius:6px;text-align:center;color:var(--blue);background:rgba(0,113,227,.1)}[data-theme=dark] .latest-section{background:rgba(41,151,255,.16)}.latest-title{font-weight:500;letter-spacing:-.01em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.latest-cat{font-size:12px;color:var(--text-3)}.latest-date{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}.latest-views,.archive-views{display:inline-flex;align-items:center;gap:4px;font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}.latest-views .icon,.archive-views .icon{opacity:.75}.progress-track{position:fixed;top:0;left:0;right:0;height:2px;z-index:110;background:0 0}.progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--blue),#a06bff);transition:width .08s linear}.article{padding:calc(var(--header-h) + 48px)0 72px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr)240px;gap:56px;align-items:start}.article-noaside{grid-template-columns:minmax(0,1fr)}.article-main{min-width:0;max-width:900px}.container-article{max-width:1240px}.article-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3);margin-bottom:24px;transition:color .2s}.article-back .icon{transform:rotate(180deg)}.article-back:hover{color:var(--blue)}.article-back--float-fallback{display:none}.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--text-3)}.article-cat{display:inline-block;padding:3px 10px;font-size:12.5px;font-weight:500;color:var(--blue);background:rgba(0,113,227,.1);border-radius:6px}[data-theme=dark] .article-cat{background:rgba(41,151,255,.16)}.article-title{margin:18px 0 0;font-size:clamp(28px,4.6vw,40px);font-weight:700;letter-spacing:-.025em;line-height:1.18}.article-lead{margin:16px 0 0;font-size:17px;line-height:1.6;color:var(--text-2)}.article-header{margin-bottom:40px}.article-header .article-meta{margin-bottom:24px}.article-aside{position:sticky;top:calc(var(--header-h) + 32px)}.toc-card{padding:18px;background:var(--bg-elevated);border-radius:var(--radius-md);border:1px solid var(--border);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;max-height:calc(100vh - var(--header-h) - 60px)}.toc-card h4{margin:0 0 10px;font-size:12.5px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.05em;flex-shrink:0}.toc-body{position:relative;flex:auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--border-strong)transparent;--toc-fade-top:0px;--toc-fade-btm:0px;-webkit-mask-image:linear-gradient(to bottom,transparent 0,#000 var(--toc-fade-top),#000 calc(100% - var(--toc-fade-btm)),transparent 100%);mask-image:linear-gradient(to bottom,transparent 0,#000 var(--toc-fade-top),#000 calc(100% - var(--toc-fade-btm)),transparent 100%)}.toc-card.can-scroll-top .toc-body{--toc-fade-top:22px}.toc-card.can-scroll-btm .toc-body{--toc-fade-btm:22px}.toc-body::-webkit-scrollbar{width:5px}.toc-body::-webkit-scrollbar-track{background:0 0}.toc-body::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:999px}.toc-body::-webkit-scrollbar-thumb:hover{background:var(--text-3)}#TableOfContents ul{list-style:none;margin:0;padding-left:0}#TableOfContents ul ul{padding-left:14px}#TableOfContents li{margin:2px 0}#TableOfContents a{display:block;font-size:13px;color:var(--text-2);line-height:1.5;padding:3px 0;border-left:2px solid transparent;padding-left:8px;transition:color .2s,border-color .2s}#TableOfContents a:hover{color:var(--text)}#TableOfContents a.active{color:var(--blue);border-left-color:var(--blue)}.prose{font-size:16.5px;line-height:1.78;letter-spacing:.005em}.prose>*:first-child{margin-top:0}.prose h1,.prose h2,.prose h3,.prose h4{font-weight:600;letter-spacing:-.02em;line-height:1.35;scroll-margin-top:80px}.prose h2{margin:2.8em 0 .75em;font-size:24px}.prose h3{margin:2.2em 0 .65em;font-size:19px;font-weight:600}.prose h4{margin:1.8em 0 .55em;font-size:17px;font-weight:600}.prose h5,.prose h6{margin:1.5em 0 .5em;font-size:15.5px;font-weight:600}.prose p{margin:1.15em 0}.prose a:not(.btn-score-download){color:var(--blue);background-image:linear-gradient(currentColor,currentColor);background-size:100% 1.5px;background-position:0 100%;background-repeat:no-repeat;padding-bottom:1px;transition:background-size .3s ease,color .2s}.prose a:not(.btn-score-download):hover{color:var(--blue-deep);background-size:100% 2.5px}.prose a:not(.btn-score-download)::after{content:"↗";font-size:.75em;margin-left:2px;opacity:.5;transition:opacity .2s,transform .2s;display:inline-block}.prose a:not(.btn-score-download):hover::after{opacity:1;transform:translate(1px,-1px)}.prose .linkcard{display:flex;align-items:center;gap:14px;padding:16px 20px;margin:1.4em 0;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s;text-decoration:none;color:var(--text)}.prose .linkcard:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.prose .linkcard::after{display:none}.prose .linkcard-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;color:#fff;flex-shrink:0}.prose .linkcard-body{flex:1;min-width:0}.prose .linkcard-title{font-size:15px;font-weight:600;letter-spacing:-.01em;margin-bottom:2px}.prose .linkcard-desc{font-size:13px;color:var(--text-2);line-height:1.45}.prose .linkcard-arrow{color:var(--text-3);font-size:18px;transition:transform .3s,color .2s;flex-shrink:0}.prose .linkcard:hover .linkcard-arrow{transform:translateX(4px);color:var(--blue)}.prose strong{font-weight:650}.prose img{border-radius:var(--radius-sm);display:block;margin:1.8em auto;box-shadow:var(--shadow-sm)}.prose blockquote{margin:1.6em 0;padding:18px 24px;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);color:var(--text-2);border-radius:var(--radius-md);border:.5px solid var(--border-strong);font-size:.95em;line-height:1.75;box-shadow:var(--shadow-sm);transition:box-shadow .35s var(--ease-out),border-color .35s var(--ease-out),transform .35s var(--ease-spring)}.prose blockquote:hover{border-color:rgba(0,113,227,.2);box-shadow:var(--shadow-md);transform:translateY(-1px)}.prose blockquote p{margin:.5em 0;color:var(--text)}.prose hr{border:none;height:1px;background:var(--border);margin:3em auto;width:30%;opacity:.7}.prose ul,.prose ol{padding-left:1.5em}.prose li{margin:.4em 0}.prose code{font-family:sf mono,ui-monospace,Menlo,Consolas,monospace;font-size:.84em;background:var(--bg-tinted);padding:2px 6px;border-radius:6px;border:1px solid var(--border);font-weight:500}.prose pre{position:relative;background:rgba(28,28,32,.72);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);color:#f5f5f7;border-radius:var(--radius-sm);padding:38px 20px 20px;overflow-x:auto;line-height:1.65;font-size:13.5px;border:.5px solid rgba(255,255,255,8%);box-shadow:var(--shadow-sm)}.prose pre::before{content:"";position:absolute;top:14px;left:16px;width:10px;height:10px;border-radius:50%;background:#ff5f56;box-shadow:18px 0 #ffbd2e,36px 0 #27c93f;opacity:.7}.prose pre code{background:0 0;border:none;padding:0;color:inherit;font-size:inherit;font-weight:400}.prose table{display:table;width:100%;border-collapse:collapse;margin:1.8em 0;font-size:14.5px}.prose table th,.prose table td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:center}.table-wrap{margin:1.8em 0;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border:.5px solid var(--border-strong);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow-x:auto;-webkit-overflow-scrolling:touch}.prose .table-wrap table{margin:0}.prose .table-wrap th,.prose .table-wrap td{padding:12px 14px;border-bottom:1px solid var(--border)}.prose .table-wrap th:not(:first-child),.prose .table-wrap td:not(:first-child){border-left:1px solid var(--border)}.prose .table-wrap thead th{background:var(--bg-tinted);font-weight:600;color:var(--text-2);font-size:13px}.prose .table-wrap tr:last-child td{border-bottom:none}.prose .table-wrap td.hl{background:rgba(0,113,227,.1)}[data-theme=dark] .prose .table-wrap td.hl{background:rgba(41,151,255,.14)}thead.thead-empty{display:none}.table-wrap--bare{background:0 0;border:none;box-shadow:none;border-radius:0;margin:0}.prose details{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 18px;margin:1.4em 0}.prose summary{cursor:pointer;font-weight:550}.prose summary:hover{color:var(--blue)}.prose iframe{max-width:100%}.prose table.chord-board,.prose table.mode-board{width:100%;table-layout:fixed;border-collapse:separate;border-spacing:5px;margin:1.6em 0}.prose .chord-board td,.prose .mode-board td{padding:13px 8px;text-align:center;vertical-align:middle;border:1px solid var(--border);border-radius:11px;font-size:16.5px;font-weight:650}.prose .chord-board small,.prose .mode-board small{display:block;margin-top:3px;font-size:11.5px;font-weight:500;font-style:italic;color:var(--text-3);letter-spacing:-.01em}.prose .cb-i{background:rgba(0,113,227,.1)}.prose .cb-iv{background:rgba(255,45,85,9%)}.prose .cb-v{background:rgba(255,149,0,.12)}.prose .cb-im{background:rgba(0,113,227,.1)}.prose .cb-ivm{background:rgba(255,45,85,9%)}.prose .cb-bvi{background:rgba(255,149,0,.12)}.prose .cb-vr{background:rgba(255,59,48,.1)}.prose .cb-g{background:rgba(52,199,89,.12)}.prose .cb-o{background:var(--bg-elevated)}[data-theme=dark] .prose .cb-i,[data-theme=dark] .prose .cb-im{background:rgba(41,151,255,.15)}[data-theme=dark] .prose .cb-iv,[data-theme=dark] .prose .cb-ivm{background:rgba(255,69,100,.13)}[data-theme=dark] .prose .cb-v,[data-theme=dark] .prose .cb-bvi{background:rgba(255,159,10,.15)}[data-theme=dark] .prose .cb-vr{background:rgba(255,69,100,.2)}[data-theme=dark] .prose .cb-g{background:rgba(48,209,88,.14)}.prose .chord-board td.cb-info,.prose .mode-board td.cb-info{background:var(--bg-tinted);text-align:left;font-size:13.5px;font-weight:400;line-height:1.75;padding:10px 16px}.prose .cb-info p{margin:3px 0}.prose .cb-n{color:var(--blue);font-weight:600}.prose .mc-a{background:rgba(255,204,0,.16)}.prose .mc-h{background:rgba(52,199,89,.13)}.prose .mc-d{background:rgba(175,82,222,.11)}.prose .mc-a.mc-h{background:linear-gradient(135deg,rgba(255,204,0,.16) 50%,rgba(52,199,89,.13) 50%)}.prose .mc-a.mc-d{background:linear-gradient(135deg,rgba(255,204,0,.16) 50%,rgba(175,82,222,.11) 50%)}.prose .mc-h.mc-d{background:linear-gradient(135deg,rgba(52,199,89,.13) 50%,rgba(175,82,222,.11) 50%)}.prose .mc-a.mc-h.mc-d{background:linear-gradient(135deg,rgba(255,204,0,.16) 0 33.4%,rgba(52,199,89,.13) 33.4% 66.7%,rgba(175,82,222,.11) 66.7% 100%)}[data-theme=dark] .prose .mc-a{background:rgba(255,214,10,.13)}[data-theme=dark] .prose .mc-h{background:rgba(48,209,88,.12)}[data-theme=dark] .prose .mc-d{background:rgba(191,90,242,.14)}[data-theme=dark] .prose .mc-a.mc-h{background:linear-gradient(135deg,rgba(255,214,10,.13) 50%,rgba(48,209,88,.12) 50%)}[data-theme=dark] .prose .mc-a.mc-d{background:linear-gradient(135deg,rgba(255,214,10,.13) 50%,rgba(191,90,242,.14) 50%)}[data-theme=dark] .prose .mc-h.mc-d{background:linear-gradient(135deg,rgba(48,209,88,.12) 50%,rgba(191,90,242,.14) 50%)}[data-theme=dark] .prose .mc-a.mc-h.mc-d{background:linear-gradient(135deg,rgba(255,214,10,.13) 0 33.4%,rgba(48,209,88,.12) 33.4% 66.7%,rgba(191,90,242,.14) 66.7% 100%)}.prose .mc-swatch{display:inline-block;padding:1px 8px;border-radius:6px}.prose .chord-cards{display:grid;gap:10px;margin:1.6em 0}.prose .chord-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);overflow:hidden;padding:0;margin:0;transition:border-color .25s}.prose .chord-card:hover{border-color:var(--border-strong)}.prose .chord-card summary{display:flex;align-items:center;gap:10px;padding:13px 16px;cursor:pointer;list-style:none;font-weight:600;font-size:15px;-webkit-tap-highlight-color:transparent}.prose .chord-card