:root {
  --ink: #17231f;
  --pine: #1e6a55;
  --signal: #d43f2d;
  --sun: #f2c84b;
  --paper: #f4f7f2;
  --line: #d8dfd9;
  --muted: #66736e;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Microsoft YaHei UI", "PingFang SC", sans-serif; }
a { color: inherit; }
.agreement-nav { min-height: 70px; display: flex; align-items: center; justify-content: space-between; padding: 0 clamp(20px, 6vw, 96px); color: #f7faf7; background: var(--ink); }
.agreement-brand { display: inline-flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
.agreement-brand > span:last-child { display: block; }
.agreement-brand strong { display: block; font-size: 15px; letter-spacing: .04em; }
.agreement-brand small { display: block; margin-top: 3px; color: rgba(255,255,255,.5); font: 9px Arial, sans-serif; letter-spacing: .14em; }
.brand-mark { position: relative; display: block; width: 26px; height: 31px; flex: none; }
.brand-mark i { position: absolute; inset: 3px; border: 1px solid currentColor; transform: skewY(-9deg); }
.brand-mark i:first-child { translate: -4px 3px; opacity: .4; }
.brand-mark i:nth-child(2) { translate: 0; opacity: .65; }
.brand-mark i:last-child { translate: 4px -3px; background: currentColor; opacity: .9; }
.back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; text-decoration: none; }
.back-link:hover { color: var(--sun); }
.agreement-layout { width: min(1180px, calc(100% - 40px)); display: grid; grid-template-columns: 265px minmax(0, 1fr); gap: clamp(44px, 8vw, 110px); margin: 0 auto; padding: 72px 0 100px; }
.agreement-aside { position: sticky; top: 30px; align-self: start; }
.eyebrow { margin: 0 0 18px; color: var(--pine); font: 10px Arial, sans-serif; letter-spacing: .18em; }
.agreement-aside h1 { margin: 0 0 14px; font-size: clamp(34px, 4vw, 50px); letter-spacing: -.06em; }
.agreement-aside > p:not(.eyebrow) { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.9; }
.agreement-aside nav { display: grid; gap: 9px; margin-top: 30px; padding-top: 24px; border-top: 1px solid var(--line); }
.agreement-aside nav a { color: var(--muted); font-size: 12px; text-decoration: none; }
.agreement-aside nav a:hover { color: var(--signal); }
.agreement-content { min-width: 0; padding: 0 clamp(0px, 2vw, 25px); }
.effective-date { margin: 0 0 40px; color: var(--muted); font: 11px Arial, sans-serif; letter-spacing: .05em; }
.agreement-content section { padding: 0 0 40px; margin: 0 0 40px; border-bottom: 1px solid var(--line); scroll-margin-top: 30px; }
.agreement-content section:last-of-type { margin-bottom: 0; }
.agreement-content h2 { display: flex; align-items: baseline; gap: 14px; margin: 0 0 18px; font-size: 23px; letter-spacing: -.03em; }
.agreement-content h2 span { color: var(--signal); font: 11px Arial, sans-serif; letter-spacing: .08em; }
.agreement-content p, .agreement-content li { color: #4e5c56; font-size: 14px; line-height: 2; }
.agreement-content p { margin: 0 0 13px; }
.agreement-content p:last-child { margin-bottom: 0; }
.agreement-content ul { margin: 10px 0 14px; padding-left: 22px; }
.agreement-content li { padding-left: 4px; margin: 4px 0; }
.notice-section { border-bottom-color: rgba(212,63,45,.35) !important; }
.notice-box { margin: 0 0 18px; padding: 20px 22px; border-left: 4px solid var(--signal); background: #fff9ed; }
.notice-box strong { display: block; margin-bottom: 8px; color: var(--signal); font-size: 15px; }
.notice-box p { margin: 0; }
.agreement-footer-note { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 45px; padding: 22px 0 0; color: var(--muted); border-top: 1px solid var(--ink); font-size: 13px; }
.agreement-footer-note a { color: var(--pine); font-weight: 700; text-decoration: none; white-space: nowrap; }
.agreement-footer-note a:hover { color: var(--signal); }
@media (max-width: 800px) {
  .agreement-layout { grid-template-columns: 1fr; gap: 38px; padding-top: 48px; }
  .agreement-aside { position: static; }
  .agreement-aside nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .agreement-nav { min-height: 62px; padding: 0 16px; }
  .agreement-brand small { display: none; }
  .agreement-brand strong { font-size: 13px; }
  .back-link { font-size: 12px; }
  .agreement-layout { width: min(100% - 32px, 560px); padding-bottom: 64px; }
  .agreement-content h2 { font-size: 20px; }
  .agreement-content p, .agreement-content li { font-size: 13px; line-height: 1.9; }
  .agreement-footer-note { align-items: flex-start; flex-direction: column; gap: 12px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }