/* China Visa Atlas — visa-sticker / chop aesthetic
   vermillion · ink · paper · jade · gold */

:root{
  --red:#b91c2b;        /* 朱 */
  --red-deep:#7f1320;
  --ink:#1a1614;        /* 墨 */
  --ink-soft:#3a322c;
  --paper:#f4ede0;      /* 米纸 */
  --paper-2:#ebe1cf;
  --paper-3:#e3d6bd;
  --jade:#2d6a4f;       /* 翠 */
  --jade-soft:#4a8a6a;
  --gold:#b8923a;       /* 描金 */
  --line:rgba(26,22,20,.14);
  --line-strong:rgba(26,22,20,.32);
  --serif:"Cormorant Garamond","Noto Serif SC",Georgia,serif;
  --sans:"Inter","Noto Sans SC",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* paper grain */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.1 0 0 0 0 0.08 0 0 0 0 0.06 0 0 0 .35 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity:.5;mix-blend-mode:multiply;
}

.wrap{max-width:1120px;margin:0 auto;padding:0 28px;position:relative;z-index:1;}
section{position:relative;z-index:1;}

/* ---------- NAV ---------- */
header.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(244,237,224,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-row{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);}
.brand-seal{
  width:38px;height:38px;border-radius:50%;
  background:var(--red);color:var(--paper);
  display:grid;place-items:center;
  font-family:var(--serif);font-size:22px;font-weight:600;
  box-shadow:0 0 0 2px var(--paper),0 0 0 3px var(--red), inset 0 0 0 1px rgba(255,255,255,.18);
  transform:rotate(-4deg);
}
.brand-name{font-family:var(--serif);font-size:20px;font-weight:600;letter-spacing:.2px;}
.brand-name small{display:block;font-family:var(--sans);font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--ink-soft);font-weight:500;}
.nav-actions{display:flex;align-items:center;gap:14px;}

.lang{position:relative;}
.lang-btn{
  display:flex;align-items:center;gap:8px;cursor:pointer;
  background:none;border:1px solid var(--line-strong);border-radius:999px;
  padding:7px 14px;font:inherit;font-size:13px;color:var(--ink);
}
.lang-btn:hover{border-color:var(--ink);}
.lang-menu{
  position:absolute;right:0;top:calc(100% + 8px);
  background:var(--paper);border:1px solid var(--line-strong);
  border-radius:14px;box-shadow:0 12px 40px rgba(0,0,0,.18);
  min-width:180px;padding:6px;display:none;
}
.lang.open .lang-menu{display:block;}
.lang-item{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 12px;border-radius:9px;cursor:pointer;font-size:14px;
}
.lang-item:hover{background:var(--paper-2);}
.lang-item.active{color:var(--red);font-weight:600;}
.lang-item code{font-family:var(--mono);font-size:11px;color:var(--ink-soft);text-transform:uppercase;}

/* ---------- HERO ---------- */
.hero{
  padding:80px 0 56px;position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.25fr .9fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--red);
  font-weight:600;
}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--red);}
.hero h1{
  font-family:var(--serif);font-weight:500;
  font-size:clamp(40px,5.4vw,68px);line-height:1.04;margin:20px 0 18px;
  letter-spacing:-.01em;
}
.hero h1 em{font-style:italic;color:var(--red);}
.hero p.lede{font-size:18px;color:var(--ink-soft);max-width:540px;margin:0 0 30px;}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font:inherit;font-size:15px;font-weight:600;
  padding:14px 24px;border-radius:999px;text-decoration:none;cursor:pointer;
  border:none;transition:transform .15s ease,box-shadow .15s ease;
}
.btn-primary{background:var(--ink);color:var(--paper);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(26,22,20,.28);}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line-strong);}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-2px);}
.btn .arrow{transition:transform .2s;}
.btn:hover .arrow{transform:translateX(4px);}
html[dir=rtl] .btn:hover .arrow{transform:translateX(-4px);}