summary::-webkit-details-marker{display:none}.prose .chord-card summary:hover{color:var(--blue)}.prose .chord-card summary code{font-size:12.5px}.prose .chord-card .cc-arrow{margin-left:auto;flex-shrink:0;display:inline-flex;color:var(--text-3);transition:transform .3s cubic-bezier(.16,1,.3,1)}.prose .chord-card[open]>summary .cc-arrow{transform:rotate(90deg)}.prose .chord-card[open]>summary{border-bottom:1px solid var(--border)}.prose .chord-card .cc-body{padding:12px 16px 14px;font-size:14px;line-height:1.85}.prose .chord-card .cc-body p{margin:4px 0}.prose .cc-tip{display:block;margin-top:6px;font-size:12.5px;font-style:italic;color:var(--text-3)}.prose .scale-cards{display:grid;gap:12px;margin:1.6em 0}.prose .scale-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);padding:16px 20px;text-align:center}.prose .scale-card p{margin:4px 0}.prose .sc-title{font-size:15.5px;font-weight:650}.prose .sc-sub{font-size:12.5px;font-style:italic;color:var(--text-3)}.prose table.music-table{background:var(--bg-elevated);border-collapse:separate;border-spacing:0;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);overflow:hidden;font-size:14px;margin:1.2em 0}.prose .music-table th,.prose .music-table td{padding:10px 14px;text-align:left;vertical-align:middle;border-bottom:1px solid var(--border)}.prose .music-table thead{background:var(--bg-tinted)}.prose .music-table thead tr:first-child th{text-align:center;font-size:15px;font-weight:650;padding:13px}.prose .music-table thead tr:not(:first-child) th{font-size:12.5px;font-weight:600;color:var(--text-2)}.prose .music-table tbody tr:last-child td{border-bottom:none}.prose .music-table tbody tr:hover td{background:var(--bg-tinted)}.prose [data-level]{display:grid;grid-template-columns:repeat(5,1fr);gap:2px;width:86px;height:13px;border-radius:999px;overflow:hidden;background:var(--bg-tinted)}.prose [data-level] div{border-radius:999px}.prose [data-level="1"] div:nth-child(1){background:#ff6b6b}.prose [data-level="2"] div:nth-child(-n+2){background:#ffa94d}.prose [data-level="3"] div:nth-child(-n+3){background:#ffd93b}.prose [data-level="4"] div:nth-child(-n+4){background:#69db7c}.prose [data-level="5"] div:nth-child(-n+5){background:#4dabf7}.prose table.effect-table{background:var(--bg-elevated);border-collapse:separate;border-spacing:0;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);overflow:hidden;font-size:13.5px;min-width:680px;margin:1.2em 0}.prose .effect-table th,.prose .effect-table td{padding:9px 10px;text-align:center;vertical-align:middle;border-bottom:1px solid var(--border)}.prose .effect-table th{background:var(--bg-tinted);font-size:12.5px;font-weight:600;color:var(--text-2)}.prose .effect-table td:first-child{text-align:left;font-weight:600;background:var(--bg-tinted);white-space:nowrap}.prose .effect-table tr:last-child td{border-bottom:none}.prose .effect-table a{color:var(--blue)}.prose .amp-table-wrapper{margin:1.6em 0}.prose table.amp-table{background:var(--bg-elevated);border-collapse:separate;border-spacing:0;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);overflow:hidden;font-size:14px;min-width:620px}.prose .amp-table th,.prose .amp-table td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--border)}.prose .amp-table thead th{background:var(--bg-tinted);font-size:13px;font-weight:600;color:var(--text-2)}.prose .amp-table .amp-row-compact td{padding-top:10px;padding-bottom:10px}.prose .amp-table .model{font-weight:650}.prose .amp-table .badge{display:inline-block;font-size:12px;padding:3px 9px;border-radius:999px;background:var(--bg-tinted);color:var(--text-2);border:1px solid var(--border);white-space:nowrap}.prose .amp-table .index-box{width:32px;height:32px;border-radius:9px;background:var(--bg-tinted);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:var(--blue)}.prose .amp-table .small-note{font-size:13px;color:var(--text-2);margin:0 0 6px}.prose .amp-table td p{margin:6px 0 0;font-size:13.5px;line-height:1.65}.prose .amp-table tbody tr:last-child td{border-bottom:none}@media(max-width:920px){.prose .amp-table th:nth-child(5),.prose .amp-table td:nth-child(5){display:none}.prose table.amp-table{min-width:0}}.video-embed{position:relative;width:100%;padding-bottom:56.25%;margin:1.8em 0;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-md);background:#000}.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:64px}.article-nav-item{display:flex;flex-direction:row;align-items:center;gap:16px;padding:14px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s;min-width:0;text-decoration:none}.article-nav-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}.article-nav-item.next{flex-direction:row-reverse;text-align:right}.article-nav-thumb{flex-shrink:0;width:84px;height:62px;border-radius:10px;overflow:hidden;position:relative;background:var(--bg-tinted);box-shadow:0 2px 8px rgba(0,0,0,8%)}.article-nav-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .55s cubic-bezier(.16,1,.3,1)}.article-nav-item:hover .article-nav-thumb img{transform:scale(1.07)}.nav-thumb-grad{display:flex;align-items:center;justify-content:center;background:var(--accent,var(--grad-1));color:#fff}.article-nav-text{display:flex;flex-direction:column;gap:5px;min-width:0;padding:3px 4px}.article-nav-label{font-size:12px;color:var(--text-3)}.article-nav-title{font-size:14.5px;font-weight:550;line-height:1.45;color:var(--text);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.toc-mobile{display:none;margin:0 0 32px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden}.toc-mobile summary{display:flex;align-items:center;gap:9px;padding:13px 18px;font-size:13.5px;font-weight:550;color:var(--text);cursor:pointer;list-style:none;-webkit-tap-highlight-color:transparent}.toc-mobile summary::-webkit-details-marker{display:none}.toc-mobile summary .toc-mobile-arrow{margin-left:auto;color:var(--text-3);transition:transform .3s cubic-bezier(.16,1,.3,1)}.toc-mobile[open] summary .toc-mobile-arrow{transform:rotate(90deg)}.toc-mobile[open] summary{border-bottom:1px solid var(--border)}.toc-mobile-body{padding:8px 8px 14px 18px;max-height:62vh;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--border-strong)transparent}.toc-mobile-body #TableOfContents ul{list-style:none;margin:0;padding-left:0}.toc-mobile-body #TableOfContents ul ul{padding-left:14px}.toc-mobile-body #TableOfContents li{margin:1px 0}.toc-mobile-body #TableOfContents a{display:block;font-size:13.5px;color:var(--text-2);line-height:1.55;padding:5px 0 5px 10px;border-left:2px solid var(--border);transition:color .2s,border-color .2s}.toc-mobile-body #TableOfContents a:hover{color:var(--blue);border-color:var(--blue)}.links-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-bottom:48px}.link-card{display:flex;flex-direction:column;justify-content:space-between;gap:14px;padding:20px 22px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);transition:transform .35s cubic-bezier(.16,1,.3,1),box-shadow .35s;min-height:118px}.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}.link-card:active{transform:translateY(0)scale(.98);transition-duration:.1s}.link-desc{margin:0;font-size:13.5px;line-height:1.55;color:var(--text-2);flex:1}.link-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px}.link-title{font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--text)}.channels-article{padding:72px 0 96px}.channels-header{text-align:center;margin-bottom:48px}.channels-title{font-size:40px;font-weight:600;letter-spacing:-.02em;margin-bottom:14px;background:linear-gradient(135deg,var(--text) 0%,var(--text-2) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.channels-lead{font-size:16px;color:var(--text-2);max-width:720px;margin:0 auto 24px;line-height:1.7}.channels-meta{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}.channels-meta-item{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--text-2);background:var(--bg-tinted);padding:6px 14px;border-radius:999px;border:.5px solid var(--border)}.meta-icon{font-size:14px}.channel-filters{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:34px}.channel-filter{display:inline-flex;align-items:center;gap:7px;padding:9px 18px;font-size:13.5px;font-weight:500;font-family:inherit;border:.5px solid var(--border-strong);background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);color:var(--text-2);border-radius:999px;cursor:pointer;transition:all .3s var(--ease-out);box-shadow:var(--shadow-sm)}.channel-filter:hover{transform:translateY(-1px);color:var(--text);box-shadow:var(--shadow-md)}.channel-filter:active{transform:translateY(0)scale(.96);transition-duration:.1s}.channel-filter.active{background:var(--text);color:#fff;border-color:var(--text);box-shadow:0 2px 8px rgba(0,0,0,.12),0 8px 24px rgba(0,0,0,.1)}[data-theme=dark] .channel-filter.active{background:rgba(41,151,255,.2);color:#d5e9ff;border-color:rgba(41,151,255,.42);box-shadow:0 2px 10px rgba(0,0,0,.4),0 0 18px rgba(41,151,255,.16)}.filter-icon{font-size:14px;line-height:1}.filter-label{font-size:13.5px}.filter-count{font-size:11.5px;background:rgba(0,0,0,6%);color:var(--text-2);padding:1px 7px;border-radius:999px;font-weight:600;font-variant-numeric:tabular-nums}[data-theme=dark] .filter-count{background:rgba(255,255,255,9%);color:var(--text-2)}.channel-filter.active .filter-count{background:rgba(255,255,255,.18);color:rgba(255,255,255,.9)}[data-theme=dark] .channel-filter.active .filter-count{background:rgba(41,151,255,.3);color:#e2f0ff}.channel-sections{display:flex;flex-direction:column;gap:64px}.channel-section{transition:opacity .4s var(--ease-out)}.channel-section.hidden{display:none}.channel-section-head{display:flex;align-items:center;gap:14px;margin-bottom:24px}.channel-section-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;color:#fff;box-shadow:0 4px 14px rgba(0,0,0,.1);flex-shrink:0}.channel-section-info{flex:1}.channel-section-title{font-size:22px;font-weight:600;letter-spacing:-.015em;margin:0}.channel-section-count{font-size:13px;color:var(--text-3);margin:2px 0 0}.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.channel-card{display:flex;flex-direction:column;gap:12px;padding:20px;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border:.5px solid var(--border-strong);border-radius:var(--radius-md);text-decoration:none;color:inherit;transition:transform .4s var(--ease-spring),box-shadow .35s var(--ease-out),border-color .3s;position:relative;overflow:hidden}.channel-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--cat-grad,var(--grad-1));opacity:0;transition:opacity .3s}.