:root {
  --bg: #F6EDE4;
  --deep-bg: #E8D8C8;
  --paper: #FFF8F2;
  --soft: #F0E4D6;
  --ink: #1A1612;
  --text: #2A241C;
  --muted: #5A5048;
  --aux: #7A7068;
  --orange: #E07030;
  --copper: #B06030;
  --border: rgba(26,22,18,0.12);
  --accent-border: rgba(224,112,48,0.50);
  --shadow: 0 12px 28px rgba(26,22,18,0.10);
  --max: 960px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; font-size: 15px; line-height: 1.7; overflow-x: hidden; }
body.is-locked { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(224,112,48,0.45); outline-offset: 2px; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 200; background: var(--paper); color: var(--ink); padding: 10px 14px; border: 1px solid var(--orange); }
.skip-link:focus { top: 8px; }
.top-strip { position: fixed; inset: 0 0 auto 0; z-index: 80; height: 20px; background: var(--ink); color: var(--bg); font-size: 12px; }
.top-strip-inner { max-width: var(--max); height: 20px; margin: 0 auto; padding: 0 16px; display: flex; align-items: center; justify-content: space-between; }
.text-button { min-height: 20px; border: 0; padding: 0 3px; background: transparent; color: var(--bg); cursor: pointer; }
.site-header { position: fixed; top: 20px; left: 0; right: 0; z-index: 70; background: var(--paper); }
.mainbar { height: 54px; max-width: var(--max); margin: 0 auto; padding: 0 16px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--orange); }
.brand-link { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; }
.brand-logo { height: 24px; width: auto; max-width: 130px; object-fit: contain; object-position: center; }
.brand-fallback { font-size: 16px; font-weight: 800; letter-spacing: .04em; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.app-link, .menu-button { min-height: 44px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: 4px; background: var(--paper); color: var(--ink); cursor: pointer; font-size: 14px; }
.app-link:hover, .menu-button:hover { border-color: var(--orange); color: var(--copper); }
.menu-button { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.quick-nav { height: 46px; background: var(--paper); border-bottom: 1px solid var(--border); }
.quick-nav-inner { max-width: var(--max); height: 100%; margin: 0 auto; padding: 0 16px; display: flex; align-items: center; gap: 26px; }
.quick-item { min-height: 44px; display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink); }
.quick-square { width: 18px; height: 18px; border: 1px solid var(--ink); border-radius: 2px; background: transparent; }
.quick-item.is-active .quick-square { background: var(--orange); border-color: var(--orange); }
.site-main { padding: 142px 16px 72px; min-height: 70vh; }
.page-wrap { max-width: var(--max); margin: 0 auto; }
.page-head { margin: 26px 0 30px; max-width: 760px; }
.page-kicker { margin: 0 0 6px; color: var(--copper); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
h1, h2, h3 { color: var(--ink); margin-top: 0; }
h1 { font-size: 24px; line-height: 1.3; margin-bottom: 12px; }
h2 { font-size: 20px; line-height: 1.4; margin-bottom: 12px; }
h3 { font-size: 16px; line-height: 1.5; margin-bottom: 8px; }
p { margin: 0 0 14px; }
.lead { font-size: 16px; color: var(--muted); max-width: 740px; }
.section-block { margin: 0 0 28px; }
.paper { background: var(--paper); border: 1px solid var(--border); border-radius: 4px; box-shadow: var(--shadow); }
.soft-box { background: var(--soft); border: 1px solid var(--border); border-radius: 4px; }
.action-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.btn-primary, .btn-secondary { min-height: 42px; padding: 0 18px; border-radius: 4px; display: inline-flex; align-items: center; justify-content: center; font-size: 14px; white-space: nowrap; }
.btn-primary { color: var(--paper); background: linear-gradient(135deg,#1A1612 0%,#E07030 100%); border: 1px solid var(--ink); }
.btn-secondary { color: var(--ink); background: var(--paper); border: 1px solid var(--orange); }
.btn-primary:hover, .btn-secondary:hover { transform: translateY(-1px); }
.media-slot { min-height: 130px; background: var(--soft); border: 1px solid var(--border); border-radius: 4px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.media-slot img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.media-slot.slant-media { height: 176px; max-width: 300px; transform: skewX(-6deg); padding: 10px; }
.media-slot.slant-media img { transform: skewX(6deg); }
.media-slot.app-media { height: 320px; }
.media-slot.banner-media { height: 200px; }
.media-slot.card-media { height: 190px; }
.media-slot.thumb-media { height: 150px; }
.home-intro { padding: 28px 0 18px; }
.orange-index { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 20px; }