/* passport booklet mockup */
.passport{
  position:relative;aspect-ratio:1.32/1;border-radius:14px;
  background:linear-gradient(145deg,var(--red-deep),var(--red));
  box-shadow:0 26px 60px -22px rgba(127,19,32,.6),0 2px 0 rgba(255,255,255,.08) inset;
  padding:26px 28px;color:var(--paper);
  display:flex;flex-direction:column;justify-content:space-between;
  overflow:hidden;
  transform:rotate(2.5deg);
}
.passport::before{
  content:"";position:absolute;inset:10px;border:1.5px solid rgba(244,237,224,.5);border-radius:8px;pointer-events:none;
}
.passport::after{
  /* guilloché radial */
  content:"";position:absolute;right:-30px;top:-30px;width:180px;height:180px;border-radius:50%;
  background:repeating-radial-gradient(circle,rgba(244,237,224,.16) 0 2px,transparent 2px 6px);
  pointer-events:none;
}
.passport-top{display:flex;align-items:center;justify-content:space-between;position:relative;z-index:1;}
.passport-stars{font-size:13px;letter-spacing:.3em;opacity:.85;}
.passport-flag{font-size:11px;letter-spacing:.25em;text-transform:uppercase;opacity:.85;}
.passport-title{position:relative;z-index:1;}
.passport-title .zh{font-family:var(--serif);font-size:34px;line-height:1;letter-spacing:.06em;}
.passport-title .en{font-size:11px;letter-spacing:.28em;text-transform:uppercase;opacity:.85;margin-top:6px;}
.passport-vignette{
  position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:space-between;gap:12px;
}
.passport-vignette .code{
  font-family:var(--serif);font-size:46px;line-height:1;color:var(--gold);font-weight:600;
  text-shadow:0 0 0 transparent;
}
.passport-vignette .lines{font-family:var(--mono);font-size:9.5px;opacity:.7;line-height:1.6;text-align:right;}

/* ---------- SECTION HEADERS ---------- */
.sec{padding:72px 0;border-bottom:1px solid var(--line);}
.sec-head{margin-bottom:40px;}
.sec-num{
  font-family:var(--mono);font-size:12px;color:var(--red);letter-spacing:.2em;
}
.sec h2{font-family:var(--serif);font-weight:500;font-size:clamp(30px,3.6vw,44px);line-height:1.1;margin:8px 0 12px;}
.sec .sub{color:var(--ink-soft);font-size:16px;max-width:640px;}

/* ---------- TOOL ---------- */
.tool{
  background:var(--paper-2);border:1px solid var(--line);border-radius:24px;
  padding:34px;
}
.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:22px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);font-weight:600;}
.field select,.field input{
  font:inherit;font-size:15px;padding:13px 14px;border:1px solid var(--line-strong);
  border-radius:12px;background:var(--paper);color:var(--ink);
}
.field select:focus,.field input:focus{outline:none;border-color:var(--red);box-shadow:0 0 0 3px rgba(185,28,43,.14);}
.tool-actions{display:flex;gap:12px;flex-wrap:wrap;}
.result{
  margin-top:22px;border-radius:16px;padding:24px;border:1px dashed var(--line-strong);
  background:linear-gradient(180deg,var(--paper),var(--paper-3));
  min-height:90px;
}
.result:empty{display:none;}
.result-tag{
  display:inline-block;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  padding:4px 10px;border-radius:999px;margin-bottom:10px;
}
.tag-free{background:rgba(45,106,79,.14);color:var(--jade);}
.tag-transit{background:rgba(184,146,58,.18);color:var(--gold);}
.tag-need{background:rgba(185,28,43,.12);color:var(--red);}
.tag-port{background:rgba(26,22,20,.1);color:var(--ink);}
.result h3{font-family:var(--serif);font-weight:600;font-size:24px;margin:0 0 8px;}
.result p{margin:0 0 14px;color:var(--ink-soft);}
.result .key{display:inline-flex;align-items:baseline;gap:8px;}
.result .key .letter{
  font-family:var(--serif);font-size:30px;color:var(--red);font-weight:600;line-height:1;
}
.result .key .vname{font-weight:600;}
.result .meta{font-size:14px;color:var(--ink-soft);margin-top:10px;}
.tool-note{margin-top:18px;font-size:13px;color:var(--ink-soft);display:flex;gap:8px;align-items:flex-start;}
.tool-note::before{content:"ⓘ";color:var(--gold);}

/* ---------- FILTER CHIPS ---------- */
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:30px;}
.chip{
  font:inherit;font-size:13px;padding:8px 15px;border-radius:999px;cursor:pointer;
  border:1px solid var(--line-strong);background:transparent;color:var(--ink);transition:.15s;
}
.chip:hover{border-color:var(--ink);}
.chip.active{background:var(--ink);color:var(--paper);border-color:var(--ink);}

/* ---------- VISA GRID ---------- */
.visa-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;}

/* visa sticker card */
.visa{
  position:relative;border-radius:10px;background:var(--paper-2);
  padding:22px 24px 20px;
  border:1px solid var(--line);
  box-shadow:0 1px 0 var(--paper) inset, 0 14px 30px -22px rgba(0,0,0,.3);
  /* serrated perforation on the right */
  background-image:
    radial-gradient(circle at 100% 50%, var(--paper) 6px, transparent 6.5px),
    radial-gradient(circle at 100% 22%, var(--paper) 6px, transparent 6.5px),
    radial-gradient(circle at 100% 78%, var(--paper) 6px, transparent 6.5px);
  background-position:calc(100% + 6px) 50%, calc(100% + 6px) 22%, calc(100% + 6px) 78%;
  background-repeat:no-repeat;
  overflow:hidden;
}
.visa::before{
  /* left binding holes */
  content:"";position:absolute;left:0;top:0;bottom:0;width:14px;
  background:radial-gradient(circle at 50% 18%, var(--paper) 2.5px, transparent 3px),
             radial-gradient(circle at 50% 38%, var(--paper) 2.5px, transparent 3px),
             radial-gradient(circle at 50% 58%, var(--paper) 2.5px, transparent 3px),
             radial-gradient(circle at 50% 78%, var(--paper) 2.5px, transparent 3px);
  background-repeat:no-repeat;background-color:transparent;
  border-right:1px dashed var(--line);
}
.visa-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding-left:18px;}
.visa-code{
  font-family:var(--serif);font-size:54px;line-height:.9;font-weight:600;color:var(--ink);
}
.visa-code sub{font-size:14px;font-weight:500;color:var(--ink-soft);font-family:var(--sans);letter-spacing:.02em;vertical-align:baseline;margin-left:2px;}
.visa-seal{
  width:58px;height:58px;border-radius:50%;border:1.5px solid var(--red);color:var(--red);
  display:grid;place-items:center;font-family:var(--serif);font-size:28px;font-weight:600;
  transform:rotate(-7deg);position:relative;flex-shrink:0;
  background:rgba(185,28,43,.06);
}
.visa-seal::after{content:"";position:absolute;inset:3px;border:1px solid rgba(185,28,43,.4);border-radius:50%;}
.visa-body{padding-left:18px;margin-top:12px;}
.visa-name{font-family:var(--serif);font-size:21px;font-weight:600;margin:0 0 6px;}
.visa-group{
  display:inline-block;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--jade);padding:3px 8px;border:1px solid rgba(45,106,79,.3);border-radius:999px;margin-bottom:12px;
}
.visa-purpose{font-size:14.5px;color:var(--ink-soft);margin:0 0 14px;}
.visa-meta{
  display:flex;flex-wrap:wrap;gap:14px;padding-top:12px;border-top:1px dashed var(--line);
  font-size:12.5px;color:var(--ink-soft);
}
.visa-meta b{display:block;font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);font-weight:600;margin-bottom:2px;}
.visa-note{
  margin-top:12px;font-size:12.5px;color:var(--ink);padding-left:18px;padding-top:12px;
  border-top:1px dashed var(--line);display:flex;gap:8px;align-items:flex-start;
}
.visa-note::before{content:"✎";color:var(--gold);flex-shrink:0;}
.visa-new{
  position:absolute;top:14px;right:18px;background:var(--red);color:var(--paper);
  font-family:var(--mono);font-size:10px;letter-spacing:.1em;padding:3px 8px;border-radius:4px;
  transform:rotate(6deg);
}