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}.channel-card:hover::before{opacity:1}.channel-card:active{transform:translateY(0)scale(.98);transition-duration:.1s}@property --ft-ang{syntax: "<angle>";  inherits: true; initial-value: 0deg; }@property --ft-hue{syntax: "<number>"; inherits: true; initial-value: 212; }@property --ft-glow{syntax: "<number>"; inherits: true; initial-value: 0.13; }.channel-card-featured{--feat-a:rgba(255, 255, 255, 0.97);--feat-b:rgba(255, 255, 255, 0.9);--ft-ring-k:1;--ft-glow-k:1;--ft-tint-k:1.05;border:1px solid transparent;background:linear-gradient(140deg,hsl(calc(var(--ft-hue) - 15) 96% 62%/calc(var(--ft-glow) * var(--ft-tint-k))),hsl(calc(var(--ft-hue) + 115) 92% 60%/calc(var(--ft-glow) * .4 * var(--ft-tint-k))) 52%,transparent 78%)padding-box,linear-gradient(var(--feat-a),var(--feat-b))padding-box,conic-gradient(from var(--ft-ang),hsl(calc(var(--ft-hue) - 45) 96% 64%/calc(.9 * var(--ft-ring-k))),hsl(calc(var(--ft-hue) + 15) 94% 66%/calc(.8 * var(--ft-ring-k))),hsl(calc(var(--ft-hue) + 75) 92% 62%/calc(.8 * var(--ft-ring-k))),hsl(calc(var(--ft-hue) + 145) 92% 64%/calc(.8 * var(--ft-ring-k))),hsl(calc(var(--ft-hue) + 215) 94% 66%/calc(.8 * var(--ft-ring-k))),hsl(calc(var(--ft-hue) + 275) 96% 64%/calc(.85 * var(--ft-ring-k))),hsl(calc(var(--ft-hue) + 315) 96% 64%/calc(.9 * var(--ft-ring-k))))border-box;box-shadow:0 10px 34px hsl(calc(var(--ft-hue) + 35) 92% 60%/calc(var(--ft-glow) * var(--ft-glow-k))),0 0 0 5px hsl(calc(var(--ft-hue) + 35) 92% 62%/calc(var(--ft-glow) * .26 * var(--ft-glow-k)));-webkit-backdrop-filter:none;backdrop-filter:none;transition:transform .4s var(--ease-spring),filter .4s var(--ease-out),border-color .3s;animation:ft-spin 11s linear infinite,ft-hue 18s linear infinite,ft-breathe 6.5s var(--ease-in-out)infinite}.channel-card-featured::before{display:none}.channel-card-featured:hover{border-color:transparent;transform:translateY(-4px);filter:saturate(1.16)}@keyframes ft-spin{to{--ft-ang:360deg}}@keyframes ft-hue{to{--ft-hue:572}}@keyframes ft-breathe{0%,100%{--ft-glow:0.11}50%{--ft-glow:0.26}}.channel-card-badge{position:absolute;top:14px;right:14px;font-size:11px;font-weight:600;letter-spacing:.03em;line-height:1.5;color:var(--blue);background:rgba(10,132,255,9%);border:.5px solid rgba(10,132,255,.3);padding:2px 10px;border-radius:999px;z-index:1}[data-theme=dark] .channel-card-featured{--feat-a:rgba(30, 32, 42, 0.95);--feat-b:rgba(20, 21, 28, 0.93);--ft-ring-k:1.2;--ft-glow-k:2.1;--ft-tint-k:1.35}[data-theme=dark] .channel-card-badge{color:#8ec1ff;background:rgba(41,151,255,.18);border-color:rgba(120,180,255,.38)}[data-theme=dark] .channel-tag{background:rgba(255,255,255,7%);border-color:rgba(255,255,255,.1);color:var(--text-2)}[data-theme=dark] .channel-card-featured .channel-tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.16);color:#d7d7dc}@media(prefers-reduced-motion:reduce){.channel-card-featured{animation:none;--ft-glow:0.18}}.channel-card-top{display:flex;align-items:center;gap:12px}.channel-card-icon{width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:20px;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(12px);backdrop-filter:saturate(180%)blur(12px);box-shadow:inset 0 0 0 .5px var(--border-strong);flex-shrink:0}.channel-card-icon.icon-txt{font-size:12.5px;font-weight:800;letter-spacing:.04em;line-height:1}.channel-card-title{font-size:15.5px;font-weight:600;letter-spacing:-.01em;color:var(--text);line-height:1.35}.channel-card-desc{font-size:13px;line-height:1.6;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.channel-card-bottom{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px;padding-top:12px;border-top:.5px solid var(--border)}.channel-card-tags{display:flex;gap:5px;flex-wrap:wrap}.channel-tag{font-size:10.5px;padding:2px 8px;border-radius:999px;background:var(--bg-tinted);color:var(--text-3);font-weight:500;border:.5px solid var(--border)}.channel-card-domain{font-size:11px;color:var(--text-3);font-family:sf mono,Menlo,Monaco,Consolas,monospace;display:flex;align-items:center;gap:4px;flex-shrink:0;white-space:nowrap}.channel-card-views{margin-left:10px;display:inline-flex;align-items:center;gap:3px;font-variant-numeric:tabular-nums;color:var(--text-3)}.channel-card-views .icon{opacity:.75}.channels-content{margin-top:72px}@media(max-width:900px){.channel-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.channels-article{padding:48px 0 72px}.channels-title{font-size:30px}.channels-lead{font-size:14.5px}.channel-grid{grid-template-columns:1fr}.channel-sections{gap:44px}.channel-filters{gap:6px;margin-bottom:26px}.channel-section-head{margin-bottom:18px}.channel-filter{padding:7px 14px;font-size:12.5px}.channel-section-title{font-size:19px}.channel-section-icon{width:40px;height:40px;font-size:18px;border-radius:11px}}.archive-year{margin-bottom:44px}.archive-year-title{margin:0 0 18px;font-size:30px;font-weight:700;letter-spacing:-.02em;background:var(--grad-1);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.archive-list{background:var(--bg-elevated);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden}.archive-item{display:grid;grid-template-columns:44px 1fr auto auto;align-items:center;gap:16px;padding:13px 22px;border-bottom:1px solid var(--border);font-size:14.5px;transition:background .2s}.archive-item:last-child{border-bottom:none}.archive-item:hover{background:var(--bg-tinted)}.archive-item time{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}.archive-item-title{font-weight:500;letter-spacing:-.01em}.search-box{display:flex;align-items:center;gap:12px;padding:16px 22px;background:var(--bg-elevated);border:1px solid var(--border-strong);border-radius:980px;box-shadow:var(--shadow-md);color:var(--text-3);transition:border-color .2s,box-shadow .2s}.search-box:focus-within{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.12),var(--shadow-md)}.search-box input{flex:1;border:none;outline:none;background:0 0;font-family:inherit;font-size:17px;color:var(--text)}.search-box input::placeholder{color:var(--text-3)}.search-hint{margin-top:24px;text-align:center;font-size:14px;color:var(--text-3)}.search-results{margin-top:20px}.search-result{display:block;padding:16px 22px;border-radius:var(--radius-md);background:var(--bg-elevated);border:1px solid var(--border);margin-bottom:12px;box-shadow:var(--shadow-sm);transition:transform .3s,box-shadow .3s}.search-result:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.search-result-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--text-3);margin-bottom:6px}.search-result-title{font-size:16.5px;font-weight:600;letter-spacing:-.015em}.search-result-summary{margin:6px 0 0;font-size:13.5px;color:var(--text-2);line-height:1.55}.search-result mark{background:rgba(255,214,0,.35);color:inherit;border-radius:3px;padding:0 2px}[data-theme=dark] .search-result mark{background:rgba(255,214,0,.22);color:#ffe27a}.scat{display:inline-flex;align-items:center;padding:2.5px 8px 3px;border-radius:999px;font-size:11.5px;font-weight:500;line-height:1.35;white-space:nowrap;color:var(--text-2);background:rgba(120,120,128,.1)}.sdate{font-size:11.5px;color:var(--text-3)}.tool-article{padding:calc(var(--header-h) + 40px)0 72px}.tool-header{text-align:center;margin-bottom:8px}.tool-header .article-back{justify-content:center}.tool-title{margin:14px 0 0;font-size:clamp(28px,5vw,40px);font-weight:700;letter-spacing:-.02em}.tool-lead{margin:14px auto 0;max-width:560px;font-size:16px;line-height:1.6;color:var(--text-2)}.tool-header+.links-grid{margin-top:28px}.tool-stage{margin-top:32px}.tool-article-plain{padding:calc(var(--header-h) + 22px)0 56px}.tool-article-plain .tool-stage{margin-top:0}.tool-frame{display:block;width:100%;min-height:320px;border:0;background:0 0}.tool-intro{padding:16px 0 32px}.intro-card{background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border:1px solid var(--border);border-radius:20px;padding:36px 40px;box-shadow:0 4px 24px rgba(0,0,0,4%)}.intro-card h2{margin:0 0 12px;font-size:22px;font-weight:700;letter-spacing:-.015em}.intro-card>p{margin:0 0 24px;font-size:15px;line-height:1.7;color:var(--text-2)}.intro-features{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 24px;margin-bottom:20px}.intro-feat{display:flex;gap:14px;align-items:flex-start}.intro-feat-icon{font-size:28px;line-height:1;flex-shrink:0;margin-top:2px}.intro-feat h3{margin:0 0 4px;font-size:15px;font-weight:600}.intro-feat p{margin:0;font-size:13.5px;line-height:1.55;color:var(--text-2)}.intro-tip{margin:0;padding:12px 16px;background:var(--bg-elevated);border-radius:12px;font-size:13.5px;color:var(--text-2);border:1px solid var(--border)}.tool-main{padding:0 0 60px}.tool-iframe-wrap{background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border:1px solid var(--border);border-radius:20px;overflow:hidden;box-shadow:0 8px 32px rgba(0,0,0,6%)}.tool-iframe{display:block;width:100%;min-height:600px;border:0;background:var(--bg)}@media(max-width:768px){.intro-card{padding:24px 20px}.intro-features{grid-template-columns:1fr;gap:14px}.intro-card h2{font-size:19px}.tool-iframe{min-height:480px}}@media(max-width:640px){.tool-article{padding:24px 0 56px}.tool-stage{margin-top:20px}}.pagination{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:44px}.page-btn{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 10px;font-size:14px;border-radius:980px;color:var(--text-2);background:var(--bg-elevated);border:1px solid var(--border);transition:background .2s,color .2s}.page-btn:hover{color:var(--text)}.page-btn.current{background:var(--blue);border-color:var(--blue);color:#fff}.page-btn.disabled{opacity:.35;pointer-events:none}.page-ellipsis{align-self:center;color:var(--text-3)}.site-footer{margin-top:40px;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border-top:.5px solid var(--border-strong);padding:56px 0 32px}.footer-inner{max-width:1120px;margin:0 auto;padding:0 22px}.footer-grid{display:grid;grid-template-columns:minmax(0,2fr)minmax(0,1fr)minmax(0,1fr)minmax(0,1fr);gap:32px;padding-bottom:40px;border-bottom:1px solid var(--border)}.footer-desc{margin:14px 0 0;font-size:13px;line-height:1.6;color:var(--text-3);max-width:280px}.footer-col{display:flex;flex-direction:column;gap:10px}.footer-col h4{margin:0 0 4px;font-size:13px;font-weight:600;color:var(--text)}.footer-col a{font-size:13px;color:var(--text-3);transition:color .2s}.footer-col a:hover{color:var(--blue)}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:26px}.footer-bottom p{margin:0;font-size:12.5px;color:var(--text-3)}.visitor-counter{display:inline-flex;align-items:center;flex-wrap:wrap;gap:12px 14px;font-size:12px;color:var(--text-3);opacity:0;transform:translateY(4px);transition:opacity .6s var(--ease-out),transform .6s var(--ease-out)}.visitor-counter.loaded{opacity:1;transform:translateY(0)}.visitor-stat{display:inline-flex;align-items:center;gap:5px;white-space:nowrap}.visitor-icon{opacity:.6;flex-shrink:0}.visitor-text{font-variant-numeric:tabular-nums}#visitor-count,#visitor-week,#visitor-day{font-weight:600;color:var(--text-2)}.footer-social{display:flex;gap:6px}.footer-social a{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:50%;color:var(--text-3);transition:background .2s,color .2s}.footer-social a:hover{background:var(--bg-tinted);color:var(--text)}.back-top{position:fixed;right:24px;bottom:24px;z-index:90;display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border:.5px solid var(--border-strong);color:var(--text-2);box-shadow:var(--shadow-md);opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .3s,transform .3s var(--ease-spring),color .2s,box-shadow .3s}.back-top.visible{opacity:1;transform:none;pointer-events:auto}.back-top:hover{color:var(--blue);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.back-top:active{transform:translateY(0)scale(.92);transition-duration:.1s}.back-fab{position:fixed;top:calc(var(--header-h) + 16px);left:max(14px,calc((100vw - 1240px)/2 - 60px));z-index:90;display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border:.5px solid var(--border-strong);color:var(--text-2);box-shadow:var(--shadow-md);-webkit-tap-highlight-color:transparent;transition:color .2s,box-shadow .3s,transform .3s var(--ease-spring),background .28s,border-color .28s}.back-fab:hover{color:var(--blue);box-shadow:var(--shadow-lg);transform:translateY(-2px)}.back-fab:active{transform:translateY(0)scale(.92);transition-duration:.1s}.back-header{display:none}@media(max-width:1439.98px){.back-fab{display:none}.article-back--float-fallback{display:inline-flex}}.toc-fab{position:fixed;right:24px;bottom:calc(24px + 42px + 12px);z-index:96;display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;border:1px solid var(--border);background:var(--bg-glass);-webkit-backdrop-filter:blur(16px)saturate(180%);backdrop-filter:blur(16px)saturate(180%);color:var(--text-2);box-shadow:var(--shadow-md);cursor:pointer;padding:0;-webkit-tap-highlight-color:transparent;opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .3s,transform .3s cubic-bezier(.16,1,.3,1),color .2s,background .28s,border-color .28s,box-shadow .28s}.toc-fab.visible{opacity:1;transform:none;pointer-events:auto}.toc-fab:hover{color:var(--blue)}.toc-fab:active{transform:scale(.9)}.toc-fab.open{background:var(--blue);border-color:transparent;color:#fff;box-shadow:0 10px 30px rgba(0,113,227,.38)}.toc-fab-backdrop{position:fixed;inset:0;z-index:94;display:none;background:rgba(10,10,12,.22);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .3s ease,visibility 0s linear .3s}.toc-fab-backdrop.open{opacity:1;visibility:visible;pointer-events:auto;transition:opacity .3s ease,visibility 0s}.toc-fab-panel{position:fixed;right:24px;bottom:calc(24px + 42px * 2 + 12px * 2);z-index:95;display:none;flex-direction:column;width:min(300px,calc(100vw - 40px));max-height:min(58vh,500px);background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(24px);backdrop-filter:saturate(180%)blur(24px);border:1px solid var(--border);border-radius:18px;box-shadow:0 26px 70px rgba(0,0,0,.22),0 4px 16px rgba(0,0,0,8%);overflow:hidden;transform-origin:100% 100%;opacity:0;visibility:hidden;pointer-events:none;transform:scale(.86)translateY(14px);transition:opacity .28s ease,transform .38s cubic-bezier(.16,1,.3,1),visibility 0s linear .38s}.toc-fab-panel.open{opacity:1;visibility:visible;pointer-events:auto;transform:none;transition:opacity .28s ease,transform .38s cubic-bezier(.16,1,.3,1),visibility 0s}.toc-fab-head{display:flex;align-items:center;justify-content:space-between;flex-shrink:0;padding:12px 12px 10px 18px;border-bottom:1px solid var(--border)}.toc-fab-title{font-size:12.5px;font-weight:650;letter-spacing:.05em;color:var(--text-3);text-transform:uppercase}.toc-fab-close{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;border:none;background:var(--bg-tinted);color:var(--text-3);cursor:pointer;padding:0;transition:color .2s,transform .2s}.toc-fab-close:hover{color:var(--text)}.toc-fab-close:active{transform:scale(.86)}.toc-fab-body{overflow-y:auto;overscroll-behavior:contain;padding:10px 8px 14px;scrollbar-width:thin;scrollbar-color:var(--border-strong)transparent}.toc-fab-body::-webkit-scrollbar{width:4px}.toc-fab-body::-webkit-scrollbar-track{background:0 0}.toc-fab-body::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:999px}.toc-fab-body #TableOfContents a{margin:1px 0;padding:7px 10px;border-left:none;border-radius:9px;font-size:13.5px}.toc-fab-body #TableOfContents a:hover{background:var(--bg-tinted)}.toc-fab-body #TableOfContents a.active{background:rgba(0,113,227,.1);border-left-color:transparent}[data-theme=dark] .toc-fab-body #TableOfContents a.active{background:rgba(41,151,255,.14)}@media(max-width:1080px){.toc-fab{display:flex}.toc-fab-panel{display:flex}.toc-fab-backdrop{display:block}}@media(max-width:834px){.toc-fab{right:20px;bottom:calc(20px + 42px + 12px + env(safe-area-inset-bottom,0px))}.toc-fab-panel{right:20px;bottom:calc(20px + 42px * 2 + 12px * 2 + env(safe-area-inset-bottom,0px))}}.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}.reveal.revealed{opacity:1;transform:none}.stagger>.reveal:nth-child(2){transition-delay:.06s}.stagger>.reveal:nth-child(3){transition-delay:.12s}.stagger>.reveal:nth-child(4){transition-delay:.18s}.stagger>.reveal:nth-child(5){transition-delay:.24s}.stagger>.reveal:nth-child(6){transition-delay:.3s}@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.stagger>.reveal{transition-delay:0s}.hero-glow{animation:none}html{scroll-behavior:auto}.toc-fab-panel{transform:none;transition:opacity .15s ease,visibility 0s linear .15s}.toc-fab-panel.open{transition:opacity .15s ease,visibility 0s}.toc-fab-backdrop{transition:opacity .15s ease,visibility 0s linear .15s}.toc-fab-backdrop.open{transition:opacity .15s ease,visibility 0s}}.hero-404{padding:calc(var(--header-h) + 120px)0 120px}@media(hover:none){.card:hover,.cat-card:hover,.link-card:hover,.btn-primary:hover,.btn-ghost:hover,.search-result:hover,.article-nav-item:hover,.bento-feature:hover,.room-card:hover,.latest-item:hover,.archive-item:hover{transform:none}}@media(max-width:1080px){.article-layout{grid-template-columns:minmax(0,1fr)}.article-aside{display:none}.toc-mobile{display:block}.bento{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:834px){.site-nav{display:none}.nav-link{padding:12px 14px;font-size:15px}.nav-toggle{display:inline-flex}.section{padding:76px 0}.cat-card-big{grid-column:span 1}.latest-item{grid-template-columns:44px 1fr auto auto}.latest-cat{display:none}.footer-grid{grid-template-columns:1fr 1fr}.article-nav{grid-template-columns:1fr}.bento{grid-template-columns:repeat(2,minmax(0,1fr))}.bento-feature,.bento-wide,.bento-rooms{grid-column:span 2}.back-top{right:20px;bottom:calc(20px + env(safe-area-inset-bottom,0px))}}@media(max-width:520px){.hero{padding-top:calc(var(--header-h) + 48px);padding-bottom:56px}.hero-title{margin-bottom:14px}.hero-actions .btn{width:100%;justify-content:center}.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:24px 12px;margin-top:44px}.stat{align-items:center;text-align:center}.decor-note{font-size:14px}.decor-dot{display:none}.decor-line,.decor-ring{display:none}.hero-badge{margin-bottom:24px}.cat-grid{grid-template-columns:1fr}.bento{grid-template-columns:1fr;grid-auto-rows:auto}.bento-feature,.bento-wide,.bento-rooms{grid-column:span 1}.bento-feature{padding:24px}.bento-rooms{grid-template-rows:none}.room-card{min-height:150px}.footer-grid{grid-template-columns:1fr}.grid-3{grid-template-columns:1fr}.section-head{flex-direction:column;align-items:flex-start}.section{padding:64px 0}.prose{font-size:16px}.archive-item{grid-template-columns:36px 1fr auto}.archive-item .latest-cat{display:none}.latest-item{padding:13px 16px;gap:12px}.latest-date{font-size:12px}}@media(max-width:580px){.cat-grid .bento-rooms{grid-column:1;grid-row:auto}}.gallery{display:flex;flex-wrap:nowrap;gap:10px;margin:2em 0 .4em;padding-bottom:2.1em;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;animation:gallery-in .7s cubic-bezier(.16,1,.3,1)both}.gallery::-webkit-scrollbar{display:none}@keyframes gallery-in{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}.gallery-item{position:relative;margin:0;flex-shrink:1;min-width:52px;cursor:zoom-in}.gallery-item img{width:100%;height:auto;display:block;margin:0;border-radius:10px;box-shadow:var(--shadow-sm);touch-action:manipulation;transition:transform .35s cubic-bezier(.32,.72,0,1),box-shadow .35s ease}@media(hover:hover){.gallery-item:hover{z-index:2}.gallery-item:hover img{transform:scale(1.035);box-shadow:var(--shadow-md)}}.gallery-item figcaption{position:absolute;top:calc(100% + 7px);left:2px;right:2px;text-align:center;font-size:12px;line-height:1.45;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;pointer-events:none}.prose>figure.gallery-item,.tool-stage>figure.gallery-item{margin:1.8em auto;text-align:center}.prose>figure.gallery-item img,.tool-stage>figure.gallery-item img{display:block;margin:0 auto;width:auto;max-width:100%;max-height:880px;border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);cursor:zoom-in}.prose>figure.gallery-item figcaption,.tool-stage>figure.gallery-item figcaption{position:static;display:block;margin-top:10px;white-space:normal;font-size:13px;color:var(--text-3)}.lb{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .32s ease,visibility 0s linear .32s}.lb.open{opacity:1;visibility:visible;transition:opacity .32s ease}.lb[hidden]{display:none}.lb-backdrop{position:absolute;inset:0;background:rgba(10,10,12,.86);-webkit-backdrop-filter:blur(24px)saturate(1.4);backdrop-filter:blur(24px)saturate(1.4)}.lb-stage{position:relative;z-index:1;max-width:calc(100vw - 88px);max-height:calc(100vh - 132px);display:flex;align-items:center;justify-content:center;touch-action:none}.lb-img{max-width:100%;max-height:calc(100vh - 132px);object-fit:contain;border-radius:10px;box-shadow:0 24px 80px rgba(0,0,0,.55);user-select:none;-webkit-user-drag:none;touch-action:none;will-change:transform;transition:transform .42s cubic-bezier(.32,.72,0,1),opacity .25s ease}.lb-top{position:absolute;top:18px;left:0;right:0;z-index:3;display:flex;justify-content:space-between;align-items:center;padding:0 22px}.lb-top-left{display:flex;align-items:center;gap:10px;min-width:0}.lb-views{display:inline-flex;align-items:center;gap:5px;color:rgba(255,255,255,.92);font-size:13px;background:rgba(255,255,255,.14);padding:6px 12px;border-radius:999px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);font-variant-numeric:tabular-nums}.lb-views[hidden]{display:none}.lb-counter{color:rgba(255,255,255,.92);font-size:13.5px;font-weight:600;letter-spacing:.04em;background:rgba(255,255,255,.14);padding:6px 14px;border-radius:999px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.lb-close,.lb-nav{width:44px;height:44px;border-radius:50%;border:none;cursor:pointer;background:rgba(255,255,255,.14);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:#fff;font-size:26px;line-height:1;font-family:var(--font);display:flex;align-items:center;justify-content:center;padding:0;transition:background .2s ease,transform .2s ease}.lb-close:hover,.lb-nav:hover{background:rgba(255,255,255,.26)}.lb-close:active,.lb-nav:active{transform:scale(.9)}.lb-close{font-size:24px}.lb-nav{position:absolute;top:50%;margin-top:-22px;z-index:3;font-size:34px;font-weight:500}.lb-prev{left:22px}.lb-next{right:22px}.lb-caption{position:absolute;bottom:26px;left:10%;right:10%;z-index:3;text-align:center;color:rgba(255,255,255,.82);font-size:13.5px;line-height:1.5;text-shadow:0 1px 8px rgba(0,0,0,.5);pointer-events:none}@media(max-width:760px){.lb-stage{max-width:calc(100vw - 24px);max-height:calc(100vh - 108px)}.lb-img{max-height:calc(100vh - 108px)}.lb-top{padding:0 14px;top:12px}.lb-nav{display:none}.lb-caption{bottom:calc(18px + env(safe-area-inset-bottom,0px))}}@media(prefers-reduced-motion:reduce){.lb-img{transition:opacity .15s ease}.gallery{animation:none}}.encrypt-gate{display:flex;justify-content:center;padding:56px 0 32px}.encrypt-card{text-align:center;max-width:360px;width:100%;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:48px 36px 40px}.encrypt-icon{display:inline-flex;align-items:center;justify-content:center;width:68px;height:68px;border-radius:50%;background:var(--grad-1);color:#fff;margin-bottom:24px;box-shadow:0 8px 24px rgba(0,113,227,.28)}.encrypt-title{font-size:21px;font-weight:600;letter-spacing:-.02em;margin:0 0 8px;color:var(--text)}.encrypt-desc{font-size:15px;color:var(--text-2);margin:0 0 28px;line-height:1.5}.encrypt-form{display:flex;flex-direction:column;gap:10px}.encrypt-input-wrap{display:flex;gap:6px;background:var(--bg-tinted);border-radius:980px;padding:4px 4px 4px 18px;border:1.5px solid transparent;transition:border-color .2s,box-shadow .2s}.encrypt-input-wrap:focus-within{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.1)}.encrypt-input{flex:1;min-width:0;border:none;background:0 0;font-size:16px;font-family:var(--font);color:var(--text);outline:none;padding:10px 