/* ============================================================
   YLMUN 2027 — official site
   Design language: large type, generous whitespace, frosted glass,
   restrained palette, soft motion.
   ============================================================ */

:root{
  --ink:#1d1d1f;
  --ink-soft:#3a3a3f;
  --muted:#6e6e73;
  --muted-light:#a1a1a6;
  --tint:#f5f5f7;
  --tint-2:#fafafc;
  --line:rgba(0,0,0,.08);
  --white:#fff;
  --navy:#0b1026;
  --navy-2:#111a3d;
  --blue:#16307f;
  --blue-light:#3b5bd9;
  --gold:#d3ae72;
  --gold-light:#edcf9a;
  --radius:22px;
  --radius-lg:30px;
  --shadow-sm:0 2px 12px rgba(0,0,0,.04);
  --shadow:0 18px 50px rgba(20,25,60,.09);
  --shadow-lg:0 30px 80px rgba(10,16,45,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue","Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--white);color:var(--ink);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body.modal-open{overflow:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(211,174,114,.32)}

.container{width:min(var(--maxw),calc(100% - 64px));margin-inline:auto}
.section{position:relative;padding:132px 0}
.section-white{background:var(--white)}
.section-tint{background:var(--tint)}
.section-dark{background:var(--navy);color:#fff}

/* ---------- Shared typography ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin-bottom:26px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}
.eyebrow-light{color:var(--gold-light)}
.display{font-size:clamp(32px,4vw,56px);line-height:1.22;letter-spacing:-.035em;font-weight:700;max-width:1120px}
.display>span{display:block;text-wrap:balance}
.display-sm{font-size:clamp(30px,3.5vw,50px)}
html[lang="en"] .display{font-size:clamp(30px,3.6vw,50px)}
.display-light{color:#fff}
.text-gradient{background:linear-gradient(100deg,var(--blue) 0%,#4b6ee0 52%,#8b74d8 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.text-gradient-gold{background:linear-gradient(100deg,#f4ddb0,#d3ae72 55%,#f0d6a4);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(16px,1.35vw,20px);line-height:1.75;color:var(--muted);max-width:760px;margin-top:28px}
.lead-light{color:rgba(255,255,255,.72)}
.section-head{margin-bottom:64px}
.card-tag{font-size:11px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.fine-print{font-size:13px;color:var(--muted-light);margin-top:30px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 28px;border-radius:999px;font-size:15px;font-weight:600;letter-spacing:.01em;transition:transform .35s var(--ease),background .3s,box-shadow .35s var(--ease),opacity .3s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-sm{padding:9px 20px;font-size:13px}
.btn-lg{padding:17px 34px;font-size:16px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 24px rgba(22,48,127,.22)}
.btn-primary:hover{background:#1e3ea0;box-shadow:0 14px 32px rgba(22,48,127,.3)}
.btn-gold{background:linear-gradient(135deg,#f0d8ab,#cf9f5f);color:#1b170f;box-shadow:0 12px 34px rgba(0,0,0,.22)}
.btn-gold:hover{box-shadow:0 18px 42px rgba(0,0,0,.3)}
.btn-ghost{background:rgba(255,255,255,.09);color:#fff;border:1px solid rgba(255,255,255,.42);backdrop-filter:blur(12px)}
.btn-ghost:hover{background:rgba(255,255,255,.17);border-color:rgba(255,255,255,.7)}
.btn-outline{background:transparent;color:var(--blue);border:1.5px solid rgba(22,48,127,.3)}
.btn-outline:hover{background:rgba(22,48,127,.05);border-color:var(--blue)}
.btn-block{width:100%;margin-top:12px}
.btn-arrow{font-size:17px;line-height:1;transition:transform .3s var(--ease)}
.btn:hover .btn-arrow{transform:translate(3px,-3px)}

