/* =========================================================
   Chinese LaoShi — дизайн-система сайта
   Палитра согласована с приложением («тёплый кампус»):
   кремовый фон, тёмно-синий текст/шапка, оранжевый акцент CTA,
   листовой зелёный — как второй акцент, красная печать — подпись бренда.
   ========================================================= */

:root{
  --cream:        #F7F2E7;
  --cream-card:   #FFFDF7;
  --cream-border: #EAE0CA;
  --navy:         #16233F;
  --navy-light:   #22335A;
  --navy-softer:  #2C3E63;
  --orange:       #F2A63C;
  --orange-dark:  #D98A1E;
  --leaf:         #3FA66B;
  --leaf-bg:      #E7F3EB;
  --seal:         #C0392B;
  --ink:          #1B1B18;
  --muted:        #6B6B63;
  --muted-2:      #8B8A80;

  --radius-s: 10px;
  --radius-m: 16px;
  --radius-l: 26px;
  --shadow-card: 0 1px 2px rgba(22,35,63,0.04), 0 8px 24px rgba(22,35,63,0.06);
  --shadow-hover: 0 4px 10px rgba(22,35,63,0.06), 0 16px 34px rgba(22,35,63,0.10);

  --maxw: 1160px;

  --font-display: "Yeseva One", "PT Serif", Georgia, serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:400; line-height:1.14; margin:0 0 .5em; color:var(--navy); }
p{ margin:0 0 1em; }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:3px solid var(--orange);
  outline-offset:2px;
  border-radius:4px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

/* ---------- eyebrow / tag ---------- */
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-body); font-weight:700; font-size:13px; letter-spacing:.06em; text-transform:uppercase;
  color:var(--orange-dark);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"汉"; font-family:var(--font-display); font-size:15px; line-height:1;
  display:inline-flex; align-items:center; justify-content:center;
  width:22px; height:22px; border-radius:50%;
  background:var(--navy); color:var(--cream-card);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--font-body); font-weight:700; font-size:15px;
  padding:14px 26px; border-radius:100px; border:2px solid transparent;
  cursor:pointer; transition:transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  white-space:nowrap;
}
.btn-primary{ background:var(--orange); color:var(--navy); box-shadow:0 6px 0 var(--orange-dark); }
.btn-primary:hover{ transform:translateY(2px); box-shadow:0 4px 0 var(--orange-dark); }
.btn-primary:active{ transform:translateY(6px); box-shadow:0 0 0 var(--orange-dark); }
.btn-outline{ background:transparent; color:var(--navy); border-color:var(--navy); }
.btn-outline:hover{ background:var(--navy); color:var(--cream-card); }
.btn-ghost-light{ background:transparent; color:var(--cream-card); border-color:rgba(247,242,231,0.4); }
.btn-ghost-light:hover{ background:rgba(247,242,231,0.12); border-color:var(--cream-card); }
.btn-tg{ background:#22335A; color:#fff; }
.btn-tg:hover{ background:#2C3E63; }
.btn-block{ width:100%; }
.btn-sm{ padding:10px 18px; font-size:14px; }

/* ---------- header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(247,242,231,0.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--cream-border);
}
.site-header .container{ display:flex; align-items:center; justify-content:space-between; height:76px; gap:20px; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-size:21px; color:var(--navy); flex-shrink:0; }
.brand .brand-mark{
  width:36px; height:36px; border-radius:9px; background:var(--navy); color:var(--orange);
  display:flex; align-items:center; justify-content:center; font-family:var(--font-display); font-size:18px;
  transform:rotate(-4deg);
}
.brand .brand-sub{ font-family:var(--font-body); font-weight:600; font-size:11px; letter-spacing:.05em; color:var(--muted); text-transform:uppercase; display:block; margin-top:1px; }
.brand-text{ display:flex; flex-direction:column; line-height:1.05; }

.nav-primary{ display:flex; align-items:center; gap:28px; }
.nav-primary a{ font-size:15px; font-weight:600; color:var(--navy-light); padding:6px 2px; border-bottom:2px solid transparent; transition:border-color .15s, color .15s; }
.nav-primary a:hover{ border-color:var(--orange); }
.nav-primary a.active{ border-color:var(--orange); color:var(--navy); }
.nav-primary a.nav-china{ color:var(--seal); }

.header-cta{ display:flex; align-items:center; gap:12px; }
.nav-toggle{ display:none; }