/* ---------- FREE ROUTES ---------- */
.routes{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;}
.route{
  background:var(--paper-2);border:1px solid var(--line);border-radius:18px;padding:26px;
  position:relative;overflow:hidden;
}
.route::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:120px;height:120px;border-radius:50%;
  border:1px solid var(--line);opacity:.6;
}
.route .rnum{font-family:var(--serif);font-size:42px;color:var(--red);line-height:1;font-weight:600;}
.route h3{font-family:var(--serif);font-size:21px;margin:14px 0 8px;font-weight:600;}
.route p{font-size:14px;color:var(--ink-soft);margin:0;}
.route .rn{position:relative;z-index:1;}

/* ---------- STEPS ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;counter-reset:step;}
.step{
  background:var(--paper-2);border:1px solid var(--line);border-radius:16px;padding:24px;position:relative;
}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--mono);font-size:12px;color:var(--red);letter-spacing:.1em;
}
.step h3{font-family:var(--serif);font-size:19px;margin:10px 0 8px;font-weight:600;}
.step p{font-size:14px;color:var(--ink-soft);margin:0;}

/* ---------- SOURCES ---------- */
.sources{display:flex;flex-direction:column;gap:10px;}
.source{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 20px;background:var(--paper-2);border:1px solid var(--line);border-radius:12px;
  text-decoration:none;color:var(--ink);transition:.15s;
}
.source:hover{border-color:var(--red);transform:translateX(4px);}
html[dir=rtl] .source:hover{transform:translateX(-4px);}
.source span{font-family:var(--serif);font-size:16px;font-weight:500;}
.source .ext{font-family:var(--mono);font-size:12px;color:var(--ink-soft);}

/* ---------- FOOTER ---------- */
footer.foot{padding:48px 0 60px;text-align:center;}
footer.foot .foot-seal{
  width:64px;height:64px;border-radius:50%;border:2px solid var(--red);color:var(--red);
  display:grid;place-items:center;margin:0 auto 18px;font-family:var(--serif);font-size:30px;font-weight:600;
  transform:rotate(-3deg);
}
footer.foot p{color:var(--ink-soft);font-size:14px;margin:6px 0;}
footer.foot .updated{font-family:var(--mono);font-size:12px;color:var(--ink-soft);}

/* ---------- RESPONSIVE ---------- */
@media(max-width:880px){
  .hero{padding:60px 0 40px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .passport{max-width:420px;}
  .tool-grid{grid-template-columns:1fr;}
  .nav-row{height:58px;}
  .brand-name{font-size:17px;}
}
@media(max-width:560px){
  .wrap{padding:0 20px;}
  .sec{padding:56px 0;}
  .tool{padding:24px 18px;}
  .visa{padding:20px 22px 18px;}
  .visa-code{font-size:46px;}
  .hero h1{font-size:38px;}
}

/* RTL */
html[dir=rtl] .eyebrow::before{display:none;}
html[dir=rtl] .eyebrow{flex-direction:row-reverse;}
html[dir=rtl] .visa::before{left:auto;right:0;border-right:none;border-left:1px dashed var(--line);}
html[dir=rtl] .visa-head,html[dir=rtl] .visa-body{padding-left:0;padding-right:18px;}
html[dir=rtl] .visa-note{padding-left:0;padding-right:18px;}
html[dir=rtl] .lang-menu{right:auto;left:0;}

::selection{background:var(--red);color:var(--paper);}