/* ---------- Navigation ---------- */
.site-nav{position:fixed;inset:0 0 auto;z-index:100;height:64px;background:rgba(255,255,255,.72);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.site-nav.is-scrolled{border-bottom-color:var(--line);background:rgba(255,255,255,.86)}
.nav-inner{width:min(1440px,calc(100% - 48px));height:100%;margin-inline:auto;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark-img{width:34px;height:34px;object-fit:contain;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;letter-spacing:.02em;font-weight:700}
.brand-text small{font-size:10px;color:var(--muted);letter-spacing:.06em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{font-size:13px;color:var(--ink-soft);font-weight:500;transition:color .25s;position:relative;padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1.5px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav-links a:hover{color:var(--blue)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.lang-toggle{font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--ink-soft);border:1px solid var(--line);border-radius:999px;padding:7px 13px;transition:.25s}
.lang-toggle:hover{border-color:var(--blue);color:var(--blue)}
.nav-docs{font-size:13px;color:var(--ink-soft);padding:9px 4px;transition:color .25s}
.nav-docs:hover{color:var(--blue)}
.nav-menu{display:none;width:34px;height:34px;flex-direction:column;justify-content:center;gap:6px;padding:0 6px}
.nav-menu span{display:block;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease)}
.nav-menu[aria-expanded="true"] span:first-child{transform:translateY(3.8px) rotate(45deg)}
.nav-menu[aria-expanded="true"] span:last-child{transform:translateY(-3.8px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:min(920px,100svh);display:flex;align-items:center;overflow:hidden;background:#05070d}
.hero-media{position:absolute;inset:0;z-index:0;background:#05070d}
.hero-media picture{display:block;width:100%;height:100%}
.hero-media img{display:block;width:100%;height:100%;object-fit:contain;object-position:center;animation:heroFade 1.1s ease-out both}
@keyframes heroFade{from{opacity:.6}to{opacity:1}}
.hero-scrim{position:absolute;inset:0;z-index:1;background:radial-gradient(ellipse 68% 32% at 32% 43%,rgba(4,7,18,.66) 0%,rgba(4,7,18,.38) 60%,transparent 100%),radial-gradient(ellipse 66% 86% at 25% 50%,rgba(4,7,18,.78) 0%,rgba(4,7,18,.54) 46%,rgba(5,9,24,.16) 78%,transparent 100%),linear-gradient(90deg,rgba(4,7,18,.58) 0%,rgba(5,9,24,.3) 42%,transparent 78%),linear-gradient(0deg,rgba(4,7,18,.38),transparent 46%)}
.hero-inner{position:relative;z-index:2;padding-top:90px;padding-bottom:100px;width:min(var(--maxw),calc(100% - 64px))}
.hero-content{max-width:1100px}
.hero-logo{display:block;width:clamp(150px,16vw,230px);height:auto;margin-bottom:34px;filter:drop-shadow(0 4px 18px rgba(0,0,0,.35))}
.hero-title{font-size:clamp(42px,5.6vw,76px);line-height:1.12;letter-spacing:-.05em;font-weight:700;color:#fff;max-width:16em;text-wrap:balance}
.hero-subtitle{margin-top:26px;font-size:clamp(17px,1.8vw,24px);color:rgba(255,255,255,.86);font-weight:500;letter-spacing:.01em}
.hero-meta{margin-top:14px;font-size:clamp(13px,1.1vw,15px);color:rgba(255,255,255,.62);letter-spacing:.03em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:44px}
.hero-note{margin-top:20px;font-size:12px;color:rgba(255,255,255,.5);letter-spacing:.08em}
.hero-scroll{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:10px;font-size:11px;letter-spacing:.16em;color:rgba(255,255,255,.6);text-transform:uppercase}
.scroll-line{width:1px;height:44px;background:linear-gradient(rgba(255,255,255,.7),transparent);position:relative;overflow:hidden}
.scroll-line::after{content:"";position:absolute;top:-40%;left:0;width:1px;height:40%;background:#fff;animation:scrollDot 2.2s infinite}
@keyframes scrollDot{to{top:110%}}

/* ---------- Stat strip ---------- */
.stat-strip{background:var(--white);border-bottom:1px solid var(--line);padding:56px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{display:flex;flex-direction:column;gap:6px;padding:0 32px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-size:clamp(38px,4vw,56px);font-weight:700;letter-spacing:-.055em;line-height:1;color:var(--blue);font-variant-numeric:tabular-nums}
.stat-num-text{font-size:clamp(34px,3.6vw,50px)}
.stat-label{font-size:13px;color:var(--muted)}

