:root{
    --ink-deep:      #0c2444;
    --ink-blue:      #163b73;
    --ink-blue-mid:  #24518f;
    --ink-blue-soft: #587bb0;
    --paper:         #faf5e9;
    --paper-2:       #f2ead7;
    --paper-line:    #e4d9bf;
    --seal-red:      #a53a30;
    --seal-red-soft: #c9564a;
    --ink-black:     #1f1c14;
    --ink-fade:      #5c574a;
    --white:         #fffdf7;

    --font-cjk:   'Noto Serif SC', serif;
    --font-body:  'Noto Sans', sans-serif;
    --font-brush: 'Ma Shan Zheng', cursive;

    --radius: 2px;
    --container: 1180px;
  }

  *{ margin:0; padding:0; box-sizing:border-box; }
  html{ scroll-behavior:smooth; }
  body{
    background:var(--paper);
    color:var(--ink-black);
    font-family:var(--font-body);
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  ul{ list-style:none; }
  button{ font-family:inherit; }
  .wrap{ max-width:var(--container); margin:0 auto; padding:0 44px; }

  body::before{
    content:"";
    position:fixed; inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      radial-gradient(circle at 20% 10%, rgba(22,59,115,0.035), transparent 40%),
      radial-gradient(circle at 85% 30%, rgba(165,58,48,0.03), transparent 35%);
  }

  @media (prefers-reduced-motion: reduce){
    *{ animation-duration:0.01ms !important; transition-duration:0.01ms !important; }
  }

  .seal{
    display:inline-flex; align-items:center; justify-content:center;
    width:1em; height:1em; border-radius:50%;
    border:2px solid currentColor; position:relative;
  }
  .seal::after{
    content:""; position:absolute; inset:3px;
    border:1px solid currentColor; border-radius:50%; opacity:.55;
  }

  /* ================= HEADER ================= */
  header{
    position:sticky; top:0; z-index:200;
    background:rgba(250,245,233,0.94);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--paper-line);
  }
  .header-inner{ display:flex; align-items:center; justify-content:space-between; height:76px; }
  .brand{ display:flex; align-items:center; gap:12px; }
  .brand img{ width:42px; height:42px; }
  .brand-text{ display:flex; flex-direction:column; line-height:1.1; }
  .brand-text .zh{ font-family:var(--font-cjk); font-weight:700; font-size:18px; color:var(--ink-blue); letter-spacing:1px; }
  .brand-text .en{ font-size:10px; letter-spacing:2.2px; text-transform:uppercase; color:var(--ink-fade); margin-top:2px; }

  nav.main-nav{ display:flex; align-items:center; gap:1px; }
  nav.main-nav > .nav-item{ position:relative; }
  nav.main-nav a.nav-link{
    display:flex; align-items:center; gap:5px;
    font-size:13.5px; font-weight:600; color:var(--ink-black);
    padding:10px 13px; border-radius:var(--radius);
    position:relative; transition:color .2s; cursor:pointer;
  }
  nav.main-nav a.nav-link::after{
    content:""; position:absolute; left:13px; right:13px; bottom:5px; height:2px;
    background:var(--seal-red); transform:scaleX(0); transform-origin:left; transition:transform .25s ease;
  }
  nav.main-nav a.nav-link:hover{ color:var(--ink-blue); }
  nav.main-nav a.nav-link:hover::after{ transform:scaleX(1); }
  .caret{ width:9px; height:9px; border-right:1.6px solid currentColor; border-bottom:1.6px solid currentColor; transform:rotate(45deg); margin-top:-3px; opacity:.6; }

  .mega{
    position:absolute; top:calc(100% + 10px); left:50%; transform:translateX(-50%);
    background:var(--white); border:1px solid var(--paper-line);
    box-shadow:0 18px 40px rgba(12,36,68,0.14);
    padding:18px; width:420px;
    opacity:0; visibility:hidden; translate:0 6px;
    transition:.18s ease;
  }
  .nav-item:hover .mega, .nav-item:focus-within .mega{ opacity:1; visibility:visible; translate:0 0; }
  .mega-grid{ display:grid; grid-template-columns:1fr 1fr; gap:6px; }
  .mega-grid a{
    display:flex; flex-direction:column; gap:2px;
    padding:10px 12px; border-radius:var(--radius);
    border:1px solid transparent;
  }
  .mega-grid a:hover{ background:var(--paper-2); border-color:var(--paper-line); }
  .mega-grid .code{ font-family:var(--font-cjk); font-weight:700; font-size:14.5px; color:var(--ink-blue); }
  .mega-grid .tag{ font-size:11.5px; color:var(--ink-fade); }
  .mega-foot{ margin-top:10px; padding-top:10px; border-top:1px solid var(--paper-line); font-size:12.5px; font-weight:700; color:var(--seal-red); }