.orange-index span { background: var(--orange); color: var(--paper); padding: 8px 12px; border-radius: 3px; font-size: 13px; }
.home-intro .lead { max-width: 720px; }
.slant-list { display: grid; grid-template-columns: minmax(220px, 300px) 1fr; gap: 28px; align-items: center; background: var(--paper); border: 1px solid var(--border); border-radius: 4px; padding: 24px; }
.slant-copy ul, .plain-list, .memo-list ul { margin: 0; padding-left: 20px; }
.double-cards { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
.double-card { background: var(--paper); border: 1px solid var(--border); border-radius: 4px; padding: 20px; min-width: 0; }
.double-card .card-media { margin-bottom: 14px; }
.paper-spreads { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.paper-page { background: var(--paper); border: 1px solid var(--accent-border); padding: 22px; border-radius: 3px; min-height: 220px; position: relative; }
.paper-page::before { content: ""; position: absolute; left: 14px; top: 14px; bottom: 14px; width: 2px; background: rgba(224,112,48,.28); }
.paper-page > * { margin-left: 14px; }
.card-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.info-card { background: var(--paper); border: 1px solid var(--border); border-radius: 4px; padding: 20px; }
.info-card .thumb-media { margin-bottom: 14px; }
.period-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.period-item { padding: 18px; background: var(--soft); border-top: 3px solid var(--orange); border-radius: 3px; }
.status-rail { display: grid; gap: 10px; }
.status-item { display: grid; grid-template-columns: 110px 1fr; gap: 18px; align-items: start; padding: 16px 0; border-bottom: 1px solid var(--border); }
.status-item strong { color: var(--copper); }
.app-split { display: grid; grid-template-columns: minmax(220px, 320px) 1fr; gap: 30px; align-items: center; }
.icon-line { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.icon-slot { width: 48px; height: 48px; flex: 0 0 48px; }
.icon-slot img { width: 100%; height: 100%; object-fit: contain; }
.method-list { display: grid; gap: 12px; }
.method-item { background: var(--paper); border-left: 4px solid var(--orange); padding: 18px 20px; }
.special-list { display: grid; gap: 12px; }
.special-item { display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 18px; border: 1px solid var(--border); background: var(--paper); border-radius: 4px; }
.special-item strong { color: var(--copper); }
.center-cards { max-width: 760px; margin: 0 auto; display: grid; gap: 16px; }
.center-card { text-align: center; background: var(--paper); border: 1px solid var(--border); border-radius: 5px; padding: 24px; }
.center-card p { max-width: 620px; margin-left: auto; margin-right: auto; }
.single-flow { max-width: 760px; margin: 0 auto; }
.single-flow section { padding: 20px 0; border-bottom: 1px solid var(--border); }
.memo-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.memo-list section { background: var(--paper); border: 1px solid var(--border); border-radius: 4px; padding: 20px; }
.terms { display: grid; gap: 16px; }
.terms section { background: var(--paper); border: 1px solid var(--border); padding: 22px; border-radius: 4px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: var(--paper); border: 1px solid var(--border); border-radius: 4px; padding: 20px; }
.contact-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; }
.contact-grid section { background: var(--paper); border: 1px solid var(--border); padding: 20px; border-radius: 4px; }
.about-brand { display: grid; grid-template-columns: 1fr 240px; gap: 24px; align-items: center; }
.note { padding: 16px 18px; background: var(--deep-bg); border-left: 3px solid var(--orange); border-radius: 3px; color: var(--muted); }
.site-footer { background: var(--ink); color: var(--bg); border-top: 1px solid var(--orange); font-size: 13px; }
.footer-inner { max-width: var(--max); margin: 0 auto; padding: 34px 16px 76px; }
.footer-brand { display: grid; grid-template-columns: 220px 1fr; gap: 28px; padding-bottom: 24px; border-bottom: 1px solid rgba(246,237,228,.15); }
.footer-brand-mark { display: flex; align-items: center; gap: 8px; }
.footer-logo, .menu-logo { height: 24px; width: auto; max-width: 120px; object-fit: contain; }
.footer-brand p { color: rgba(246,237,228,.78); margin: 0; }
.footer-groups { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; padding: 26px 0; }
.footer-groups h2 { color: var(--paper); font-size: 14px; margin-bottom: 8px; }
.footer-groups a { display: block; color: rgba(246,237,228,.8); margin: 4px 0; }