/* ---------- Number hover: scale + sparkle ---------- */
.stat-num,.legacy-stats strong{position:relative;display:inline-block;align-self:flex-start;transform-origin:left center;cursor:default;isolation:isolate;will-change:transform;transition:transform .45s cubic-bezier(.2,.9,.28,1.28),color .4s,text-shadow .4s}
/* 扫过数字的一道高光 */
.stat-num::after,.legacy-stats strong::after{content:"";position:absolute;top:-14%;left:-60%;width:46%;height:128%;pointer-events:none;opacity:0;transform:skewX(-22deg);background:linear-gradient(90deg,transparent,rgba(255,255,255,.28) 35%,rgba(255,255,255,.95) 50%,rgba(255,255,255,.28) 65%,transparent);mix-blend-mode:screen;filter:blur(1px)}
/* 数字背后的柔光晕 */
.stat-num::before,.legacy-stats strong::before{content:"";position:absolute;left:50%;top:50%;width:150%;height:190%;z-index:-1;pointer-events:none;opacity:0;transform:translate(-50%,-50%) scale(.45);background:radial-gradient(ellipse at center,rgba(255,214,130,.42) 0%,rgba(255,197,92,.16) 42%,transparent 70%);transition:opacity .45s var(--ease),transform .55s var(--ease)}
@keyframes numSweep{0%{left:-60%;opacity:0}12%{opacity:1}72%{opacity:1}100%{left:130%;opacity:0}}
@keyframes numFlash{0%{filter:brightness(1)}28%{filter:brightness(1.75) drop-shadow(0 0 12px rgba(255,240,200,.95))}58%{filter:brightness(1.1)}78%{filter:brightness(1.45) drop-shadow(0 0 9px rgba(255,215,140,.85))}100%{filter:brightness(1)}}
.stat:hover .stat-num,.stat-num:hover{transform:scale(1.2) translateY(-4px);color:#a9761f;text-shadow:0 0 14px rgba(214,164,66,.6),0 0 34px rgba(214,164,66,.34);animation:numFlash .95s ease-out}
.legacy-stats div:hover strong,.legacy-stats strong:hover{transform:scale(1.2) translateY(-4px);color:#fff;text-shadow:0 0 16px rgba(255,226,158,.9),0 0 38px rgba(255,190,90,.55);animation:numFlash .95s ease-out}
.stat:hover .stat-num::after,.stat-num:hover::after,.legacy-stats div:hover strong::after,.legacy-stats strong:hover::after{animation:numSweep .85s ease-out}
.stat:hover .stat-num::before,.stat-num:hover::before,.legacy-stats div:hover strong::before,.legacy-stats strong:hover::before{opacity:1;transform:translate(-50%,-50%) scale(1)}
.stat-label,.legacy-stats span{transition:color .4s}
.stat:hover .stat-label{color:var(--ink)}
.legacy-stats div:hover span{color:rgba(255,255,255,.85)}
@media (hover:none){
  .stat-num:active,.legacy-stats strong:active{transform:scale(1.16);color:#a9761f;text-shadow:0 0 14px rgba(214,164,66,.6)}
}

/* ---------- Feature cards ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{background:var(--tint-2);border:1px solid var(--line);border-radius:var(--radius);padding:38px 34px 42px;transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(22,48,127,.16)}
.feature-icon{width:46px;height:46px;border-radius:14px;background:rgba(22,48,127,.07);color:var(--blue);display:grid;place-items:center;margin-bottom:28px}
.feature-icon svg{width:23px;height:23px}
.feature-card h3{font-size:21px;line-height:1.4;letter-spacing:-.02em;font-weight:650;margin-bottom:14px}
.feature-card p:last-child{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- Legacy ---------- */
.legacy{position:relative;overflow:hidden;background:var(--navy);padding:120px 0;color:#fff}
.legacy-bg{position:absolute;inset:0;opacity:.28}
.legacy-bg img{width:100%;height:100%;object-fit:cover}
.legacy-scrim{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,13,35,.96),rgba(8,13,35,.72) 60%,rgba(8,13,35,.55))}
.legacy-inner{position:relative;z-index:1}
.legacy-copy{max-width:820px}
.legacy-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:72px;border-top:1px solid rgba(255,255,255,.16);padding-top:36px}
.legacy-stats div{display:flex;flex-direction:column;gap:6px}
.legacy-stats strong{font-size:clamp(36px,4vw,54px);font-weight:700;letter-spacing:-.05em;line-height:1;color:var(--gold-light);font-variant-numeric:tabular-nums}
.legacy-stats span{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.55);text-transform:uppercase}

/* ---------- Next stop ---------- */
.next-stop{position:relative;overflow:hidden;padding:120px 0;background:var(--navy-2);color:#fff}
.next-bg{position:absolute;inset:0;opacity:.55}
.next-bg img{width:100%;height:100%;object-fit:cover;object-position:center 56%}
.next-scrim{position:absolute;inset:0;background:linear-gradient(100deg,rgba(7,12,30,.95) 0%,rgba(8,14,36,.74) 38%,rgba(9,15,38,.28) 100%)}
.next-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:72px;align-items:center}
.next-stop .eyebrow{color:var(--gold-light)}
.next-stop .display{color:#fff}
.next-stop .lead{color:rgba(255,255,255,.88)}
.org-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.org-grid span{border:1px solid rgba(255,255,255,.2);border-radius:14px;padding:22px 18px;font-size:13px;font-weight:600;color:#fff;background:rgba(8,13,34,.72);backdrop-filter:blur(8px);text-align:center;transition:.35s var(--ease)}
.org-grid span:hover{border-color:var(--gold);color:var(--gold-light);background:rgba(12,20,50,.85);transform:translateY(-3px)}