  /* single-column mega list for generic nav groups (Học theo lộ trình, Tra cứu..., v.v.) */
  .mega-list{ grid-template-columns:1fr; }
  .mega-list .code{ font-family:var(--font-body); font-size:13.5px; }
  .nav-item:nth-child(1) .mega, .nav-item:nth-child(4) .mega{ width:340px; }

  .header-actions{ display:flex; align-items:center; gap:12px; }
  .icon-btn{
    width:37px; height:37px; display:flex; align-items:center; justify-content:center;
    border:1px solid var(--paper-line); border-radius:50%; color:var(--ink-blue); background:var(--white);
    cursor:pointer; transition:.2s;
  }
  .icon-btn:hover{ border-color:var(--ink-blue); background:var(--paper-2); }
  .btn-primary{
    background:var(--ink-blue); color:var(--white); font-size:13px; font-weight:700; letter-spacing:.4px;
    padding:10px 20px; border-radius:var(--radius); border:1px solid var(--ink-blue); transition:.2s; white-space:nowrap;
  }
  .btn-primary:hover{ background:var(--ink-deep); border-color:var(--ink-deep); }
  .hamburger{ display:none; width:38px; height:38px; border:none; background:none; cursor:pointer; color:var(--ink-blue); }

  /* mobile nav */
  .mobile-nav{ display:none; flex-direction:column; background:var(--paper); border-bottom:1px solid var(--paper-line); padding:6px 20px 18px; max-height:80vh; overflow:auto; }
  .mobile-nav.open{ display:flex; }
  .mn-row{ border-bottom:1px solid var(--paper-line); }
  .mn-row:last-child{ border-bottom:none; }
  .mn-top{ display:flex; align-items:center; justify-content:space-between; padding:13px 0; font-weight:700; font-size:15px; cursor:pointer; }
  .mn-top .caret{ transition:.2s; }
  .mn-row.open .mn-top .caret{ transform:rotate(225deg); }
  .mn-sub{ display:none; padding:0 0 12px 12px; }
  .mn-row.open .mn-sub{ display:block; }
  .mn-sub a{ display:flex; justify-content:space-between; padding:8px 0; font-size:13.5px; color:var(--ink-fade); }
  .mn-sub a span.code{ color:var(--ink-blue); font-weight:700; font-family:var(--font-cjk); }
  .mn-cta{ margin-top:14px; display:block; text-align:center; background:var(--seal-red); color:var(--white); padding:12px; font-weight:700; border-radius:var(--radius); }

  /* ================= HERO ================= */
  .hero{
    position:relative; overflow:hidden;
    background:linear-gradient(180deg, var(--ink-deep) 0%, var(--ink-blue) 62%, #1d4680 100%);
    color:var(--white); padding:72px 0 84px;
  }
  .hero::before{
    content:""; position:absolute; inset:0;
    background:
      radial-gradient(ellipse 700px 400px at 88% -10%, rgba(255,255,255,0.08), transparent 60%),
      radial-gradient(ellipse 500px 500px at -5% 90%, rgba(165,58,48,0.15), transparent 60%);
    pointer-events:none;
  }
  .hero-grid{ position:relative; z-index:1; display:grid; grid-template-columns:1.15fr 0.85fr; gap:40px; align-items:center; }
  .eyebrow{ display:inline-flex; align-items:center; gap:8px; font-size:12px; font-weight:700; letter-spacing:1.8px; text-transform:uppercase; color:#cfe0f7; margin-bottom:18px; }
  .eyebrow .seal{ color:#cfe0f7; font-size:14px; width:16px; height:16px; }
  .hero h1{ font-family:var(--font-cjk); font-weight:900; font-size:40px; line-height:1.3; letter-spacing:.5px; margin-bottom:18px; }
  .hero h1 .accent{ color:#e8b4a3; }
  .hero p.lead{ font-size:15.5px; color:#dbe6f5; max-width:480px; margin-bottom:26px; }

  .pillar-strip{ display:flex; flex-wrap:wrap; justify-content:center; gap:12px; margin-bottom:30px; }
  .pillar-strip a{
    font-size:14.5px; font-weight:700; padding:11px 20px; border:1px solid rgba(255,255,255,0.28);
    border-radius:24px; color:#eaf1fb; transition:.2s;
  }
  .pillar-strip a:hover{ background:rgba(255,255,255,0.12); border-color:#fff; }

  .hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; }
  .btn-ghost{ padding:12px 22px; border-radius:var(--radius); border:1px solid rgba(255,255,255,0.4); font-weight:700; font-size:13.5px; letter-spacing:.4px; transition:.2s; }
  .btn-ghost:hover{ background:rgba(255,255,255,0.1); border-color:#fff; }
  .hero-ctas .btn-primary{ background:var(--seal-red); border-color:var(--seal-red); }
  .hero-ctas .btn-primary:hover{ background:#8c2f27; border-color:#8c2f27; }

  .quote-panel{ position:relative; background:rgba(255,255,255,0.04); border:1px solid rgba(255,255,255,0.18); padding:34px 30px 28px; border-radius:var(--radius); }
  .quote-panel .brush{ font-family:var(--font-brush); font-size:52px; line-height:1.15; color:#f4e4c1; writing-mode:vertical-rl; text-orientation:upright; float:right; margin-left:16px; }
  .quote-panel .qz{ font-family:var(--font-cjk); font-weight:600; font-size:20px; line-height:1.7; margin-bottom:12px; color:var(--white); }
  .quote-panel .qv{ font-size:13.5px; color:#c9d8ec; font-style:italic; margin-bottom:14px; }
  .quote-panel .qsrc{ font-size:11.5px; letter-spacing:1.4px; text-transform:uppercase; color:#8fa8cb; display:flex; align-items:center; gap:8px; }
  .quote-panel .qsrc .seal{ width:14px; height:14px; font-size:10px; color:#e8b4a3; }

  /* ================= SECTION HEADS ================= */
  .section{ padding:76px 0; position:relative; z-index:1; }
  .section-head{ display:flex; justify-content:space-between; align-items:flex-end; margin-bottom:38px; gap:24px; flex-wrap:wrap; }
  .section-tag{ font-size:12px; font-weight:700; letter-spacing:2.2px; text-transform:uppercase; color:var(--seal-red); display:flex; align-items:center; gap:8px; margin-bottom:9px; }
  .section-tag .seal{ width:13px; height:13px; font-size:9px; }
  .section-head h2{ font-family:var(--font-cjk); font-size:27px; font-weight:700; color:var(--ink-blue); }
  .section-head .sub{ color:var(--ink-fade); font-size:14px; max-width:440px; }
  .section-link{ font-weight:700; font-size:13.5px; color:var(--ink-blue); white-space:nowrap; border-bottom:1px solid var(--ink-blue); padding-bottom:2px; }
  .section-link:hover{ color:var(--seal-red); border-color:var(--seal-red); }

  /* ================= 6 PILLAR OVERVIEW ================= */
  .cat-section{ background:var(--paper-2); border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line); }
  .cat-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:1px; background:var(--paper-line); border:1px solid var(--paper-line); }
  .cat-card{ background:var(--paper); padding:32px 28px; display:flex; flex-direction:column; gap:12px; transition:.25s; position:relative; }
  .cat-card:hover{ background:var(--white); }
  .cat-card .hz{ font-family:var(--font-cjk); font-weight:700; font-size:32px; color:var(--ink-blue); line-height:1; }
  .cat-card h3{ font-size:16.5px; font-weight:700; color:var(--ink-black); }
  .cat-card p{ font-size:13px; color:var(--ink-fade); }
  .cat-card .count{ margin-top:6px; font-size:11.5px; font-weight:700; letter-spacing:1px; color:var(--seal-red); text-transform:uppercase; }
  .cat-card::before{ content:""; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--ink-blue); transform:scaleY(0); transform-origin:top; transition:.25s; }
  .cat-card:hover::before{ transform:scaleY(1); }

  /* ================= LEVEL CARDS (HSK 3.0) ================= */
  .level-tier{ margin-bottom:34px; }
  .level-tier:last-child{ margin-bottom:0; }
  .tier-head{ display:flex; align-items:baseline; gap:12px; margin-bottom:16px; }
  .tier-head .tier-name{ font-family:var(--font-cjk); font-size:16.5px; font-weight:700; color:var(--ink-black); white-space:nowrap; }
  .tier-head .tier-range{ font-size:11.5px; font-weight:700; letter-spacing:1px; text-transform:uppercase; color:var(--seal-red); background:var(--paper-2); border:1px solid var(--paper-line); padding:3px 9px; border-radius:20px; white-space:nowrap; }
  .tier-head .tier-line{ flex:1; height:1px; background:var(--paper-line); }
  .level-grid{ display:grid; grid-template-columns:repeat(4, 1fr); gap:18px; }
  .level-card{ background:var(--white); border:1px solid var(--paper-line); padding:22px 20px 20px; transition:.2s; }
  .level-card:hover{ border-color:var(--ink-blue); box-shadow:0 10px 24px rgba(22,59,115,0.09); }
  .level-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:6px; }
  .level-code{ font-family:var(--font-cjk); font-weight:900; font-size:19px; color:var(--ink-blue); }
  .level-badge{ width:30px; height:30px; border-radius:50%; background:var(--paper-2); border:1px solid var(--paper-line); display:flex; align-items:center; justify-content:center; font-family:var(--font-cjk); font-size:12px; color:var(--seal-red); font-weight:700; }
  .level-vi{ font-size:12.5px; font-weight:700; color:var(--ink-black); margin-bottom:2px; }
  .level-tag{ font-size:12px; color:var(--ink-fade); margin-bottom:16px; }
  .level-sub{ display:grid; grid-template-columns:1fr 1fr; gap:8px; }
  .level-sub a{
    display:flex; align-items:center; gap:7px; font-size:11.5px; font-weight:600; color:var(--ink-blue-mid);
    background:var(--paper-2); border:1px solid var(--paper-line); padding:8px 8px; border-radius:var(--radius); transition:.15s;
  }
  .level-sub a:hover{ background:var(--ink-blue); color:var(--white); border-color:var(--ink-blue); }
  .level-sub a .ic{ font-family:var(--font-cjk); font-weight:700; opacity:.8; }

  /* level chip row (bài đọc / luyện đề) */
  .chip-row{ display:flex; flex-wrap:wrap; gap:10px; }
  .level-chip{
    display:flex; align-items:center; gap:9px; background:var(--white); border:1px solid var(--paper-line);
    padding:11px 18px; border-radius:24px; font-size:13px; font-weight:700; color:var(--ink-blue); transition:.2s;
  }
  .level-chip .code{ font-family:var(--font-cjk); font-weight:900; }
  .level-chip small{ font-weight:500; color:var(--ink-fade); }
  .level-chip:hover{ background:var(--ink-blue); color:var(--white); border-color:var(--ink-blue); }
  .level-chip:hover small{ color:#cfe0f7; }

  /* ================= ARTICLE / SAMPLE CARDS ================= */
  .article-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:26px; }
  .article-card{ background:var(--white); border:1px solid var(--paper-line); display:flex; flex-direction:column; transition:.25s; }
  .article-card:hover{ border-color:var(--ink-blue); box-shadow:0 10px 28px rgba(22,59,115,0.1); transform:translateY(-3px); }
  .article-media{ height:130px; background:linear-gradient(135deg, var(--ink-blue) 0%, var(--ink-deep) 100%); display:flex; align-items:center; justify-content:center; position:relative; overflow:hidden; }
  .article-media .big-zh{ font-family:var(--font-cjk); font-weight:900; font-size:58px; color:rgba(255,255,255,0.14); }
  .stamp-badge{ position:absolute; top:13px; right:13px; width:40px; height:40px; border-radius:50%; background:var(--seal-red); color:var(--white); display:flex; align-items:center; justify-content:center; font-family:var(--font-cjk); font-weight:700; font-size:12.5px; border:2px solid rgba(255,255,255,0.5); }
  .article-body{ padding:22px 22px 24px; display:flex; flex-direction:column; gap:9px; flex:1; }
  .article-tag{ font-size:10.5px; font-weight:700; letter-spacing:1.4px; text-transform:uppercase; color:var(--ink-blue-soft); }
  .article-body h3{ font-family:var(--font-cjk); font-size:18px; font-weight:700; color:var(--ink-black); line-height:1.4; }
  .article-body h3 .pinyin{ display:block; font-family:var(--font-body); font-size:12px; font-weight:500; color:var(--ink-fade); margin-top:4px; }
  .article-body p{ font-size:13px; color:var(--ink-fade); flex:1; }
  .article-meta{ display:flex; justify-content:space-between; align-items:center; font-size:11.5px; color:var(--ink-fade); border-top:1px solid var(--paper-line); padding-top:11px; margin-top:4px; }
  .article-meta .read{ color:var(--seal-red); font-weight:700; }

  /* ================= QUOTE STRIP ================= */
  .quote-strip{ background:var(--ink-blue); color:var(--white); padding:56px 0; text-align:center; position:relative; }
  .quote-strip .mark{ font-family:var(--font-brush); font-size:38px; color:rgba(255,255,255,0.35); line-height:1; margin-bottom:6px; }
  .quote-strip .zh{ font-family:var(--font-cjk); font-size:24px; font-weight:600; margin-bottom:10px; }
  .quote-strip .vi{ font-size:14px; color:#cfdcf0; font-style:italic; }
  .quote-strip .src{ margin-top:16px; font-size:11.5px; letter-spacing:2px; text-transform:uppercase; color:#8fa8cb; }

  /* ================= IDIOM / STORY strips ================= */
  .split-section{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--paper-line); border:1px solid var(--paper-line); }
  .split-col{ background:var(--paper); padding:44px 40px; }
  .split-col .section-tag{ margin-bottom:14px; }
  .split-col h2{ font-family:var(--font-cjk); font-size:22px; color:var(--ink-blue); margin-bottom:10px; font-weight:700; }
  .split-col p.desc{ font-size:13.5px; color:var(--ink-fade); margin-bottom:22px; }
  .mini-list{ display:flex; flex-direction:column; gap:0; margin-bottom:20px; }
  .mini-item{ display:flex; justify-content:space-between; align-items:center; gap:12px; padding:13px 0; border-bottom:1px solid var(--paper-line); }
  .mini-item:last-child{ border-bottom:none; }
  .mini-item .zh{ font-family:var(--font-cjk); font-weight:700; font-size:15px; color:var(--ink-black); }
  .mini-item .zh .py{ font-family:var(--font-body); font-weight:500; font-size:11.5px; color:var(--ink-fade); margin-left:8px; }
  .mini-item .mean{ font-size:12.5px; color:var(--ink-fade); text-align:right; max-width:170px; }

  /* ================= ABOUT / STATS ================= */
  .about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
  .about-copy h2{ font-family:var(--font-cjk); font-size:26px; color:var(--ink-blue); margin-bottom:16px; font-weight:700; }
  .about-copy p{ color:var(--ink-fade); font-size:14.5px; margin-bottom:14px; max-width:460px; }
  .founder-credentials{ display:flex; flex-direction:column; gap:11px; margin:6px 0 22px; max-width:460px; }
  .founder-credentials .cred-item{ display:flex; align-items:center; gap:11px; font-size:13.5px; font-weight:600; color:var(--ink-black); }
  .founder-credentials .cred-ic{ flex:none; width:28px; height:28px; border-radius:50%; background:var(--paper-2); border:1px solid var(--paper-line); display:flex; align-items:center; justify-content:center; font-family:var(--font-cjk); font-weight:700; color:var(--seal-red); font-size:13px; }
  /* Lộ trình học — roadmap track */
  .roadmap-track{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; position:relative; }
  .roadmap-step{ position:relative; padding:0 18px 0 0; }
  .roadmap-step:not(:last-child)::after{
    content:""; position:absolute; top:19px; left:calc(100% - 10px); width:calc(18px + 2px);
    border-top:2px dashed var(--paper-line);
  }
  .roadmap-num{
    width:38px; height:38px; border-radius:50%; background:var(--ink-blue); color:var(--white);
    display:flex; align-items:center; justify-content:center; font-family:var(--font-cjk); font-weight:700; font-size:15px;
    margin-bottom:14px;
  }
  .roadmap-step h3{ font-size:16px; font-weight:700; margin-bottom:6px; }
  .roadmap-step p{ font-size:13px; color:var(--ink-fade); margin-bottom:10px; }
  .roadmap-time{ font-size:11.5px; font-weight:700; color:var(--seal-red); text-transform:uppercase; letter-spacing:.5px; }

  /* ================= LỘ TRÌNH — BẢNG CHI TIẾT HSK / HSKK ================= */
  .roadmap-detail{ margin-top:52px; }
  .roadmap-detail-head{ margin-bottom:18px; }
  .roadmap-detail-head h3{ display:flex; align-items:center; gap:10px; font-size:17px; font-weight:700; color:var(--ink-black); }
  .roadmap-detail-head .seal{ display:inline-flex; align-items:center; justify-content:center; width:26px; height:26px; border-radius:5px; background:var(--seal-red); color:#fff; font-family:var(--font-cjk); font-size:13px; font-weight:900; }

  .roadmap-table-wrap{ overflow-x:auto; border:1px solid var(--paper-line); border-radius:var(--radius); background:var(--white); box-shadow:0 10px 24px -16px rgba(22,59,115,0.14); }
  table.roadmap-table{ width:100%; border-collapse:collapse; min-width:760px; }
  table.roadmap-table thead th{
    text-align:left; font-size:11.5px; font-weight:800; letter-spacing:.06em; text-transform:uppercase;
    color:var(--white); background:var(--ink-blue); padding:12px 16px; white-space:nowrap;
  }
  table.roadmap-table tbody td{
    vertical-align:top; padding:16px; font-size:13.5px; line-height:1.55; color:var(--ink-black);
    border-top:1px solid var(--paper-line);
  }
  table.roadmap-table tbody tr:nth-child(even){ background:var(--paper-2); }
  table.roadmap-table td.lv{ white-space:nowrap; width:1%; }
  table.roadmap-table td.lv .code{
    display:inline-block; font-family:var(--font-cjk); font-weight:800; font-size:13.5px; color:var(--ink-blue);
    background:var(--accent-soft, #E7EDF6); border:1px solid var(--paper-line); padding:4px 10px; border-radius:20px;
  }
  table.roadmap-table td ul{ margin:0; padding-left:16px; }
  table.roadmap-table td ul li{ margin-bottom:4px; }
  table.roadmap-table td ul li:last-child{ margin-bottom:0; }
  table.roadmap-table td .acc{ color:var(--seal-red); font-weight:600; }
  table.roadmap-table td.dur{ white-space:nowrap; font-weight:700; color:var(--ink-blue); width:1%; text-align:center; }
  table.roadmap-table td.dur small{ font-weight:500; color:var(--ink-fade); }

  /* Bảng cấu trúc đề thi HSKK — thêm chi tiết phụ, căn giữa */
  table.roadmap-table thead th .th-sub{ display:block; font-size:10.5px; font-weight:600; text-transform:none; letter-spacing:0; color:rgba(255,255,255,.72); margin-top:2px; }
  table.roadmap-table td.center{ text-align:center; }
  table.roadmap-table td.center small{ display:block; color:var(--ink-fade); font-size:12px; margin-top:2px; }
  table.roadmap-table td.center .acc{ display:block; margin-top:6px; font-size:11.5px; font-style:italic; color:var(--seal-red); font-weight:600; }
  table.roadmap-table td .lv-sub{ display:block; font-size:11px; font-weight:500; color:var(--ink-fade); margin-top:4px; font-style:normal; }
  table.roadmap-table--exam td, table.roadmap-table--exam th{ text-align:center; }
  table.roadmap-table--exam td.lv{ text-align:left; }
  .roadmap-note{ margin-top:12px; font-size:12px; line-height:1.6; color:var(--ink-fade); font-style:italic; }

  @media (max-width:720px){
    table.roadmap-table{ min-width:640px; }
    table.roadmap-table--exam{ min-width:820px; }
  }

  .stat-grid{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--paper-line); border:1px solid var(--paper-line); }
  .stat-card{ background:var(--white); padding:28px 24px; }
  .stat-card .num{ font-family:var(--font-cjk); font-size:34px; font-weight:900; color:var(--seal-red); }
  .stat-card .label{ font-size:12.5px; color:var(--ink-fade); margin-top:6px; }