@media (max-width: 980px){
  .nav-primary{
    position:fixed; inset:76px 0 0 0; background:var(--cream); border-top:1px solid var(--cream-border);
    flex-direction:column; align-items:flex-start; gap:0; padding:8px 24px 24px;
    transform:translateY(-8px); opacity:0; pointer-events:none; transition:opacity .18s ease, transform .18s ease;
    overflow-y:auto;
  }
  .nav-primary.open{ opacity:1; pointer-events:auto; transform:translateY(0); }
  .nav-primary a{ width:100%; padding:14px 0; border-bottom:1px solid var(--cream-border); font-size:17px; }
  .header-cta .btn-outline{ display:none; }
  .nav-toggle{
    display:flex; flex-direction:column; justify-content:center; gap:5px;
    width:40px; height:40px; border-radius:10px; border:1px solid var(--cream-border); background:var(--cream-card);
    cursor:pointer; padding:0; align-items:center;
  }
  .nav-toggle span{ width:18px; height:2px; background:var(--navy); border-radius:2px; }
}

/* ---------- hero ---------- */
.hero{ padding:64px 0 40px; overflow:hidden; }
.hero .container{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.hero h1{ font-size:clamp(34px,4.4vw,56px); }
.hero h1 em{ font-style:normal; color:var(--seal); }
.hero-lede{ font-size:19px; color:var(--navy-light); max-width:52ch; margin-bottom:28px; }
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom:30px; }
.hero-note{ display:flex; align-items:center; gap:10px; font-size:14px; color:var(--muted); }
.hero-note .dot{ width:6px; height:6px; border-radius:50%; background:var(--leaf); }

.hero-art{ position:relative; display:flex; align-items:center; justify-content:center; }
.hero-art svg{ width:100%; max-width:420px; height:auto; }
.char-stroke{
  fill:none; stroke:var(--navy); stroke-width:18; stroke-linecap:round; stroke-linejoin:round;
  stroke-dasharray:1400; stroke-dashoffset:1400;
  animation:draw 2.6s ease forwards .3s;
}
.char-stroke.accent{ stroke:var(--seal); }
@keyframes draw{ to{ stroke-dashoffset:0; } }
.hero-badge{
  position:absolute; bottom:-6px; left:-6px; background:var(--cream-card); border:1px solid var(--cream-border);
  border-radius:var(--radius-m); padding:12px 16px; box-shadow:var(--shadow-card); font-size:13px; font-weight:700; color:var(--navy);
  display:flex; align-items:center; gap:8px;
}
.hero-badge .pip{ width:8px; height:8px; border-radius:50%; background:var(--leaf); }

@media (max-width: 980px){
  .hero .container{ grid-template-columns:1fr; gap:36px; }
  .hero-art{ order:-1; }
  .hero-art svg{ max-width:260px; }
}

/* ---------- sections ---------- */
section{ padding:72px 0; }
.section-head{ max-width:640px; margin-bottom:44px; }
.section-head h2{ font-size:clamp(26px,3vw,38px); }
.section-head p{ color:var(--muted); font-size:17px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

.bg-navy{ background:var(--navy); color:var(--cream); }
.bg-navy h2, .bg-navy h3, .bg-navy h4{ color:var(--cream-card); }
.bg-navy p{ color:rgba(247,242,231,0.78); }
.bg-navy .eyebrow{ color:var(--orange); }
.bg-navy .eyebrow::before{ background:var(--orange); color:var(--navy); }

.bg-card-alt{ background:var(--cream-card); border-top:1px solid var(--cream-border); border-bottom:1px solid var(--cream-border); }

/* ---------- grids / cards ---------- */
.grid{ display:grid; gap:22px; }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
.grid-2{ grid-template-columns:repeat(2,1fr); }
@media (max-width:900px){ .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:620px){ .grid-3,.grid-4,.grid-2{ grid-template-columns:1fr; } }

.card{
  background:var(--cream-card); border:1px solid var(--cream-border); border-radius:var(--radius-m);
  padding:28px; box-shadow:var(--shadow-card); transition:transform .18s ease, box-shadow .18s ease;
}
.card:hover{ transform:translateY(-3px); box-shadow:var(--shadow-hover); }
.card .icon{
  width:46px; height:46px; border-radius:12px; background:var(--navy); color:var(--orange);
  display:flex; align-items:center; justify-content:center; font-family:var(--font-display); font-size:20px; margin-bottom:16px;
}
.card h3{ font-size:19px; margin-bottom:8px; }
.card p{ color:var(--muted); font-size:15px; margin-bottom:0; }
.card .tag{ display:inline-block; margin-top:14px; font-size:12px; font-weight:700; text-transform:uppercase; letter-spacing:.04em; color:var(--leaf); background:var(--leaf-bg); padding:4px 10px; border-radius:100px; }