/* ---------- Why Chiang Mai ---------- */
.cm-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:start}
.cm-image{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);align-self:stretch;min-height:560px}
.cm-image img{width:100%;height:100%;object-fit:cover;min-height:560px}
.cm-quote{position:absolute;left:0;right:0;bottom:0;padding:70px 30px 30px;background:linear-gradient(transparent,rgba(6,11,30,.86));color:#fff;font-size:18px;font-weight:600;letter-spacing:.02em}
.cm-reasons{display:flex;flex-direction:column}
.reason{display:grid;grid-template-columns:52px 1fr;gap:18px;padding:24px 0;border-bottom:1px solid var(--line)}
.reason:first-child{padding-top:0}
.reason-no{font-size:13px;font-weight:700;color:var(--blue);letter-spacing:.08em;padding-top:4px}
.reason h3{font-size:19px;font-weight:650;letter-spacing:-.015em;margin-bottom:6px}
.reason p{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- Highlights ---------- */
.hl-layout{display:grid;grid-template-columns:minmax(300px,.85fr) 1.15fr;gap:48px;align-items:start}
.hl-tabs{display:flex;flex-direction:column;border-top:1px solid rgba(255,255,255,.14)}
.hl-tab{display:grid;grid-template-columns:38px 1fr 22px;gap:14px;align-items:center;text-align:left;padding:24px 8px;border-bottom:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.5);transition:color .35s,padding .35s var(--ease)}
.hl-tab-no{font-size:12px;font-weight:700;letter-spacing:.1em}
.hl-tab-title{font-size:17px;font-weight:600;line-height:1.45;letter-spacing:-.01em}
.hl-tab-arrow{opacity:0;transform:translateX(-8px);transition:.35s var(--ease);font-size:18px}
.hl-tab:hover{color:rgba(255,255,255,.85)}
.hl-tab.is-active{color:#fff;padding-left:18px}
.hl-tab.is-active .hl-tab-no{color:var(--gold-light)}
.hl-tab.is-active .hl-tab-arrow{opacity:1;transform:translateX(0);color:var(--gold-light)}
.hl-tab.is-active .hl-tab-title{font-weight:700}
.hl-stage{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 30px 70px rgba(0,0,0,.25)}
.hl-stage-media{position:relative;height:340px;overflow:hidden;background:#0e1634}
.hl-stage-media img{width:100%;height:100%;object-fit:cover;transition:opacity .45s var(--ease),transform .8s var(--ease)}
.hl-stage-media img.is-fading{opacity:0}
.hl-stage-no{position:absolute;right:22px;top:18px;font-size:11px;letter-spacing:.14em;color:#fff;background:rgba(8,13,35,.55);backdrop-filter:blur(10px);padding:7px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.2)}
.hl-stage-copy{padding:36px 38px 42px}
.hl-stage-copy h3{font-size:clamp(23px,2.2vw,31px);font-weight:700;letter-spacing:-.025em;line-height:1.3;margin-bottom:16px}
.hl-stage-copy>p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.68);margin-bottom:24px}
.hl-points li{position:relative;padding:9px 0 9px 24px;font-size:14px;color:rgba(255,255,255,.82);border-top:1px solid rgba(255,255,255,.09)}
.hl-points li::before{content:"";position:absolute;left:2px;top:18px;width:6px;height:6px;border-radius:50%;background:var(--gold)}

/* ---------- Committees ---------- */
.com-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.com-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:36px 32px 38px;box-shadow:var(--shadow-sm);transition:.45s var(--ease);display:flex;flex-direction:column}
.com-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(22,48,127,.2)}
.com-org{display:inline-block;align-self:flex-start;background:linear-gradient(135deg,#16307f,#2a4bb8);color:#fff;font-size:14px;font-weight:800;letter-spacing:.08em;padding:8px 16px;border-radius:9px;margin-bottom:26px}
.com-card h3{font-size:20px;font-weight:650;line-height:1.45;letter-spacing:-.015em;min-height:58px}
.com-age{font-size:13px;color:var(--blue);font-weight:600;margin-top:6px}
.com-topics{margin-top:28px;padding-top:22px;border-top:1px solid var(--line);flex:1}
.com-topics>span{font-size:10px;font-weight:700;letter-spacing:.18em;color:var(--muted-light)}
.com-topics ul{margin-top:14px;display:flex;flex-direction:column;gap:12px}
.com-topics li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-soft);line-height:1.6}
.com-topics li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;background:var(--gold)}