0}.encrypt-input::placeholder{color:var(--text-3)}.encrypt-submit{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border:none;border-radius:50%;background:var(--blue);color:#fff;cursor:pointer;transition:background .2s,transform .2s;flex-shrink:0}.encrypt-submit:hover:not(:disabled){background:var(--blue-deep);transform:scale(1.06)}.encrypt-error{font-size:13px;color:#ff3b30;min-height:18px;margin:0;opacity:0;transform:translateY(-4px);transition:opacity .25s,transform .25s}.encrypt-error.show{opacity:1;transform:translateY(0)}.encrypt-gate.unlocked{animation:gateOut .5s cubic-bezier(.4,0,.2,1)forwards}@keyframes gateOut{to{opacity:0;transform:translateY(-16px)scale(.97);max-height:0;margin:0;padding-top:0;padding-bottom:0;overflow:hidden}}.encrypt-reveal{opacity:0;transform:translateY(20px)}.encrypt-reveal.encrypt-reveal-in{animation:contentReveal .7s cubic-bezier(.16,1,.3,1)forwards}@keyframes contentReveal{to{opacity:1;transform:translateY(0)}}@media(max-width:640px){.encrypt-gate{padding:40px 0 24px}.encrypt-card{padding:36px 24px 32px}.encrypt-icon{width:60px;height:60px}.encrypt-title{font-size:19px}}@media(prefers-reduced-motion:reduce){.encrypt-gate.unlocked,.encrypt-reveal.encrypt-reveal-in{animation:none}.encrypt-gate.unlocked{display:none}.encrypt-reveal{opacity:1;transform:none}}.quiz-tool-page{min-height:100vh}.quiz-hero{position:relative;padding:120px 0 60px;text-align:center;overflow:hidden}.quiz-hero .hero-glow-1{top:20%;left:10%;width:400px;height:400px;background:radial-gradient(circle,rgba(0,113,227,.15),transparent 70%)}.quiz-hero .hero-glow-2{top:30%;right:10%;width:300px;height:300px;background:radial-gradient(circle,rgba(175,82,222,.1),transparent 70%)}.quiz-hero .hero-badge{display:inline-block;padding:6px 16px;border-radius:980px;background:var(--blue-tinted);color:var(--blue);font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:20px}.quiz-hero .hero-title{font-size:clamp(36px,5vw,56px);font-weight:700;letter-spacing:-.03em;line-height:1.1;margin:0 0 12px}.quiz-hero .hero-accent{background:var(--grad-1);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.quiz-hero .hero-sub{font-size:17px;color:var(--text-2);margin:0 auto}.quiz-main{padding:20px 0 80px}.quiz-start{max-width:720px;margin:0 auto}.quiz-mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:32px}@media(max-width:640px){.quiz-mode-grid{grid-template-columns:1fr}}.quiz-mode-card{background:var(--bg-elevated);border:2px solid var(--border);border-radius:var(--radius-lg);padding:36px 24px;cursor:pointer;transition:all .3s cubic-bezier(.16,1,.3,1);text-align:center;position:relative;overflow:hidden}.quiz-mode-card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--blue-tinted),transparent);opacity:0;transition:opacity .3s}.quiz-mode-card:hover{border-color:var(--blue);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,113,227,.12)}.quiz-mode-card:hover::before{opacity:.5}.quiz-mode-card.selected{border-color:var(--blue);background:var(--blue-tinted)}.quiz-mode-card .mode-icon{color:var(--blue);margin-bottom:16px;position:relative}.quiz-mode-card .mode-title{font-size:22px;font-weight:700;margin:0 0 6px;position:relative}.quiz-mode-card .mode-desc{font-size:14px;color:var(--text-2);margin:0 0 12px;position:relative}.quiz-mode-card .mode-count{display:inline-block;padding:3px 12px;border-radius:980px;background:var(--bg-tinted);color:var(--text-2);font-size:12px;font-weight:600;position:relative}.quiz-options{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;animation:quizSlideIn .4s cubic-bezier(.16,1,.3,1)}.option-group{margin-bottom:20px}.option-group:last-of-type{margin-bottom:24px}.option-label{display:block;font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:10px;text-transform:uppercase;letter-spacing:.05em}.option-chips{display:flex;flex-wrap:wrap;gap:8px}.cat-chip,.num-chip{padding:8px 18px;border:1.5px solid var(--border);border-radius:980px;background:0 0;color:var(--text);font-size:14px;font-weight:500;cursor:pointer;transition:all .2s}.cat-chip:hover,.num-chip:hover{border-color:var(--blue);color:var(--blue)}.cat-chip.active,.num-chip.active{background:var(--blue);border-color:var(--blue);color:#fff}.quiz-go-btn{display:block;width:100%;padding:16px;border:none;border-radius:var(--radius-md);background:var(--grad-1);color:#fff;font-size:17px;font-weight:600;cursor:pointer;transition:all .2s}.quiz-go-btn:hover{transform:scale(1.02);box-shadow:0 8px 24px rgba(0,113,227,.3)}.quiz-go-btn:active{transform:scale(.99)}.quiz-play{max-width:720px;margin:0 auto}.quiz-progress-bar{height:4px;background:var(--bg-tinted);border-radius:980px;overflow:hidden;margin-bottom:16px}.quiz-progress-fill{height:100%;background:var(--grad-1);border-radius:980px;transition:width .4s cubic-bezier(.16,1,.3,1);width:0%}.quiz-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;gap:12px}.quiz-counter{font-size:14px;font-weight:600;color:var(--text-2)}.quiz-timer{font-size:14px;font-weight:600;color:var(--text-2);font-variant-numeric:tabular-nums}.quiz-score{font-size:14px;font-weight:600;color:var(--blue)}.quiz-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-md);min-height:280px}@keyframes quizSlideIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.quiz-card-inner{animation:quizSlideIn .4s cubic-bezier(.16,1,.3,1)}.quiz-category-tag{display:inline-block;padding:4px 12px;border-radius:980px;background:var(--blue-tinted);color:var(--blue);font-size:12px;font-weight:600;margin-bottom:16px}.quiz-question{font-size:20px;font-weight:600;line-height:1.5;margin:0 0 24px;color:var(--text)}.quiz-choices{display:flex;flex-direction:column;gap:10px}.choice-btn{display:block;width:100%;text-align:left;padding:16px 20px;border:2px solid var(--border);border-radius:var(--radius-md);background:var(--bg);color:var(--text);font-size:16px;cursor:pointer;transition:all .2s cubic-bezier(.16,1,.3,1);position:relative}.choice-btn:hover:not(:disabled){border-color:var(--blue);background:var(--blue-tinted);transform:translateX(4px)}.choice-btn:disabled{cursor:default}.choice-btn.correct{border-color:var(--green);background:rgba(52,199,89,8%);color:var(--green)}.choice-btn.correct::after{content:'✓';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:18px;font-weight:700}.choice-btn.wrong{border-color:var(--red);background:rgba(255,59,48,8%);color:var(--red)}.choice-btn.wrong::after{content:'✗';position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:18px;font-weight:700}.quiz-feedback{margin-top:20px;padding:16px 20px;border-radius:var(--radius-md);font-size:15px;line-height:1.6;animation:quizSlideIn .3s ease}.quiz-feedback.correct{background:rgba(52,199,89,8%);border:1px solid rgba(52,199,89,.2)}.quiz-feedback.wrong{background:rgba(255,59,48,8%);border:1px solid rgba(255,59,48,.2)}.fb-icon{font-weight:700}.quiz-next-btn{display:inline-flex;margin-top:20px;margin-left:auto;padding:12px 32px;border:none;border-radius:980px;background:var(--grad-1);color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s;float:right}.quiz-next-btn:hover{transform:scale(1.03);box-shadow:0 6px 20px rgba(0,113,227,.3)}.quiz-next-btn:active{transform:scale(.98)}.quiz-result{max-width:640px;margin:0 auto}.result-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-lg);padding:48px 36px;box-shadow:var(--shadow-md);text-align:center}.result-score-ring{width:140px;height:140px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0 auto 24px;transition:background .6s ease;position:relative}.result-score-ring::after{content:'';position:absolute;inset:8px;border-radius:50%;background:var(--bg-elevated)}.result-score-num,.result-score-total{position:relative;z-index:1}.result-score-num{font-size:48px;font-weight:700;line-height:1;color:var(--blue)}.result-score-total{font-size:16px;color:var(--text-2);margin-top:4px}.result-title{font-size:28px;font-weight:700;margin:0 0 8px}.result-desc{font-size:15px;color:var(--text-2);margin:0 0 8px}.result-time{font-size:14px;color:var(--text-2);margin:0 0 24px;font-variant-numeric:tabular-nums}.result-breakdown{margin-bottom:28px}.breakdown-item{display:flex;align-items:center;gap:12px;margin-bottom:10px;text-align:left}.bd-label{font-size:14px;font-weight:500;min-width:50px}.bd-bar{flex:1;height:8px;background:var(--bg-tinted);border-radius:980px;overflow:hidden}.bd-fill{height:100%;border-radius:980px;transition:width .6s cubic-bezier(.16,1,.3,1)}.bd-num{font-size:13px;font-weight:600;color:var(--text-2);min-width:36px;text-align:right}.result-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.result-btn{padding:12px 24px;border:1.5px solid var(--border);border-radius:980px;background:0 0;color:var(--text);font-size:15px;font-weight:500;cursor:pointer;transition:all .2s}.result-btn.primary{background:var(--grad-1);color:#fff;border-color:transparent}.result-btn:hover{transform:scale(1.03);box-shadow:0 4px 16px rgba(0,0,0,8%)}.result-btn:active{transform:scale(.98)}.quiz-review{max-width:720px;margin:0 auto}.review-title{font-size:24px;font-weight:700;margin:0 0 24px;text-align:center}.review-item{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;margin-bottom:16px}.review-cat{display:inline-block;padding:3px 10px;border-radius:980px;background:var(--bg-tinted);font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:8px}.review-q{font-size:17px;font-weight:600;margin:0 0 12px}.review-choices{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.review-choice{padding:8px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px}.review-choice.review-correct{border-color:var(--green);background:rgba(52,199,89,8%);color:var(--green)}.review-choice.review-wrong{border-color:var(--red);background:rgba(255,59,48,8%);color:var(--red);text-decoration:line-through}.review-explain{font-size:14px;color:var(--text-2);margin:0;padding-top:8px;border-top:1px solid var(--border)}@media(max-width:640px){.quiz-card{padding:24px 20px}.quiz-mode-card{padding:24px 16px}.result-card{padding:32px 20px}.result-actions{flex-direction:column}.result-btn{width:100%}.choice-btn{padding:14px 16px;font-size:15px}.quiz-hero .hero-glow{filter:none;opacity:.12}.quiz-hero{padding:80px 0 40px}.quiz-options{padding:20px 16px}.quiz-question{font-size:18px}.choice-key{display:inline-flex;width:24px;height:24px;border-radius:50%;background:var(--bg-tinted);align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-right:10px;flex-shrink:0}}.diff-chips .diff-chip{position:relative}.diff-chips .diff-chip[data-diff=easy].active{background:var(--green);border-color:var(--green)}.diff-chips .diff-chip[data-diff=medium].active{background:var(--orange);border-color:var(--orange)}.diff-chips .diff-chip[data-diff=hard].active{background:var(--red);border-color:var(--red)}.choice-key{display:inline-flex;width:24px;height:24px;border-radius:50%;background:var(--bg-tinted);align-items:center;justify-content:center;font-size:12px;font-weight:700;margin-right:10px;flex-shrink:0}.choice-btn.correct .choice-key{background:rgba(52,199,89,.2)}.choice-btn.wrong .choice-key{background:rgba(255,59,48,.2)}.quiz-play,.quiz-result,.quiz-review{content-visibility:auto}.quiz-history{max-width:720px;margin:0 auto}.history-list{display:flex;flex-direction:column;gap:10px}.history-item{display:flex;align-items:center;gap:16px;padding:14px 20px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius-md)}.history-info{flex:1;display:flex;gap:10px;align-items:center;flex-wrap:wrap}.history-lang{padding:3px 