/* steps */
.steps{ counter-reset:step; display:grid; grid-template-columns:repeat(4,1fr); gap:22px; }
@media (max-width:900px){ .steps{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:560px){ .steps{ grid-template-columns:1fr; } }
.step{ position:relative; padding-top:8px; }
.step .num{
  counter-increment:step; font-family:var(--font-display); font-size:34px; color:var(--orange); margin-bottom:10px; display:block;
}
.step .num::before{ content:"0" counter(step); }
.step h3{ font-size:17px; margin-bottom:6px; }
.step p{ color:var(--muted); font-size:14.5px; }

/* stat / badge row */
.badge-row{ display:flex; flex-wrap:wrap; gap:14px; }
.badge-pill{
  display:inline-flex; align-items:center; gap:8px; background:var(--cream-card); border:1px solid var(--cream-border);
  border-radius:100px; padding:10px 18px; font-size:14px; font-weight:600; color:var(--navy);
}
.badge-pill .pip{ width:8px; height:8px; border-radius:50%; background:var(--orange); }

/* seal / stamp */
.seal{
  width:96px; height:96px; border:3px solid var(--seal); color:var(--seal); border-radius:12px;
  display:flex; align-items:center; justify-content:center; transform:rotate(-6deg);
  font-family:var(--font-display); font-size:15px; text-align:center; line-height:1.2; flex-shrink:0;
}

/* CTA band */
.cta-band{
  background:var(--navy); border-radius:var(--radius-l); padding:56px; display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap;
  position:relative; overflow:hidden;
}
.cta-band::after{
  content:"学"; position:absolute; right:-10px; bottom:-40px; font-family:var(--font-display); font-size:220px; color:rgba(242,166,60,0.08); line-height:1;
}
.cta-band h2{ color:var(--cream-card); margin-bottom:10px; font-size:clamp(24px,3vw,32px); }
.cta-band p{ color:rgba(247,242,231,0.75); margin-bottom:0; max-width:44ch; }
.cta-band .cta-actions{ display:flex; gap:14px; flex-wrap:wrap; position:relative; z-index:1; }

/* china highlight block */
.china-block{
  background:linear-gradient(135deg, #FBF3E3, #F3E7CE);
  border:1px solid var(--cream-border); border-radius:var(--radius-l); padding:44px;
  display:flex; gap:32px; align-items:center; flex-wrap:wrap;
}
.china-block .content{ flex:1; min-width:260px; }

/* ---------- forms ---------- */
.form-card{ background:var(--cream-card); border:1px solid var(--cream-border); border-radius:var(--radius-l); padding:40px; box-shadow:var(--shadow-card); }
.field{ margin-bottom:20px; }
.field label{ display:block; font-size:13px; font-weight:700; text-transform:uppercase; letter-spacing:.03em; color:var(--navy-light); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; padding:13px 16px; border-radius:var(--radius-s); border:1.5px solid var(--cream-border); background:#fff;
  font-family:var(--font-body); font-size:15px; color:var(--ink); transition:border-color .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--orange); outline:none; }
.field textarea{ resize:vertical; min-height:110px; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
@media (max-width:600px){ .field-row{ grid-template-columns:1fr; } }
.form-note{ font-size:13px; color:var(--muted-2); margin-top:6px; }
.form-success{
  display:none; background:var(--leaf-bg); border:1px solid var(--leaf); color:#215C3E; border-radius:var(--radius-m);
  padding:18px 20px; font-weight:600; margin-bottom:20px;
}
.form-success.visible{ display:block; }
.contact-alt{ display:flex; gap:12px; flex-wrap:wrap; margin-top:22px; }