/* ---------- Schedule ---------- */
.schedule-list{display:flex;flex-direction:column;gap:14px}
.day{display:grid;grid-template-columns:150px 1fr;gap:32px;align-items:start;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px 34px;transition:.4s var(--ease)}
.day:hover{box-shadow:var(--shadow);transform:translateX(4px)}
.day-badge{display:flex;flex-direction:column;gap:4px;border-right:1px solid var(--line)}
.day-badge strong{font-size:30px;font-weight:700;letter-spacing:-.04em;color:var(--blue);line-height:1.1}
.day-badge span{font-size:12px;color:var(--muted)}
.day-body h3{font-size:20px;font-weight:650;margin-bottom:8px;letter-spacing:-.015em}
.day-body p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- Awards ---------- */
.awards-grid{display:grid;grid-template-columns:1fr 1fr 1.05fr;gap:26px;align-items:stretch}
.award-col{background:var(--tint);border-radius:var(--radius);padding:34px 32px}
.award-list li{font-size:16px;font-weight:550;padding:13px 0;border-bottom:1px solid var(--line);position:relative;padding-left:26px}
.award-list li:last-child{border-bottom:0}
.award-list li::before{content:"✦";position:absolute;left:0;top:13px;color:var(--gold);font-size:13px}
.award-photo{border-radius:var(--radius);overflow:hidden;min-height:260px}
.award-photo img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease)}
.award-photo:hover img{transform:scale(1.05)}

/* ---------- Letter ---------- */
.letter{position:relative;padding:126px 0;background:var(--navy-2);color:#fff;overflow:hidden}
.letter-bg{position:absolute;inset:0;opacity:.2}
.letter-bg img{width:100%;height:100%;object-fit:cover}
.letter-scrim{position:absolute;inset:0;background:linear-gradient(120deg,rgba(9,15,40,.97),rgba(9,15,40,.82))}
.letter-inner{position:relative;z-index:1;max-width:1100px}
.letter-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-top:44px}
.letter-cols p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.7);padding-top:20px;border-top:1px solid rgba(255,255,255,.18)}
.letter-sign{margin-top:48px;font-size:12px;letter-spacing:.14em;color:var(--gold-light);text-transform:uppercase}

/* ---------- Fees ---------- */
.fee-layout{display:grid;grid-template-columns:380px 1fr;gap:40px;align-items:start}
.price-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px 34px;box-shadow:var(--shadow);position:sticky;top:92px}
.price-top{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.price{font-size:clamp(40px,4vw,54px);font-weight:700;letter-spacing:-.05em;color:var(--blue);line-height:1}
.price-unit{font-size:15px;color:var(--muted)}
.price-notice{font-size:12px;color:var(--muted-light);margin-top:12px}
.price-divider{height:1px;background:var(--line);margin:30px 0}
.deadline{font-size:22px;font-weight:650;letter-spacing:-.02em;margin-bottom:24px}
.fee-detail{display:grid;grid-template-columns:1fr 1fr;gap:28px 40px}
.fee-block h3{font-size:17px;font-weight:650;margin-bottom:18px;letter-spacing:-.01em}
.fee-block:nth-child(3){grid-column:1/-1}
.check-list,.cross-list,.step-list{display:flex;flex-direction:column;gap:11px}
.check-list li,.cross-list li,.step-list li{font-size:14px;color:var(--ink-soft);line-height:1.65;position:relative;padding-left:24px}
.check-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--blue);font-weight:700}
.cross-list li::before{content:"—";position:absolute;left:0;top:0;color:var(--muted-light)}
.step-list{counter-reset:step}
.step-list li{counter-increment:step;padding-left:32px}
.step-list li::before{content:counter(step);position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:50%;background:rgba(22,48,127,.09);color:var(--blue);font-size:11px;font-weight:700;display:grid;place-items:center}

/* ---------- Timeline ---------- */
.timeline-track{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;margin-bottom:76px}
.timeline-track::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:var(--line)}
.tl-item{position:relative;padding-top:34px;padding-right:16px}
.tl-item::before{content:"";position:absolute;left:0;top:4px;width:11px;height:11px;border-radius:50%;background:var(--white);border:2px solid var(--line)}
.tl-item.is-now::before{background:var(--gold);border-color:var(--gold);box-shadow:0 0 0 5px rgba(211,174,114,.18)}
.tl-item span{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--blue)}
.tl-item p{font-size:13.5px;color:var(--ink-soft);margin-top:8px;line-height:1.6}
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;border-top:1px solid var(--line);padding-top:44px}
.safety-grid h3{font-size:20px;font-weight:650;margin-bottom:14px}
.safety-grid p{font-size:14px;color:var(--muted);line-height:1.85}

/* ---------- Final CTA ---------- */
.final-cta{position:relative;padding:140px 0 150px;background:var(--navy);color:#fff;overflow:hidden;text-align:center}
.final-bg{position:absolute;inset:0;opacity:.16;mix-blend-mode:screen}
.final-bg img{width:100%;height:100%;object-fit:cover}
.final-inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center}
.final-inner .display{max-width:900px}
.final-inner .lead{text-align:center;margin-inline:auto}
.final-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:44px}

