:root{--font-sans: "Avenir Next", "SF Pro Text", "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;--bg: #f6f8fb;--surface: #ffffff;--line: #e2e8f0;--text: #0f172a;--muted: #475569;--shadow: 0 14px 36px rgba(15, 23, 42, .08);--maxw: 1100px}*{box-sizing:border-box}body{margin:0;font-family:var(--font-sans);background:linear-gradient(180deg,#f8fafc,#f3f6fb);color:var(--text);line-height:1.85}a{color:inherit;text-decoration:none}.site-header{position:sticky;top:0;z-index:30;backdrop-filter:blur(10px);background:#ffffffe6;border-bottom:1px solid var(--line)}.container{width:min(var(--maxw),calc(100% - 28px));margin:0 auto}.header-inner{height:66px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}.brand img{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;padding:4px;object-fit:contain;flex:0 0 auto}.brand-title{display:block;font-weight:760;font-size:.95rem;line-height:1.24;white-space:normal;overflow:visible;text-overflow:clip}.back-link{font-size:.9rem;color:var(--muted);border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;white-space:nowrap}.lang-switch{display:inline-flex;gap:8px;flex-wrap:wrap;border:1px solid var(--line);background:#fff;border-radius:999px;padding:4px}.lang-btn{border:0;background:transparent;color:var(--muted);border-radius:999px;padding:7px 10px;font-size:.8rem;font-weight:700;cursor:pointer;min-width:40px;white-space:nowrap}.lang-btn.active{background:#0f172a;color:#fff}.hero{padding:28px 0 12px}.hero-card{background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:clamp(22px,4vw,34px)}.eyebrow{display:inline-flex;padding:6px 12px;border-radius:999px;border:1px solid #dbeafe;background:#f0f7ff;color:#1e3a8a;font-size:.82rem;font-weight:700;letter-spacing:.02em;text-transform:uppercase}h1{margin:12px 0 10px;font-size:clamp(22px,3.5vw,36px);line-height:1.2;letter-spacing:-.02em}.meta{color:var(--muted);font-size:.95rem;margin-bottom:16px}.summary{margin:0;color:#334155;background:#f8fbff;border:1px solid #dbeafe;border-radius:14px;padding:14px 16px;font-size:1.02rem}.summary-image{width:min(100%,760px);display:block;margin:16px auto 0;border-radius:14px;border:1px solid #dbeafe;box-shadow:0 10px 24px #0f172a14;object-fit:cover}.article-wrap{padding:12px 0 42px}.article-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 10px 24px #0f172a0f;padding:clamp(18px,3vw,30px)}.article-card p{margin:0 0 16px;color:#1e293b;font-size:1.03rem}@media(max-width:720px){.brand-title{display:none}.header-inner{height:62px}.summary,.article-card p{font-size:.97rem}}