.footer-groups a:hover, .footer-bottom a:hover { color: var(--orange); }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 16px; padding-top: 14px; border-top: 1px solid rgba(246,237,228,.15); color: rgba(246,237,228,.72); }
.screen-overlay { position: fixed; inset: 0; z-index: 89; background: rgba(26,22,18,.48); visibility: hidden; pointer-events: none; opacity: 0; transition: opacity .18s ease; }
.screen-overlay.is-visible { visibility: visible; pointer-events: auto; opacity: 1; }
.menu-panel { position: fixed; z-index: 95; top: 82px; left: 50%; width: min(320px, calc(100% - 32px)); max-height: 360px; transform: translate(-50%, -18px); background: var(--paper); border: 1px solid var(--orange); box-shadow: var(--shadow); border-radius: 5px; overflow: auto; visibility: hidden; pointer-events: none; opacity: 0; transition: .18s ease; }
.menu-panel.is-open { visibility: visible; pointer-events: auto; opacity: 1; transform: translate(-50%, 0); }
.menu-panel-head, .search-head { position: sticky; top: 0; z-index: 2; display: flex; align-items: center; justify-content: space-between; background: var(--paper); padding: 12px 14px; border-bottom: 1px solid var(--border); }
.menu-brand { display: flex; align-items: center; gap: 8px; }
.panel-close { min-width: 44px; min-height: 44px; border: 1px solid var(--border); background: var(--paper); color: var(--ink); border-radius: 4px; cursor: pointer; }
.menu-groups { padding: 6px 14px 14px; }
.menu-groups section { padding: 10px 0; border-bottom: 1px solid var(--border); }
.menu-groups section:last-child { border-bottom: 0; }
.menu-groups h2 { font-size: 13px; color: var(--copper); margin: 0 0 5px; }
.menu-groups a { display: grid; grid-template-columns: 72px 1fr; gap: 8px; padding: 7px 0; }
.menu-groups a span { color: var(--muted); font-size: 12px; }
.search-layer { position: fixed; z-index: 94; top: 74px; left: 0; right: 0; visibility: hidden; pointer-events: none; opacity: 0; }
.search-layer.is-open { visibility: visible; pointer-events: auto; opacity: 1; }
.search-card { max-width: 960px; margin: 0 auto; padding: 0 16px 18px; background: var(--paper); border-bottom: 1px solid var(--orange); box-shadow: var(--shadow); }
.search-card > p { margin: 14px 0; color: var(--muted); }
.search-presets { display: flex; gap: 8px; flex-wrap: wrap; }
.search-presets a { min-height: 44px; padding: 0 14px; display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 4px; background: var(--soft); }
.mobile-bottom { display: none; }
@media (max-width: 760px) {
  .quick-nav { display: none; }
  .site-main { padding-top: 94px; padding-bottom: calc(78px + env(safe-area-inset-bottom)); }
  .mainbar { padding-left: 16px; padding-right: 12px; }
  .header-actions { gap: 6px; }
  .app-link, .menu-button { padding: 0 10px; }
  .slant-list, .double-cards, .paper-spreads, .card-pair, .period-row, .app-split, .memo-list, .contact-grid, .about-brand { grid-template-columns: 1fr; }
  .slant-list { gap: 18px; }
  .media-slot.slant-media { max-width: none; width: 100%; }
  .status-item { grid-template-columns: 90px 1fr; gap: 12px; }
  .special-item { grid-template-columns: 1fr; }
  .footer-brand { grid-template-columns: 1fr; gap: 16px; }
  .footer-groups { grid-template-columns: 1fr 1fr; }
  .footer-inner { padding-bottom: calc(84px + env(safe-area-inset-bottom)); }
  .menu-panel { top: 82px; width: 88%; max-height: 360px; }
  .search-layer { top: 20px; bottom: 0; background: var(--ink); color: var(--paper); }
  .search-card { min-height: 100%; background: var(--ink); color: var(--paper); border: 0; padding: 0 16px 30px; }
  .search-head { background: var(--ink); color: var(--paper); border-color: rgba(246,237,228,.16); }
  .search-head strong { color: var(--paper); }
  .search-card > p { color: rgba(246,237,228,.8); }
  .search-layer .panel-close { background: var(--ink); color: var(--paper); border-color: rgba(246,237,228,.3); }
  .search-presets a { background: #2A241C; border-color: rgba(246,237,228,.2); color: var(--paper); }
  .mobile-bottom { position: fixed; z-index: 75; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: repeat(4,1fr); height: calc(48px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom); background: var(--paper); border-top: 1px solid var(--border); }
  .mobile-bottom a { min-height: 48px; display: flex; align-items: center; justify-content: center; font-size: 13px; color: var(--ink); }
  .mobile-bottom a.is-active { background: var(--orange); color: var(--ink); font-weight: 700; }
}
@media (max-width: 420px) {
  .site-main { padding-left: 16px; padding-right: 16px; }
  .orange-index { gap: 6px; }
  .orange-index span { padding: 7px 9px; }
  .footer-groups { grid-template-columns: 1fr 1fr; gap: 12px; }
}