/* ---------- Footer ---------- */
.site-footer{background:#080c1e;color:rgba(255,255,255,.72);padding:72px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr auto;gap:44px;padding-bottom:52px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;gap:18px;align-items:flex-start}
.footer-logo{width:96px;height:auto;flex-shrink:0;margin-top:2px}
.footer-brand strong{font-size:20px;color:#fff;letter-spacing:.02em}
.footer-brand p{font-size:13px;margin-top:4px}
.footer-brand small{display:block;font-size:11px;color:rgba(255,255,255,.42);margin-top:12px;letter-spacing:.08em}
.footer-col h4{font-size:11px;letter-spacing:.16em;color:rgba(255,255,255,.45);text-transform:uppercase;margin-bottom:20px}
.footer-col p{font-size:13px;line-height:1.8;margin-bottom:16px}
.footer-col p span{color:rgba(255,255,255,.45);font-size:12px}
.footer-col b{color:#fff;font-weight:550;font-size:13.5px}
.footer-qr{text-align:center}
.footer-qr img{width:104px;height:104px;background:#fff;padding:7px;border-radius:12px;margin-bottom:10px}
.footer-qr span{display:block;font-size:11px;color:rgba(255,255,255,.5)}
.footer-bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;padding-top:26px;font-size:12px;color:rgba(255,255,255,.4)}
.footer-bottom small{font-size:11px;opacity:.75}
.footer-bottom a{color:rgba(255,255,255,.6);transition:color .25s}
.footer-bottom a:hover{color:var(--gold-light)}

/* ---------- Floating documents button ---------- */
.docs-fab{position:fixed;right:22px;bottom:22px;z-index:90;display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(20px);border:1px solid rgba(0,0,0,.08);border-radius:999px;padding:10px 20px 10px 11px;box-shadow:0 12px 40px rgba(10,16,45,.2);transition:.4s var(--ease)}
.docs-fab:hover{transform:translateY(-4px);box-shadow:0 18px 48px rgba(10,16,45,.28)}
.fab-icon{width:38px;height:38px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;flex-shrink:0}
.fab-icon svg{width:19px;height:19px}
.fab-text{display:flex;flex-direction:column;text-align:left;line-height:1.3}
.fab-text strong{font-size:13px;font-weight:650;color:var(--ink)}
.fab-text small{font-size:11px;color:var(--muted)}

/* ---------- Documents modal ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.modal.is-open{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(6,10,28,.62);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);animation:fadeIn .3s ease}
.modal-panel{position:relative;z-index:1;width:min(720px,100%);max-height:min(94vh,960px);overflow-y:auto;scrollbar-width:thin;background:#fff;border-radius:28px;box-shadow:0 40px 120px rgba(0,0,0,.35);animation:panelIn .45s var(--ease);padding:38px 44px 30px}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes panelIn{from{opacity:0;transform:translateY(26px) scale(.97)}to{opacity:1;transform:none}}
.modal-close{position:absolute;right:20px;top:18px;width:34px;height:34px;border-radius:50%;background:var(--tint);color:var(--muted);font-size:24px;line-height:1;display:grid;place-items:center;transition:.25s}
.modal-close:hover{background:#e8e8ed;color:var(--ink)}
.modal-head{padding-right:40px}
.modal-head .eyebrow{margin-bottom:10px}
.modal-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.035em;line-height:1.25}
.modal-lead{font-size:14px;color:var(--muted);line-height:1.75;margin-top:12px;max-width:560px}
.netdisk-status{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:11.5px;font-weight:650;letter-spacing:.05em;padding:6px 13px;border-radius:999px;background:rgba(234,180,80,.12);color:#9a6b1e}
.netdisk-status i{width:7px;height:7px;border-radius:50%;background:#e0a94a}
.netdisk-status.is-on{background:rgba(38,150,100,.12);color:#1d7a52}
.netdisk-status.is-on i{background:#29a574;box-shadow:0 0 0 4px rgba(41,165,116,.15)}
.modal-body{margin-top:24px}
.empty-state{border:1.5px dashed rgba(22,48,127,.22);border-radius:20px;padding:30px 28px;background:linear-gradient(135deg,#fafbff,#f5f7ff)}
.empty-state h3{font-size:17px;font-weight:650;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.empty-state h3 span{font-size:20px}
.empty-state p{font-size:13.5px;color:var(--muted);line-height:1.8}
.auto-hint{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:12.5px;color:var(--blue);font-weight:600}
.auto-hint svg{width:16px;height:16px;flex-shrink:0}
.doc-card{display:grid;grid-template-columns:52px 1fr auto;gap:18px;align-items:center;border:1px solid var(--line);border-radius:18px;padding:16px 20px;margin-bottom:10px;background:var(--tint-2);transition:.35s var(--ease)}
.doc-card:hover{border-color:rgba(22,48,127,.25);box-shadow:var(--shadow-sm)}
.doc-icon{width:52px;height:52px;border-radius:14px;background:linear-gradient(145deg,#1b357f,#2a4bb8);color:#fff;display:grid;place-items:center}
.doc-icon svg{width:24px;height:24px}
.doc-info strong{display:block;font-size:16px;font-weight:650;letter-spacing:-.01em}
.doc-info p{font-size:12.5px;color:var(--muted);margin-top:4px;line-height:1.5}
.doc-meta{display:flex;align-items:center;gap:8px;margin-top:9px;flex-wrap:wrap}
.doc-format{font-size:10.5px;font-weight:700;letter-spacing:.06em;color:var(--blue);background:rgba(22,48,127,.07);padding:3px 8px;border-radius:5px}
.doc-code{font-size:11.5px;color:var(--muted)}
.doc-code b{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--ink);letter-spacing:.06em;font-size:12.5px}
.doc-actions{display:flex;flex-direction:column;gap:8px;align-items:stretch}
.btn-mini{padding:9px 16px;border-radius:999px;font-size:12.5px;font-weight:650;background:var(--blue);color:#fff;white-space:nowrap;transition:.3s var(--ease)}
.btn-mini:hover{background:#1e3ea0;transform:translateY(-2px)}
.btn-mini.secondary{background:var(--white);color:var(--blue);border:1px solid rgba(22,48,127,.25)}
.btn-mini.secondary:hover{background:rgba(22,48,127,.05)}
.folder-card{background:linear-gradient(135deg,#12246b,#2a4bb8);color:#fff;border:0;margin-bottom:14px}
.folder-card .doc-icon{background:rgba(255,255,255,.16)}
.folder-card .doc-info p{color:rgba(255,255,255,.68)}
.folder-card .doc-format{background:rgba(255,255,255,.18);color:#fff}
.folder-card .doc-code{color:rgba(255,255,255,.75)}
.folder-card .doc-code b{color:#fff}
.folder-card .btn-mini{background:#fff;color:var(--blue)}
.folder-card .btn-mini.secondary{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35)}
.open-all{width:100%;margin-top:12px;padding:14px;border-radius:14px;background:linear-gradient(135deg,#f0d8ab,#cf9f5f);color:#1b170f;font-size:15px;font-weight:700;transition:.35s var(--ease);display:flex;align-items:center;justify-content:center;gap:10px}
.open-all:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(190,145,80,.35)}
.modal-backup{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.backup-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
.backup-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:16px 8px;border:1px solid var(--line);border-radius:14px;background:var(--tint-2);font-size:12.5px;color:var(--ink-soft);font-weight:550;text-align:center;transition:.3s var(--ease)}
.backup-item:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.backup-ico{font-size:20px;line-height:1;color:var(--blue)}
.backup-qr{margin-top:18px;display:flex;align-items:center;gap:16px;background:var(--tint);border-radius:14px;padding:16px}
.backup-qr[hidden]{display:none}
.backup-qr img{width:96px;height:96px;background:#fff;padding:6px;border-radius:10px}
.backup-qr small{font-size:12px;color:var(--muted);word-break:break-all}
.modal-note{font-size:11.5px;color:var(--muted-light);margin-top:20px;line-height:1.7}