/* ---------- FAQ ---------- */
.faq-item{ border-bottom:1px solid var(--cream-border); padding:22px 0; }
.faq-item summary{ cursor:pointer; font-weight:700; font-size:17px; color:var(--navy); list-style:none; display:flex; align-items:center; justify-content:space-between; gap:16px; }
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:"+"; font-family:var(--font-display); font-size:24px; color:var(--orange-dark); flex-shrink:0; transition:transform .2s ease; }
.faq-item[open] summary::after{ transform:rotate(45deg); }
.faq-item p{ color:var(--muted); margin-top:12px; padding-right:30px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--navy); color:rgba(247,242,231,0.85); padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:32px; margin-bottom:48px; }
@media (max-width:820px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .footer-grid{ grid-template-columns:1fr; } }
.footer-grid h4{ color:var(--cream-card); font-family:var(--font-body); font-weight:700; font-size:13px; text-transform:uppercase; letter-spacing:.05em; margin-bottom:16px; }
.footer-grid a{ display:block; padding:6px 0; font-size:14.5px; color:rgba(247,242,231,0.72); transition:color .15s ease; }
.footer-grid a:hover{ color:var(--orange); }
.footer-brand{ font-family:var(--font-display); font-size:22px; color:var(--cream-card); margin-bottom:12px; }
.footer-brand-sub{ font-size:14px; color:rgba(247,242,231,0.6); max-width:34ch; margin-bottom:20px; }
.social-row{ display:flex; gap:10px; }
.social-row a{
  width:40px; height:40px; border-radius:10px; border:1px solid rgba(247,242,231,0.25); display:flex; align-items:center; justify-content:center;
  padding:0; color:var(--cream-card);
}
.social-row a:hover{ background:var(--orange); border-color:var(--orange); color:var(--navy); }
.footer-bottom{ border-top:1px solid rgba(247,242,231,0.14); padding-top:24px; display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap; font-size:13px; color:rgba(247,242,231,0.55); }
.footer-bottom a{ color:rgba(247,242,231,0.55); }
.footer-bottom a:hover{ color:var(--orange); }

/* ---------- misc page bits ---------- */
.page-hero{ padding:56px 0 20px; }
.page-hero .eyebrow{ margin-bottom:10px; }
.page-hero h1{ font-size:clamp(30px,4vw,46px); max-width:18ch; }
.page-hero p{ font-size:18px; color:var(--navy-light); max-width:60ch; }

.legal-content{ max-width:780px; }
.legal-content h2{ font-size:22px; margin-top:40px; }
.legal-content h3{ font-size:17px; margin-top:24px; color:var(--navy); }
.legal-content p, .legal-content li{ color:var(--navy-light); font-size:15.5px; }
.legal-content ul{ margin:0 0 1em; padding-left:22px; list-style:disc; }
.legal-content li{ margin-bottom:6px; }
.legal-updated{ display:inline-block; background:var(--cream-card); border:1px solid var(--cream-border); border-radius:100px; padding:6px 14px; font-size:13px; color:var(--muted); margin-bottom:8px; }

.breadcrumb{ font-size:13px; color:var(--muted-2); margin-bottom:18px; }
.breadcrumb a{ color:var(--navy-light); font-weight:600; }
.breadcrumb a:hover{ color:var(--orange-dark); }

.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start; }
@media (max-width:860px){ .two-col{ grid-template-columns:1fr; } }

.quote-block{
  border-left:4px solid var(--seal); padding-left:22px; font-family:var(--font-display); font-size:22px; color:var(--navy); margin:28px 0;
}
.quote-block span{ display:block; font-family:var(--font-body); font-size:13px; color:var(--muted); margin-top:8px; font-weight:600; }

.pill-list{ display:flex; flex-wrap:wrap; gap:10px; margin-top:16px; }
.pill-list li{ background:var(--cream-card); border:1px solid var(--cream-border); padding:8px 14px; border-radius:100px; font-size:13.5px; font-weight:600; color:var(--navy-light); }

.blog-card{ display:block; }
.blog-card .card{ height:100%; }
.blog-meta{ font-size:12.5px; color:var(--muted-2); font-weight:700; text-transform:uppercase; letter-spacing:.04em; margin-bottom:10px; }

.article-body{ max-width:720px; }
.article-body h2{ font-size:24px; margin-top:36px; }
.article-body h3{ font-size:18px; margin-top:24px; }
.article-body p, .article-body li{ color:var(--navy-light); font-size:16.5px; }
.article-body ul{ padding-left:22px; list-style:disc; margin-bottom:1.2em; }
.article-body li{ margin-bottom:6px; }

.back-to-top{ text-align:center; padding:36px 0 4px; }