10px;border-radius:980px;background:var(--blue-tinted);color:var(--blue);font-size:12px;font-weight:600}.history-diff{padding:3px 10px;border-radius:980px;background:var(--bg-tinted);color:var(--text-2);font-size:12px;font-weight:600}.history-date{font-size:13px;color:var(--text-2)}.history-score{font-size:18px;font-weight:700;font-variant-numeric:tabular-nums}.history-time{font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;min-width:48px;text-align:right}.history-empty{text-align:center;color:var(--text-2);padding:40px 0}.history-actions{display:flex;gap:10px;justify-content:center;margin-top:24px}@media(prefers-reduced-motion:reduce){.quiz-card-inner,.quiz-options,.quiz-feedback{animation:none}.quiz-progress-fill,.bd-fill{transition:none}.choice-btn,.quiz-mode-card,.quiz-go-btn,.quiz-next-btn,.result-btn{transition:none}}.metro-page{min-height:100vh}.metro-main{padding:0 0 60px}.metro-display{max-width:640px;margin:0 auto 32px;padding:48px 40px 40px;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border:.5px solid var(--border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);text-align:center}.metro-topbar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;margin-bottom:16px}.metro-play-btn{justify-self:start;width:56px;height:56px;border:none;border-radius:50%;background:linear-gradient(180deg,#3395ff,var(--blue));color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 18px rgba(0,113,227,.32);transition:transform .15s var(--ease-spring),box-shadow .2s,background .2s}.metro-play-btn svg{margin-left:3px}.metro-play-btn:hover{box-shadow:0 8px 24px rgba(0,113,227,.42)}.metro-play-btn:active{transform:scale(.94)}.metro-play-btn.playing{background:linear-gradient(180deg,#4a4a4f,var(--text));box-shadow:0 6px 18px rgba(0,0,0,.18)}.metro-play-btn.playing svg{margin-left:0}.metro-tools{justify-self:end;display:flex;gap:8px}.metro-ico-btn{width:40px;height:40px;border-radius:50%;border:.5px solid var(--border-strong);background:var(--bg-elevated);color:var(--text-2);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .15s var(--ease-spring),background .2s,color .2s,border-color .2s}.metro-ico-btn:hover{background:var(--bg-tinted);color:var(--text)}.metro-ico-btn:active{transform:scale(.9)}.metro-ico-btn.tapped,.metro-ico-btn.copied{background:var(--blue);border-color:var(--blue);color:#fff;transform:scale(.9)}#metro-rand:active{transform:rotate(180deg);transition-duration:.4s}.metro-bpm-core{justify-self:center;display:flex;flex-direction:column;align-items:center}.metro-bpm-num{font-size:46px;font-weight:700;letter-spacing:-.04em;line-height:1;background:linear-gradient(180deg,var(--text) 30%,var(--text-3) 130%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;width:118px;text-align:center;border:none;outline:none;background-color:transparent;font-family:inherit;-moz-appearance:textfield;padding:0}.metro-bpm-num::-webkit-inner-spin-button,.metro-bpm-num::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.metro-bpm-label{font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.08em;margin-top:1px}.metro-bpm-row{display:flex;align-items:center;gap:12px;margin-bottom:18px}.metro-bpm-btn{flex-shrink:0;width:34px;height:34px;border-radius:50%;border:1px solid var(--border-strong);background:var(--bg-elevated);color:var(--text-2);font-size:18px;font-weight:300;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .15s var(--ease-spring),background .2s,color .2s}.metro-bpm-btn:hover{background:var(--bg-tinted);color:var(--text)}.metro-bpm-btn:active{transform:scale(.9)}.metro-slider{flex:1;-webkit-appearance:none;appearance:none;height:6px;background:var(--bg-tinted);border-radius:999px;outline:none}.metro-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:22px;height:22px;border-radius:50%;background:var(--blue);cursor:pointer;box-shadow:0 2px 8px rgba(0,113,227,.35);transition:transform .15s var(--ease-spring)}.metro-slider::-webkit-slider-thumb:active{transform:scale(1.2)}.metro-slider::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:var(--blue);cursor:pointer;border:none;box-shadow:0 2px 8px rgba(0,113,227,.35)}.metro-time-sig{display:flex;justify-content:center;margin-bottom:20px}.metro-time-field{position:relative;width:180px}.metro-time-input{width:100%;padding:9px 40px;font-size:15px;font-weight:600;text-align:center;border:.5px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--bg-elevated);color:var(--text);outline:none;transition:border-color .2s,box-shadow .2s;font-family:inherit}.metro-time-input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(0,113,227,.12)}.metro-time-go{position:absolute;right:5px;top:50%;transform:translateY(-50%);width:27px;height:27px;padding:0;border:none;border-radius:7px;background:var(--blue);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .15s var(--ease-spring),opacity .2s}.metro-time-go:hover{opacity:.88}.metro-time-go:active{transform:translateY(-50%)scale(.9)}.metro-beats{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;min-height:40px}.metro-beat-group{display:flex;align-items:center;gap:6px;padding:6px 10px;background:var(--bg-tinted);border-radius:var(--radius-sm)}.metro-beat{width:20px;height:20px;border-radius:50%;background:var(--bg-elevated);border:1px solid var(--border-strong);transition:transform .15s var(--ease-spring),background .15s,box-shadow .15s,border-color .15s;cursor:pointer}.metro-beat.accent{border-color:var(--blue);border-width:2px}.metro-beat.active{background:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.2);transform:scale(1.3)}.metro-beat.pulse{background:var(--blue);opacity:.45;transform:scale(1.1)}.metro-beat-sig{font-size:11px;color:var(--text-3);font-weight:500;margin-left:2px}.metro-sub{margin-top:22px;padding-top:20px;border-top:.5px solid var(--border-strong)}.metro-sub-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.metro-sub-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-width:66px;padding:8px 10px 6px;border:.5px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--bg-elevated);color:var(--text-2);cursor:pointer;font-family:inherit;transition:transform .2s var(--ease-spring),border-color .2s,box-shadow .2s,color .2s}.metro-sub-item:hover{transform:translateY(-2px);color:var(--text)}.metro-sub-item:active{transform:scale(.95)}.metro-sub-item.selected{border-color:var(--blue);border-width:1.5px;box-shadow:0 0 0 3px rgba(0,113,227,.12);color:var(--blue)}.metro-sub-item .sub-slots{display:flex;align-items:center;justify-content:center;gap:2px;height:16px}.metro-sub-item .sub-slot{position:relative;display:flex;align-items:center;justify-content:center;width:12px;height:16px;border-radius:4px;transition:background .15s}.metro-sub-item .sub-slot::before{content:'';display:block;border-radius:50%;background:currentColor;transition:width .15s,height .15s,background .15s,box-shadow .15s}.metro-sub-item .sub-slot.sounded::before{width:6px;height:6px;opacity:.42}.metro-sub-item .sub-slot.rest::before{width:8px;height:2px;border-radius:1px;opacity:.26}.metro-sub-item .sub-slot.sounded{cursor:pointer}.metro-sub-item .sub-slot.sounded:hover{background:rgba(0,113,227,.1)}.metro-sub-item .sub-slot.sounded.acc::before{width:8px;height:8px;opacity:1;background:var(--blue);box-shadow:0 0 0 2px rgba(0,113,227,.18)}.metro-sub-item .sub-label{font-size:12px;font-weight:600;white-space:nowrap}.metro-sub-group{margin-bottom:10px}.metro-sub-group:last-child{margin-bottom:0}.metro-sub-group-title{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.06em;margin-bottom:6px;text-align:left}.metro-sub-row{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px}.metro-sub-row .metro-sub-item{min-width:0;padding:7px 4px 6px}.metro-sub-row--tri .metro-sub-item .sub-slot{width:13px}.metro-panel{max-width:640px;margin:0 auto 24px;padding:28px 32px;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(20px);backdrop-filter:saturate(180%)blur(20px);border:.5px solid var(--border-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.metro-panel-title{font-size:17px;font-weight:600;color:var(--text);margin:0 0 18px}.metro-sound-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:10px;margin-bottom:20px}.metro-sound-item{cursor:pointer}.metro-sound-item input{display:none}.metro-sound-card{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 8px;border:.5px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--bg-elevated);transition:transform .2s var(--ease-spring),border-color .2s,box-shadow .2s;font-size:13px;font-weight:500;color:var(--text-2)}.metro-sound-card:hover{transform:translateY(-2px)}.metro-sound-card.selected{border-color:var(--blue);border-width:1.5px;box-shadow:0 0 0 3px rgba(0,113,227,.12);color:var(--blue)}.metro-sound-icon{font-size:24px}.metro-volume-row{display:flex;align-items:center;gap:14px}.metro-vol-label{flex:1;font-size:14px;font-weight:500;color:var(--text-2);white-space:nowrap}.metro-vol-slider{flex:1;-webkit-appearance:none;appearance:none;height:6px;background:var(--bg-tinted);border-radius:999px;outline:none}.metro-vol-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--text);cursor:pointer}.metro-mute-btn{width:36px;height:36px;border-radius:50%;border:.5px solid var(--border-strong);background:var(--bg-elevated);color:var(--text-2);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s}.metro-mute-btn:hover{background:var(--bg-tinted)}.metro-mute-btn.muted{color:#ff3b30}.metro-volume-row+.metro-volume-row{margin-top:16px}.metro-vol-desc{flex:1;font-size:13px;color:var(--text-3)}.metro-switch{position:relative;flex-shrink:0;width:46px;height:28px;padding:0;border:.5px solid var(--border-strong);border-radius:999px;background:var(--bg-tinted);cursor:pointer;transition:background .2s,border-color .2s}.metro-switch span{position:absolute;top:2px;left:2px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.2);transition:transform .22s var(--ease-spring)}.metro-switch.is-on{background:var(--blue);border-color:var(--blue)}.metro-switch.is-on span{transform:translateX(18px)}.metro-preset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.metro-preset{display:flex;flex-direction:column;align-items:center;gap:4px;padding:16px 12px;border:.5px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--bg-elevated);cursor:pointer;transition:transform .2s var(--ease-spring),border-color .2s,box-shadow .2s;font-family:inherit}.metro-preset:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:var(--blue)}.metro-preset:active{transform:scale(.97)}.preset-icon{font-size:28px}.preset-name{font-size:14px;font-weight:600;color:var(--text)}.preset-sig{font-size:12px;color:var(--text-3)}.metro-shortcuts{display:flex;flex-wrap:wrap;gap:12px 20px}.metro-sc{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}.metro-sc kbd{display:inline-block;padding:3px 8px;font-size:12px;font-family:-apple-system,sf pro text,sans-serif;background:var(--bg-elevated);border:.5px solid var(--border-strong);border-radius:6px;box-shadow:0 1px 0 var(--border-strong);color:var(--text);font-weight:500}@media(max-width:640px){.metro-display{padding:26px 18px}.metro-topbar{margin-bottom:12px}.metro-play-btn{width:48px;height:48px}.metro-play-btn svg{width:19px;height:19px;margin-left:2px}.metro-tools{gap:6px}.metro-ico-btn{width:34px;height:34px}.metro-ico-btn svg{width:17px;height:17px}.metro-bpm-num{font-size:38px;width:98px}.metro-bpm-btn{width:30px;height:30px;font-size:16px}.metro-bpm-row{gap:10px;margin-bottom:16px}.metro-time-field{width:158px}.metro-time-input{padding:8px 34px;font-size:14px}.metro-time-go{right:4px;width:24px;height:24px;border-radius:6px}.metro-time-go svg{width:13px;height:13px}.metro-panel{padding:20px}.metro-beat{width:16px;height:16px}.metro-sub-row{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;max-width:320px;margin:0 auto}.metro-sub-group-title{text-align:center}.metro-sub-row .metro-sub-item{padding:6px 4px 5px}}@media(max-width:380px){.metro-play-btn{width:44px;height:44px}.metro-ico-btn{width:32px;height:32px}.metro-ico-btn svg{width:16px;height:16px}.metro-bpm-num{font-size:34px;width:88px}.metro-time-field{width:142px}}.poly-display{background:var(--bg-glass);backdrop-filter:saturate(180%)blur(20px);-webkit-backdrop-filter:saturate(180%)blur(20px);border:.5px solid var(--border);border-radius:var(--radius-lg);padding:36px 32px 28px;box-shadow:var(--shadow-md);margin-bottom:24px}.poly-display .metro-slider{display:block;margin:16px auto 20px}.poly-setup-row{display:flex;align-items:stretch;justify-content:center;gap:16px;margin:20px 0 4px}.poly-setup-item{flex:1;max-width:200px;display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 16px;border-radius:var(--radius-md);background:var(--bg-elevated);border:.5px solid var(--border);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}.poly-setup-item::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;border-radius:3px 3px 0 0}.poly-setup-item[data-layer=a]::before{background:var(--grad-1)}.poly-setup-item[data-layer=b]::before{background:var(--grad-2)}.poly-setup-label{font-size:12px;font-weight:700;color:var(--text-3);letter-spacing:.08em;text-transform:uppercase}.poly-setup-controls{display:flex;align-items:center;gap:14px}.poly-num-btn{width:36px;height:36px;border-radius:50%;border:.5px solid var(--border-strong);background:var(--bg-tinted);color:var(--text);font-size:18px;font-weight:500;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s var(--ease-spring);font-family:inherit}.poly-num-btn:hover{border-color:var(--blue);color:var(--blue);background:rgba(0,113,227,8%)}.poly-num-btn:active{transform:scale(.88)}.poly-num{font-size:42px;font-weight:700;letter-spacing:-.03em;min-width:48px;text-align:center;background:linear-gradient(180deg,var(--text) 30%,var(--text-3) 130%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}.poly-vs{display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--text-3);font-weight:300;min-width:40px}.poly-layers{display:flex;flex-direction:column;gap:10px;margin-top:24px}.poly-layer{display:grid;grid-template-columns:60px 1fr;align-items:center;gap:16px;padding:14px 18px;border-radius:var(--radius-md);background:var(--bg-tinted);border:.5px solid var(--border)}.poly-layer-lcm{background:linear-gradient(180deg,rgba(0,199,190,6%),var(--bg-tinted));border-color:rgba(0,199,190,.15);margin:4px 0}.poly-layer-label{font-size:11px;font-weight:700;color:var(--text-3);letter-spacing:.06em;text-transform:uppercase;text-align:right}.poly-layer[data-layer=a] .poly-layer-label{color:var(--blue)}.poly-layer[data-layer=b] .poly-layer-label{color:#af52de}.poly-layer-lcm .poly-layer-label{color:#00a89e}.poly-beats{display:flex;justify-content:flex-start;align-items:center;gap:6px;flex-wrap:wrap;min-height:28px}.poly-beat-dot{width:22px;height:22px;border-radius:50%;border:2px solid var(--border-strong);background:var(--bg-elevated);cursor:pointer;padding:0;transition:all .12s var(--ease-spring);flex-shrink:0}.poly-beat-dot.on{background:var(--text-3);border-color:var(--text-2)}.poly-layer[data-layer=a] .poly-beat-dot.on{background:var(--blue);border-color:var(--blue-deep);box-shadow:0 2px 8px rgba(0,113,227,.3)}.poly-layer[data-layer=b] .poly-beat-dot.on{background:#af52de;border-color:#8e44ad;box-shadow:0 2px 8px rgba(175,82,222,.3)}.poly-layer-lcm .poly-beat-dot.on{background:#00c7be;border-color:#00a89e;box-shadow:0 2px 8px rgba(0,199,190,.25)}.poly-beat-dot.off{opacity:.3;background:0 0}.poly-beat-dot:hover{transform:scale(1.18)}.poly-beat-dot:active{transform:scale(.82)}.poly-beat-dot.active{transform:scale(1.45);z-index:1}.poly-layer[data-layer=a] .poly-beat-dot.active{box-shadow:0 0 0 5px rgba(0,113,227,.2),0 2px 12px rgba(0,113,227,.4)}.poly-layer[data-layer=b] .poly-beat-dot.active{box-shadow:0 0 0 5px rgba(175,82,222,.25),0 2px 12px rgba(175,82,222,.4)}.poly-layer-lcm .poly-beat-dot.active{box-shadow:0 0 0 5px rgba(0,199,190,.2),0 2px 12px rgba(0,199,190,.35)}.poly-preset-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.poly-preset-tab{padding:6px 14px;font-size:13px;font-weight:500;color:var(--text-2);background:var(--bg-tinted);border:.5px solid var(--border);border-radius:20px;cursor:pointer;transition:all .2s var(--ease-spring);font-family:inherit}.poly-preset-tab:hover{color:var(--text);border-color:var(--border-strong)}.poly-preset-tab.active{background:var(--blue);color:#fff;border-color:var(--blue)}.poly-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:12px}.poly-info-item{display:flex;flex-direction:column;gap:4px;padding:14px;border-radius:var(--radius-sm);background:var(--bg-tinted);border:.5px solid var(--border)}.poly-info-label{font-size:12px;color:var(--text-3);font-weight:500}.poly-info-value{font-size:22px;font-weight:700;color:var(--text);letter-spacing:-.01em}.poly-yes{color:#30b35a !important}.poly-no{color:var(--text-2) !important}.poly-info-desc{margin:8px 0 0;font-size:13px;color:var(--text-2);line-height:1.6}@media(max-width:640px){.poly-display{padding:28px 18px 22px}.poly-setup-row{gap:10px;flex-wrap:nowrap}.poly-setup-item{padding:14px 10px;gap:8px}.poly-num{font-size:32px}.poly-num-btn{width:32px;height:32px;font-size:16px}.poly-vs{font-size:18px;min-width:28px}.poly-layer{grid-template-columns:56px 1fr;padding:12px;gap:10px}.poly-layer-label{font-size:10px}.poly-beats{gap:5px}.poly-beat-dot{width:18px;height:18px;border-width:1.5px}.poly-info-grid{grid-template-columns:repeat(2,1fr)}}.poly-iframe-wrap{background:var(--bg-glass);backdrop-filter:saturate(180%)blur(20px);-webkit-backdrop-filter:saturate(180%)blur(20px);border:.5px solid var(--border);border-radius:var(--radius-lg);padding:12px;box-shadow:var(--shadow-md);overflow:hidden}.poly-iframe{width:100%;height:900px;border:none;border-radius:calc(var(--radius-lg) - 4px);background:#fff;display:block}@media(max-width:640px){.poly-iframe{height:1100px}}.travel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}@media(max-width:860px){.travel-grid{grid-template-columns:1fr}}.travel-card{display:block;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);background:var(--bg-elevated);transition:transform .45s var(--ease-spring),box-shadow .45s ease}.travel-cover{position:relative;aspect-ratio:4/3;overflow:hidden}.travel-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .85s var(--ease-out)}.travel-shade{position:absolute;inset:0;background:linear-gradient(180deg,transparent 38%,rgba(0,0,0,.52) 100%)}.travel-info{position:absolute;left:22px;right:22px;bottom:18px;color:#fff;text-shadow:0 1px 12px rgba(0,0,0,.4)}.travel-name{margin:0 0 4px;font-size:clamp(20px,2.4vw,26px);font-weight:700;letter-spacing:.01em}.travel-meta{margin:0;font-size:13px;opacity:.86;display:flex;flex-wrap:wrap;gap:4px 14px}.travel-cover-fallback{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:44px;background:var(--bg-tinted)}@media(hover:hover){.travel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.travel-card:hover .travel-cover img{transform:scale(1.04)}}.travel-hero{position:relative;padding:76px 0 44px;overflow:hidden}.travel-back{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2);margin-bottom:22px;transition:color .25s ease,gap .25s ease}.travel-back:hover{color:var(--blue);gap:10px}.travel-back-arrow{font-family:ui-monospace,monospace}.travel-hero-title{margin:0 0 10px;font-size:clamp(30px,4.6vw,44px);font-weight:800;letter-spacing:-.015em}.travel-hero-meta{margin:0 0 8px;font-size:14px;color:var(--text-2);display:flex;flex-wrap:wrap;gap:4px 14px}.travel-hero-desc{margin:0;max-width:640px;font-size:16px;color:var(--text-2)}.travel-masonry{columns:3 280px;column-gap:18px}@media(max-width:860px){.travel-masonry{columns:2 44vw;column-gap:12px}}@media(max-width:560px){.travel-masonry{columns:2;column-gap:10px}}.travel-masonry figure.gallery-item.travel-photo{break-inside:avoid;margin:0 0 18px;flex-shrink:1;min-width:0;position:relative}@media(max-width:560px){.travel-masonry figure.gallery-item.travel-photo{margin-bottom:10px}}.travel-photo img{border-radius:var(--radius-md);box-shadow:var(--shadow-sm);width:100%;height:auto;cursor:zoom-in}.photo-views{position:absolute;right:12px;bottom:12px;display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:999px;background:rgba(0,0,0,.4);color:rgba(255,255,255,.92);font-size:11.5px;line-height:1;font-variant-numeric:tabular-nums;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);pointer-events:none;opacity:1;transition:opacity .25s ease,background .25s ease}@media(hover:hover){.photo-views{opacity:0}.travel-photo:hover .photo-views{opacity:1;background:rgba(0,0,0,.55)}}.travel-notes{margin-top:34px;padding-top:26px;border-top:1px solid var(--border);color:var(--text-2);font-size:15.5px}.empty-hint{padding:70px 20px;text-align:center;color:var(--text-3);border:1px dashed var(--border-strong);border-radius:var(--radius-lg)}.empty-hint code{background:var(--bg-tinted);border-radius:6px;padding:2px 7px;font-size:13px}.hero-video{position:relative;height:100vh;height:100dvh;min-height:640px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#050507;padding-top:0;padding-bottom:0;cursor:pointer}.hero-video:active{cursor:pointer}.hero-video .hero-video-bg{position:absolute;inset:0;z-index:0}.hero-video .hero-video-bg video{position:absolute;top:50%;left:50%;min-width:100%;min-height:100%;width:auto;height:auto;transform:translate(-50%,-50%);object-fit:cover}.hero-video .hero-overlay{position:absolute;inset:0;z-index:1;background:radial-gradient(ellipse at 50% 35%,rgba(0,0,0,.1) 0%,rgba(0,0,0,.55) 100%);pointer-events:none}.hero-video .hero-fade-transition{position:absolute;bottom:0;left:0;right:0;height:45%;z-index:5;background:linear-gradient(to bottom,transparent 0%,rgba(5,5,7,.6) 50%,#050507 100%);pointer-events:none}.hero-video+.section,.hero-video+*+.section{padding-top:80px}.hero-video .hero-center{position:relative;z-index:10;text-align:center;padding:0 24px;padding-top:var(--header-h,52px);max-width:900px}.hero-video .hero-avatar{width:96px;height:96px;border-radius:50%;overflow:hidden;margin:0 auto 28px;box-shadow:0 8px 32px rgba(0,0,0,.4),0 0 0 2px rgba(255,255,255,.12);position:relative;opacity:0;transform:translateY(16px)scale(.92);animation:hero-video-in 1.4s cubic-bezier(.16,1,.3,1).25s forwards}.hero-video .hero-avatar::before{content:"";position:absolute;top:-8px;left:-8px;right:-8px;bottom:-8px;border-radius:50%;border:1px solid rgba(255,255,255,.25);box-shadow:0 0 40px rgba(120,180,255,.3),0 0 80px rgba(180,140,255,.15);animation:hero-avatar-glow 4s ease-in-out infinite alternate;pointer-events:none;z-index:2}.hero-video .hero-avatar::after{content:"";position:absolute;top:-16px;left:-16px;right:-16px;bottom:-16px;border-radius:50%;border:1px solid rgba(255,255,255,8%);animation:hero-avatar-glow 4s ease-in-out 1s infinite alternate;pointer-events:none;z-index:1}.hero-video .hero-avatar img{width:100%;height:100%;object-fit:cover;position:relative;z-index:3}@keyframes hero-avatar-glow{0%{opacity:.5;transform:scale(1);box-shadow:0 0 30px rgba(120,180,255,.25),0 0 60px rgba(180,140,255,.1)}100%{opacity:1;transform:scale(1.05);box-shadow:0 0 50px rgba(120,180,255,.4),0 0 