/* ---------- Toast ---------- */
.toast{position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);z-index:300;background:rgba(20,25,45,.94);color:#fff;padding:13px 24px;border-radius:999px;font-size:13.5px;font-weight:550;box-shadow:0 14px 40px rgba(0,0,0,.3);opacity:0;pointer-events:none;transition:.4s var(--ease);backdrop-filter:blur(12px)}
.toast.is-visible{opacity:1;transform:translate(-50%,0)}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.1s}
.reveal[data-delay="2"]{transition-delay:.2s}
.reveal[data-delay="3"]{transition-delay:.3s}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .hero-media img{animation:none;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .nav-links{gap:16px}
  .nav-links a{font-size:12px}
  .nav-docs{display:none}
  .hl-layout{gap:30px}
  .fee-layout{grid-template-columns:330px 1fr;gap:26px}
}
@media (max-width:980px){
  .container,.hero-inner{width:min(var(--maxw),calc(100% - 44px))}
  .site-nav{height:58px}
  .nav-links{position:fixed;top:58px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:rgba(255,255,255,.97);backdrop-filter:blur(20px);padding:8px 22px 20px;border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(0,0,0,.08);transform:translateY(-12px);opacity:0;visibility:hidden;transition:.35s var(--ease);margin:0}
  .nav-links.is-open{transform:none;opacity:1;visibility:visible}
  .nav-links a{font-size:15px;padding:13px 0;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .nav-menu{display:flex}
  .nav-actions .btn-sm{padding:8px 15px;font-size:12px}
  .section{padding:96px 0}
  .hero{min-height:760px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .feature-grid,.com-grid{grid-template-columns:1fr 1fr}
  .feature-grid>*:last-child,.com-grid>*:last-child{grid-column:1/-1}
  .cm-layout,.next-grid,.hl-layout,.fee-layout,.letter-cols,.safety-grid{grid-template-columns:1fr;gap:36px}
  .cm-image,.cm-image img{min-height:400px}
  .hl-stage-media{height:300px}
  .legacy-stats{grid-template-columns:repeat(4,1fr);gap:12px}
  .awards-grid{grid-template-columns:1fr 1fr}
  .award-photo{grid-column:1/-1;min-height:240px}
  .timeline-track{grid-template-columns:repeat(5,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-qr{justify-self:start}
  .price-card{position:static}
  .org-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:640px){
  html{scroll-padding-top:64px}
  .container,.hero-inner{width:calc(100% - 36px)}
  .nav-inner{width:calc(100% - 24px);gap:10px}
  .brand-text small{display:none}
  .nav-actions{gap:6px}
  .nav-actions .btn-sm{display:none}
  .lang-toggle{padding:6px 10px}
  .hero{min-height:700px}
  .hero-inner{padding-top:70px;padding-bottom:90px}
  .hero-title{font-size:clamp(38px,11vw,46px)}
  html[lang="en"] .hero-title{font-size:clamp(28px,7.6vw,34px)}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px;margin-top:34px}
  .hero-actions .btn{width:100%}
  .hero-scrim{background:linear-gradient(180deg,rgba(4,7,18,.4) 0%,rgba(4,7,18,.34) 50%,rgba(4,7,18,.08) 74%,transparent 88%)}
  .hero-logo{width:clamp(128px,38vw,170px);margin-bottom:26px}
  .stat-strip{padding:40px 0}
  .stat{padding:0 16px}
  .stat-num{font-size:36px}
  .section{padding:76px 0}
  .section-head{margin-bottom:42px}
  .display{font-size:clamp(28px,7.4vw,40px)}
  .lead{font-size:15px;margin-top:20px}
  .feature-grid,.com-grid,.fee-detail,.awards-grid,.backup-grid{grid-template-columns:1fr}
  .feature-grid>*:last-child,.com-grid>*:last-child,.fee-block:nth-child(3){grid-column:auto}
  .feature-card,.com-card{padding:28px 24px}
  .com-card h3{min-height:0}
  .legacy{padding:84px 0}
  .legacy-stats{grid-template-columns:repeat(2,1fr);gap:28px 12px;margin-top:48px}
  .next-stop{padding:72px 0}
  .org-grid{grid-template-columns:repeat(2,1fr)}
  .cm-image,.cm-image img{min-height:300px}
  .cm-quote{font-size:15px;padding:50px 20px 22px}
  .reason{grid-template-columns:34px 1fr;gap:12px;padding:20px 0}
  .hl-tabs{border-top:0}
  .hl-tab{padding:16px 4px;grid-template-columns:30px 1fr 16px;gap:10px}
  .hl-tab-title{font-size:14px}
  .hl-tab.is-active{padding-left:10px}
  .hl-stage-media{height:220px}
  .hl-stage-copy{padding:24px 22px 28px}
  .hl-stage-copy h3{font-size:21px}
  .day{grid-template-columns:1fr;gap:14px;padding:22px}
  .day-badge{border-right:0;border-bottom:1px solid var(--line);padding-bottom:12px;flex-direction:row;align-items:baseline;gap:10px}
  .day-badge strong{font-size:24px}
  .letter{padding:84px 0}
  .letter-cols{gap:22px;margin-top:30px}
  .letter-cols p{padding-top:14px}
  .price-card{padding:30px 24px}
  .timeline-track{display:flex;flex-direction:column;gap:0;padding-left:22px;margin-bottom:52px}
  .timeline-track::before{left:5px;right:auto;top:0;bottom:0;width:1px;height:auto}
  .tl-item{padding:0 0 26px 18px}
  .tl-item::before{left:-22px;top:5px}
  .safety-grid{gap:26px;padding-top:32px}
  .final-cta{padding:96px 0 100px}
  .final-actions{flex-direction:column;width:100%}
  .final-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px}
  .site-footer{padding-top:56px}
  .modal{padding:12px;align-items:flex-end}
  .modal-panel{padding:30px 22px 26px;max-height:92vh;border-radius:24px 24px 0 0}
  .modal-head h2{font-size:24px}
  .doc-card{grid-template-columns:44px 1fr;gap:12px;padding:16px}
  .doc-icon{width:44px;height:44px}
  .doc-actions{grid-column:1/-1;flex-direction:row}
  .doc-actions .btn-mini{flex:1;text-align:center}
  .folder-card{grid-template-columns:44px 1fr}
  .backup-grid{grid-template-columns:1fr 1fr 1fr;gap:8px}
  .backup-item{font-size:11px;padding:12px 4px}
  .docs-fab{right:14px;bottom:14px;padding:6px;border-radius:50%}
  .fab-text{display:none}
  .fab-icon{width:42px;height:42px}
  .toast{bottom:82px;font-size:12.5px;max-width:calc(100% - 40px);text-align:center}
}