:root { color-scheme: light; --blue: #1769e0; --deep-blue: #0f4fae; --ink: #10233f; --muted: #70809a; --line: #dbe7f8; --wash: #f4f8ff; }
* { box-sizing: border-box; }
html { min-height: 100%; background: #fff; }
body { margin: 0; min-height: 100vh; color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; background: radial-gradient(circle at 50% -10%, #e7f1ff 0, #fff 42%); }
a { color: inherit; text-decoration: none; }
.page-shell { width: min(100% - 40px, 560px); margin: 0 auto; padding: 72px 0 34px; }
.page-header { display: flex; align-items: center; gap: 16px; margin-bottom: 54px; }
.mark { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 14px; color: #fff; background: var(--blue); box-shadow: 0 10px 22px #1769e033; font-size: 25px; font-weight: 700; }
.kicker { margin: 0 0 6px; color: var(--blue); font: 700 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 2px; }
h1 { margin: 0; font-size: clamp(25px, 5vw, 32px); letter-spacing: -.8px; font-weight: 700; }
.section-label { margin-bottom: 14px; color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: .08em; }
.link-list { display: grid; gap: 11px; }
.link-card { display: flex; align-items: center; gap: 15px; min-height: 74px; padding: 14px 18px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.88); box-shadow: 0 4px 14px rgba(31, 84, 150, .04); transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease; }
.link-card:hover { transform: translateY(-2px); border-color: #8eb9f2; box-shadow: 0 10px 24px rgba(31, 84, 150, .1); }
.link-card img { width: 42px; height: 42px; flex: 0 0 42px; object-fit: contain; border-radius: 11px; background: #f1f5fa; }
.link-card > span:nth-child(2) { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.link-card strong { font-size: 15px; font-weight: 700; }
.link-card small { color: var(--muted); font-size: 12px; }
.arrow { margin-left: auto; color: var(--blue); font-size: 21px; line-height: 1; }
.contact { margin-top: 42px; padding-top: 25px; border-top: 1px solid var(--line); }
.contact-list { display: flex; gap: 10px; }
.contact-list a { flex: 1; display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding: 0 15px; border: 1px solid var(--line); border-radius: 10px; color: var(--deep-blue); background: var(--wash); font-size: 13px; font-weight: 600; transition: background .18s, border-color .18s; }
.contact-list a:hover { border-color: #8eb9f2; background: #eaf3ff; }
.contact-list span { color: var(--blue); font-size: 17px; }
footer { margin-top: 48px; color: #9babc1; text-align: center; font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 1.5px; }
footer span { margin: 0 5px; color: #b8cde8; }
@media (max-width: 520px) { .page-shell { padding-top: 42px; } .page-header { margin-bottom: 38px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; } }