:root{--primary:#176B8D;--primary-2:#2187AE;--sky:#55AFD3;--sky-light:#A9D9EA;--sky-soft:#E5F3F8;--navy:#123B50;--navy-2:#0B2938;--navy-dark:#071E2A;--accent:#D97945;--accent-soft:#F7E7DB;--bg:#F5F9FA;--bg-2:#EBF2F4;--bg-3:#FAFCFC;--surface:#fff;--surface-soft:rgba(255,255,255,.86);--text:#203640;--text-2:#60747D;--text-3:#91A0A6;--line:rgba(23,107,141,.10);--line-strong:rgba(23,107,141,.22);--shadow:0 6px 24px rgba(18,59,80,.08);--shadow-hover:0 15px 38px rgba(18,59,80,.14);--radius:10px;--radius-card:14px;--radius-large:20px;--radius-pill:999px;--wrap:1320px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.65 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.wrap{width:min(var(--wrap),calc(100% - 40px));margin:auto}.notice{padding:8px 20px;text-align:center;background:var(--navy-dark);color:#dcebf1;font-size:13px}.site-header{position:sticky;top:0;z-index:50;background:rgba(245,249,250,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.nav{height:70px;display:flex;align-items:center;gap:30px}.brand{display:flex;align-items:center;gap:9px;font-weight:850;font-size:20px;color:var(--navy)}.brand img{width:34px;height:34px;object-fit:cover;border-radius:9px}.desktop-nav{display:flex;gap:22px;margin-right:auto}.desktop-nav a,.nav-actions a{color:var(--text-2);font-weight:650}.desktop-nav a:hover,.nav-actions 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button{border:0;background:var(--navy);color:white;border-radius:var(--radius-pill);padding:0 20px}.hero-visual{position:relative}.hero-visual>img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:30px;box-shadow:var(--shadow-hover)}.floating{position:absolute;background:rgba(255,255,255,.93);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.8);border-radius:16px;padding:14px 16px;box-shadow:var(--shadow)}.floating.top{top:20px;right:-18px}.floating.bottom{bottom:20px;left:-22px}.floating strong{display:block;font-size:20px;color:var(--navy)}.chips{display:flex;gap:10px;flex-wrap:wrap}.chip{padding:9px 14px;border-radius:var(--radius-pill);background:white;border:1px solid var(--line);color:var(--text-2)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-head p{margin:0;color:var(--text-2)}.dark .section-head p{color:#aac0ca}.text-link{font-weight:750;color:var(--primary)}.dark 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