:root {
    --primary: #ab3500;
    --primary-2: #ff6b35;
    --secondary: #006b5c;
    --ink: #1a1a2e;
    --muted: #5B5B6C;
    --bg: #fcf8ff;
    --panel: #ffffff;
    --line: #ecdcd5;
    --soft-orange: #fff3ef;
    --soft-green: #e6faf5;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "Inter", -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, .brand { font-family: "Plus Jakarta Sans", "Microsoft YaHei", sans-serif; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.topbar {
    position: sticky; top: 0; z-index: 20;
    background: rgba(252, 248, 255, 0.86);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(236, 220, 213, 0.7);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 68px; }
.brand { font-weight: 800; font-size: 20px; color: var(--primary); text-decoration: none; letter-spacing: -0.02em; }
.topnav { display: flex; align-items: center; gap: 18px; font-size: 14px; }
.topnav a { color: var(--muted); text-decoration: none; transition: color .2s; }
.topnav a:hover { color: var(--primary); }
#lang-toggle { font-family: inherit; cursor: pointer; }
main { padding: 48px 0 96px; }
.hero {
    display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 36px;
    background: linear-gradient(135deg, var(--soft-orange) 0%, #fff 45%, var(--soft-green) 100%);
    border: 1px solid rgba(236, 220, 213, 0.7);
    border-radius: 32px; padding: 52px;
    box-shadow: 0 20px 50px rgba(171, 53, 0, 0.06);
}
.eyebrow { font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--primary); font-weight: 700; margin: 0 0 18px; }
.hero h1 { font-size: clamp(30px, 4.4vw, 46px); line-height: 1.18; margin: 0 0 16px; letter-spacing: -0.02em; }
.hero .sub { font-size: 18px; color: var(--primary); font-weight: 600; margin: 0 0 18px; }
.hero .lede { font-size: 16px; color: var(--muted); margin: 0; max-width: 560px; }
.hero.single { grid-template-columns: 1fr; padding: 52px; }
.hero.single .lede { max-width: 760px; }
.download-card.wide { max-width: 720px; margin: 40px auto 0; align-self: auto; }
.download-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.back.center { text-align: center; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.chip { font-size: 12px; padding: 5px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: var(--muted); }
.download-card {
    background: #fff; border: 1px solid var(--line); border-radius: 24px;
    padding: 26px; display: flex; flex-direction: column; gap: 12px; align-self: center;
    box-shadow: 0 12px 30px rgba(26, 26, 46, 0.05);
}
.download-card h3 { font-size: 16px; margin: 0 0 4px; }
.download-card p { font-size: 13px; color: var(--muted); margin: 0 0 8px; }
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 18px; border-radius: 14px; font-weight: 700; font-size: 14px;
    text-decoration: none; transition: transform .2s, box-shadow .2s, background .2s;
}
.btn.primary { background: linear-gradient(135deg, #ff6b35, #ff8c69); color: #fff; box-shadow: 0 10px 22px rgba(255, 107, 53, .28); }
.btn.ghost { background: #fff; color: var(--primary); border: 1.5px solid var(--primary); }
.btn:hover { transform: translateY(-2px); }
.file-note { font-size: 12px; color: var(--muted); margin-top: 4px; }
.section-title { margin: 56px 0 8px; font-size: 26px; }
.section-sub { color: var(--muted); margin: 0 0 24px; font-size: 15px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.card {
    display: block; color: inherit; text-decoration: none;
    background: var(--panel); border: 1px solid rgba(236, 220, 213, .8); border-radius: 24px;
    padding: 26px; box-shadow: 0 10px 28px rgba(26, 26, 46, .04);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
a.card:hover { transform: translateY(-4px); border-color: rgba(171, 53, 0, .35); box-shadow: 0 16px 36px rgba(171, 53, 0, .12); }
.card .card-link { display: inline-block; margin-top: 16px; font-size: 13px; font-weight: 700; color: var(--primary); }
.card .num { font-size: 12px; font-weight: 700; color: var(--primary); letter-spacing: .08em; }
.card h3 { font-size: 18px; margin: 8px 0 10px; }
.card p { font-size: 14px; color: var(--muted); margin: 0; }
.card ul { margin: 10px 0 0; padding-left: 20px; font-size: 14px; color: var(--muted); }
.card li { margin-bottom: 4px; }
.band {
    margin-top: 48px; border-radius: 24px; padding: 34px;
    background: linear-gradient(135deg, #fff, #fff3ef);
    border: 1px solid var(--line);
    display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.band h3 { margin: 0 0 6px; font-size: 20px; }
.band p { margin: 0; color: var(--muted); font-size: 14px; }
.band .actions { display: flex; gap: 10px; flex-wrap: wrap; }
.back { margin-top: 40px; }
.back a { color: var(--primary); font-weight: 600; font-size: 14px; text-decoration: none; }
footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: 13px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--primary); }
[hidden] { display: none !important; }
.article { margin-top: 8px; }
.article-hero {
    border-radius: 32px; padding: 52px;
    background: linear-gradient(135deg, var(--soft-green) 0%, #fff 50%, var(--soft-orange) 100%);
    border: 1px solid rgba(236, 220, 213, 0.7);
    box-shadow: 0 20px 50px rgba(171, 53, 0, 0.06);
}
.article-hero h1 { font-size: clamp(28px, 4vw, 42px); line-height: 1.22; margin: 0 0 12px; letter-spacing: -0.02em; }
.article-hero .sub { font-size: 18px; color: var(--primary); font-weight: 600; margin: 0 0 18px; }
.article-hero .lede { color: var(--muted); font-size: 16px; margin: 0; max-width: 760px; }
.stats { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 26px; }
.stat strong { display: block; font-family: "Plus Jakarta Sans", sans-serif; font-size: 28px; color: var(--primary); line-height: 1.1; }
.stat span { font-size: 12px; color: var(--muted); letter-spacing: .04em; }
.article h2 { font-size: 26px; margin: 48px 0 14px; padding-top: 10px; border-top: 1px solid var(--line); }
.article p { font-size: 16px; color: #3c3b4a; margin: 0 0 18px; }
.article figure { margin: 28px 0; }
.article figure img { width: 100%; height: auto; border-radius: 20px; display: block; box-shadow: 0 14px 34px rgba(26, 26, 46, .10); }
.article figcaption { font-size: 13px; color: var(--muted); margin-top: 10px; text-align: center; }
@media (max-width: 860px) {
    .hero { grid-template-columns: 1fr; padding: 32px 26px; }
    .hero.single { padding: 32px 26px; }
    .download-card.wide { margin-top: 28px; }
    .download-actions { grid-template-columns: 1fr; }
    .grid { grid-template-columns: 1fr; }
    .band { flex-direction: column; align-items: flex-start; }
    .topnav { gap: 12px; }
    .topnav a:not(:first-child) { display: none; }
    .article-hero { padding: 32px 26px; }
    .stats { gap: 18px; }
}