100px rgba(180,140,255,.2)}}.hero-video .hero-title-video{font-size:clamp(30px,5vw,52px);font-weight:300;letter-spacing:-.01em;line-height:1.3;color:#fff;margin:0 0 36px;opacity:0;transform:translateY(24px);animation:hero-video-in 1.4s cubic-bezier(.16,1,.3,1).45s forwards;font-family:new york,sf pro display,-apple-system,BlinkMacSystemFont,pingfang sc,noto serif sc,source han serif sc,songti sc,stsong,Georgia,times new roman,serif}.hero-video .hero-title-video .gradient-text{background:linear-gradient(180deg,#ffffff 0%,rgba(255,255,255,.75) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero-video .hero-title-wrap{position:relative;margin:36px 0 76px;display:flex;justify-content:center}.hero-video .hero-title-wrap::before,.hero-video .hero-title-wrap::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)scale(.3);border-radius:50%;pointer-events:none;opacity:0}.hero-video .hero-title-wrap::before{width:200%;height:200%;background:radial-gradient(circle,rgba(99,180,255,.12) 0%,transparent 60%);animation:hero-ripple-out 2s cubic-bezier(.16,1,.3,1).25s both}.hero-video .hero-title-wrap::after{width:150%;height:150%;background:radial-gradient(circle,rgba(140,200,255,.18) 0%,transparent 55%);animation:hero-ripple-out 2s cubic-bezier(.16,1,.3,1).45s both}.hero-video .hero-title-img{font-size:0;line-height:0;margin:0;animation:none;opacity:1;transform:none}.hero-video .hero-title-img img{width:min(500px,76vw);max-width:100%;height:auto;filter:drop-shadow(0 4px 24px rgba(0,0,0,.4));animation:titleZoom 1.4s cubic-bezier(.16,1,.3,1).2s both;display:block}@keyframes titleZoom{from{opacity:0;transform:scale(1.12)}to{opacity:1;transform:scale(1)}}@keyframes hero-title-blur-in{0%{opacity:0;filter:drop-shadow(0 4px 24px rgba(0,0,0,.4))blur(20px);transform:scale(1.08)}60%{opacity:1;filter:drop-shadow(0 4px 24px rgba(0,0,0,.4))blur(2px);transform:scale(1.01)}100%{opacity:1;filter:drop-shadow(0 4px 24px rgba(0,0,0,.4))blur(0);transform:scale(1)}}@keyframes hero-ripple-out{0%{opacity:0;transform:translate(-50%,-50%)scale(.3)}30%{opacity:1}100%{opacity:0;transform:translate(-50%,-50%)scale(1.2)}}.hero-video .hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:0;opacity:0;transform:translateY(16px);animation:hero-video-in 1.4s cubic-bezier(.16,1,.3,1).65s forwards}.hero-video .btn-hero{padding:14px 30px;font-size:15px;font-weight:500;letter-spacing:.01em;border-radius:980px;transition:all .3s cubic-bezier(.25,.1,.25,1)}.hero-video .btn-hero.btn-primary{background:#fff;color:#000;border:none}.hero-video .btn-hero.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(255,255,255,.25)}.hero-video .btn-hero.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.2);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.hero-video .btn-hero.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}@keyframes hero-video-in{to{opacity:1;transform:translateY(0)scale(1)}}.hero-video .scroll-hint{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:10;display:flex;flex-direction:column;align-items:center;gap:6px;color:rgba(255,255,255,.35);font-size:11px;letter-spacing:.25em;text-transform:uppercase;opacity:0;animation:hero-video-in 1s ease 1s forwards,hero-scroll-bounce 2.5s ease-in-out 2s infinite}@keyframes hero-scroll-bounce{0%,100%{transform:translateX(-50%)translateY(0)}50%{transform:translateX(-50%)translateY(6px)}}body:has(.hero-video) .site-header{background:rgba(255,255,255,.72);border-bottom-color:rgba(0,0,0,6%);-webkit-backdrop-filter:saturate(180%)blur(24px);backdrop-filter:saturate(180%)blur(24px)}[data-theme=dark] body:has(.hero-video) .site-header{background:rgba(10,10,10,.6);border-bottom-color:rgba(255,255,255,6%)}body:has(.hero-video) .site-header.scrolled{background:var(--bg-glass);border-bottom-color:var(--border)}body:has(.hero-video) .site-header .brand-name{color:#0a0a0a;font-weight:600}[data-theme=dark] body:has(.hero-video) .site-header .brand-name{color:#fff}body:has(.hero-video) .site-header.scrolled .brand-name{color:var(--text);font-weight:600}body:has(.hero-video) .site-header .nav-link{color:rgba(0,0,0,.75);font-weight:500}body:has(.hero-video) .site-header .nav-link:hover,body:has(.hero-video) .site-header .nav-link.active{color:#0a0a0a;background:rgba(0,0,0,6%)}[data-theme=dark] body:has(.hero-video) .site-header .nav-link{color:rgba(255,255,255,.82)}[data-theme=dark] body:has(.hero-video) .site-header .nav-link:hover,[data-theme=dark] body:has(.hero-video) .site-header .nav-link.active{color:#fff;background:rgba(255,255,255,.12)}body:has(.hero-video) .site-header.scrolled .nav-link{color:var(--text-2);font-weight:400}body:has(.hero-video) .site-header.scrolled .nav-link:hover,body:has(.hero-video) .site-header.scrolled .nav-link.active{color:var(--text);background:var(--bg-tinted)}body:has(.hero-video) .site-header .icon-btn{color:#0a0a0a;background:rgba(0,0,0,5%);border-color:rgba(0,0,0,8%)}body:has(.hero-video) .site-header .icon-btn:hover{color:#0a0a0a;background:rgba(0,0,0,.1)}[data-theme=dark] body:has(.hero-video) .site-header .icon-btn{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.14)}[data-theme=dark] body:has(.hero-video) .site-header .icon-btn:hover{color:#fff;background:rgba(255,255,255,.18)}body:has(.hero-video) .site-header.scrolled .icon-btn{color:var(--text-2);background:var(--bg-elevated);border-color:var(--border)}body:has(.hero-video) .site-header.scrolled .icon-btn:hover{color:var(--text)}@media(max-width:520px){.hero-video{min-height:100vh;min-height:100dvh}.hero-video .hero-avatar{width:84px;height:84px}.hero-video .btn-hero{padding:11px 20px;font-size:14px}}.search-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000;background:rgba(0,0,0,.45);-webkit-backdrop-filter:saturate(180%)blur(24px);backdrop-filter:saturate(180%)blur(24px);opacity:0;visibility:hidden;transition:opacity .35s ease,visibility .35s ease}.search-overlay.open{opacity:1;visibility:visible}.search-overlay-inner{width:100%;height:100%;display:flex;align-items:flex-start;justify-content:center;padding-top:18vh}.search-modal{width:min(640px,90vw);opacity:0;transform:translateY(-12px)scale(.98);transition:opacity .35s ease,transform .35s cubic-bezier(.25,.46,.45,.94)}.search-overlay.open .search-modal{opacity:1;transform:translateY(0)scale(1)}.search-modal-input-wrap{display:flex;align-items:center;gap:14px;padding:16px 20px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-lg);margin-bottom:16px}.search-modal-icon{color:var(--text-2);flex-shrink:0}.search-modal-input{flex:1;border:none;outline:none;background:0 0;font-size:17px;font-weight:400;color:var(--text);font-family:inherit}.search-modal-input::placeholder{color:var(--text-3)}.search-modal-close{width:28px;height:28px;border-radius:50%;border:none;background:var(--mist);color:var(--text-2);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .2s ease,color .2s ease}.search-modal-close:hover{background:var(--border);color:var(--text)}.search-modal-results{max-height:50vh;overflow-y:auto;background:var(--bg-elevated);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-lg);padding:8px;display:none}.search-modal-results.has-results{display:block}.search-modal-results::-webkit-scrollbar{width:6px}.search-modal-results::-webkit-scrollbar-track{background:0 0}.search-modal-results::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.search-result-item{display:block;padding:14px 16px;border-radius:10px;color:var(--text);text-decoration:none;transition:background .15s ease}.search-result-item:hover{background:var(--mist)}.search-result-item-meta{font-size:12px;color:var(--text-3);margin-bottom:6px;display:flex;gap:10px}.search-result-item-meta span{display:inline-flex;align-items:center}.search-result-item-meta span:first-child{color:var(--blue);font-weight:500}.search-result-item-title{font-size:15px;font-weight:500;line-height:1.4;margin-bottom:4px}.search-result-item-title mark{background:0 0;color:var(--blue);font-weight:600}.search-result-item-summary{font-size:13px;color:var(--text-2);line-height:1.5;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.search-result-item-summary mark{background:0 0;color:var(--blue)}.search-modal-hint{text-align:center;color:rgba(255,255,255,.5);font-size:13px;margin-top:16px}html[data-theme=light] .search-modal-hint{color:rgba(0,0,0,.4)}.nav-drawer-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.35);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);opacity:0;visibility:hidden;transition:opacity .4s cubic-bezier(.25,.46,.45,.94),visibility .4s cubic-bezier(.25,.46,.45,.94);z-index:998}.nav-drawer-overlay.open{opacity:1;visibility:visible}.nav-drawer{position:fixed;top:0;right:0;width:min(380px,85vw);height:100vh;background:var(--bg-glass);-webkit-backdrop-filter:saturate(180%)blur(30px);backdrop-filter:saturate(180%)blur(30px);border-left:1px solid var(--border);transform:translateX(100%);transition:transform .5s cubic-bezier(.25,.46,.45,.94);z-index:999;overflow-y:auto;overflow-x:hidden}.nav-drawer.open{transform:translateX(0)}.nav-drawer-inner{display:flex;flex-direction:column;min-height:100%;padding:24px 24px 32px}.nav-drawer-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:24px;border-bottom:1px solid var(--border);margin-bottom:16px}.nav-drawer-header .brand{gap:10px}.nav-drawer-header .brand-name{font-size:16px;font-weight:600}.nav-drawer-close{width:36px;height:36px;border-radius:50%;background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-2)}.nav-drawer-close:hover{color:var(--text);background:var(--bg-tinted)}.nav-drawer-links{display:flex;flex-direction:column;gap:2px;flex:1}.nav-drawer-link{display:flex;align-items:center;justify-content:space-between;padding:16px 14px;border-radius:12px;color:var(--text);font-size:16px;font-weight:500;transition:background .2s,transform .2s;opacity:0;transform:translateX(20px)}.nav-drawer.open .nav-drawer-link{opacity:1;transform:translateX(0)}.nav-drawer.open .nav-drawer-link:nth-child(1){transition-delay:.08s}.nav-drawer.open .nav-drawer-link:nth-child(2){transition-delay:.12s}.nav-drawer.open .nav-drawer-link:nth-child(3){transition-delay:.16s}.nav-drawer.open .nav-drawer-link:nth-child(4){transition-delay:.2s}.nav-drawer.open .nav-drawer-link:nth-child(5){transition-delay:.24s}.nav-drawer.open .nav-drawer-link:nth-child(6){transition-delay:.28s}.nav-drawer.open .nav-drawer-link:nth-child(7){transition-delay:.32s}.nav-drawer.open .nav-drawer-link:nth-child(8){transition-delay:.36s}.nav-drawer-link:hover{background:var(--bg-tinted)}.nav-drawer-link.active{background:var(--bg-tinted);color:var(--text)}.nav-drawer-link.active .nav-drawer-arrow{opacity:1;transform:translateX(0)}.nav-drawer-arrow{opacity:.4;transform:translateX(-4px);transition:opacity .2s,transform .2s}.nav-drawer-link:hover .nav-drawer-arrow{opacity:1;transform:translateX(2px)}.nav-drawer-footer{display:flex;align-items:center;justify-content:center;gap:16px;padding-top:24px;border-top:1px solid var(--border);margin-top:16px}.nav-drawer-social{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;color:var(--text-2);background:var(--bg-elevated);border:1px solid var(--border);transition:background .2s,color .2s,transform .2s}.nav-drawer-social:hover{color:var(--text);background:var(--bg-tinted);transform:translateY(-2px)}@media(max-width:980px){.site-nav{display:none}.nav-toggle{display:inline-flex}}body.drawer-open{overflow:hidden}@media(max-width:520px){.nav-drawer{width:88vw}.nav-drawer-inner{padding:20px 18px 28px}.nav-drawer-link{padding:14px 12px;font-size:15px}}