  /* ================= SEARCH ================= */
  .find-section{ background:var(--paper-2); border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line); padding:54px 0; }
  .find-inner{ display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap; }
  .find-inner h2{ font-family:var(--font-cjk); font-size:21px; color:var(--ink-blue); }
  .find-inner p{ font-size:13.5px; color:var(--ink-fade); margin-top:5px; }
  .search-box{ display:flex; align-items:center; background:var(--white); border:1px solid var(--paper-line); padding:4px 4px 4px 16px; min-width:340px; max-width:100%; }
  .search-box input{ border:none; outline:none; background:none; flex:1; font-size:13.5px; font-family:var(--font-body); padding:10px 0; }
  .search-box button{ background:var(--ink-blue); color:var(--white); border:none; padding:10px 18px; font-weight:700; font-size:13px; cursor:pointer; transition:.2s; }
  .search-box button:hover{ background:var(--ink-deep); }

  /* ================= FOOTER ================= */
  footer{ background:var(--ink-deep); color:#c9d8ec; padding:64px 0 0; }
  .footer-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr 1fr; gap:32px; padding-bottom:46px; border-bottom:1px solid rgba(255,255,255,0.12); }
  .footer-brand{ display:flex; flex-direction:column; gap:14px; }
  .footer-brand img{ width:44px; }
  .footer-brand .zh{ font-family:var(--font-cjk); font-size:18px; color:var(--white); font-weight:700; }
  .footer-brand .en{ font-size:10px; letter-spacing:2.2px; color:#8fa8cb; margin-top:2px; text-transform:uppercase; }
  .footer-brand p{ font-size:13px; color:#93a9c6; max-width:260px; }
  .footer-social{ display:flex; gap:9px; margin-top:4px; }
  .footer-social a{ width:32px; height:32px; border:1px solid rgba(255,255,255,0.22); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:11px; font-weight:700; transition:.2s; }
  .footer-social a:hover{ background:var(--seal-red); border-color:var(--seal-red); }
  .footer-col h4{ font-size:11.5px; letter-spacing:1.4px; text-transform:uppercase; color:#f4e4c1; margin-bottom:16px; }
  .footer-col ul li{ margin-bottom:10px; }
  .footer-col ul li a{ font-size:13px; color:#c9d8ec; transition:.2s; }
  .footer-col ul li a:hover{ color:var(--white); padding-left:3px; }
  .footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding:22px 0; font-size:12px; color:#7690b3; flex-wrap:wrap; gap:10px; }
  .footer-bottom .brush-quote{ font-family:var(--font-brush); font-size:17px; color:#8fa8cb; }

  /* ================= RESPONSIVE ================= */
  @media (max-width: 1100px){
    .level-grid{ grid-template-columns:repeat(2, 1fr); }
    .footer-grid{ grid-template-columns:1.3fr 1fr 1fr; }
  }
  @media (max-width: 1020px){
    .hero-grid{ grid-template-columns:1fr; }
    .quote-panel{ order:-1; }
    .article-grid{ grid-template-columns:repeat(2,1fr); }
    .cat-grid{ grid-template-columns:repeat(2,1fr); }
    .about-grid{ grid-template-columns:1fr; }
    .split-section{ grid-template-columns:1fr; }
    .roadmap-track{ grid-template-columns:1fr 1fr; gap:28px 0; }
    .roadmap-step:nth-child(2)::after{ display:none; }
  }
  @media (max-width: 720px){
    .wrap{ padding:0 24px; }
    nav.main-nav{ display:none; }
    .header-actions .btn-primary{ display:none; }
    .hamburger{ display:flex; align-items:center; justify-content:center; }
    .header-inner{ height:64px; }
    .brand img{ width:34px; height:34px; }
    .brand-text .zh{ font-size:15px; }

    .hero{ padding:48px 0 52px; }
    .hero h1{ font-size:27px; }
    .hero p.lead{ font-size:14px; }
    .quote-panel .brush{ font-size:34px; }
    .quote-panel .qz{ font-size:17px; }

    .section{ padding:48px 0; }
    .section-head h2{ font-size:22px; }
    .cat-grid{ grid-template-columns:1fr; }
    .level-grid{ grid-template-columns:1fr; }
    .article-grid{ grid-template-columns:1fr; }
    .stat-grid{ grid-template-columns:1fr; }
    .roadmap-track{ grid-template-columns:1fr; gap:22px; }
    .roadmap-step::after{ display:none !important; }
    .split-col{ padding:34px 22px; }
    .find-inner{ flex-direction:column; align-items:flex-start; }
    .search-box{ min-width:100%; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
  }