/* Shared visual system for every public page. The admin shell keeps its own controls. */
:root {
  --canvas: #fbf8f3;
  --paper: #fffdfa;
  --ink: #171614;
  --muted: #77716a;
  --line: #e6dfd6;
  --accent: #ed6b2f;
  --soft: #f3ede5;
  --radius: 12px;
  --shadow: 0 10px 24px rgba(23, 22, 20, .06);
}
html, body { background: var(--canvas); color: var(--ink); }
body { font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; }
.nav-bar { max-width: 1240px; margin: 0 auto; padding: 14px 24px; min-height: 72px; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: rgba(251,248,243,.94); box-shadow: none; }
.brand { gap: 10px; font-size: 16px; }
.brand__mark { width: 34px; height: 34px; border: 3px solid var(--accent); border-radius: 50%; background: transparent; box-shadow: none; color: var(--ink); }
.nav-links { gap: 24px; }
.nav-links a { padding: 6px 0; border-radius: 0; color: var(--muted); font-size: 14px; font-weight: 500; }
.nav-links a:hover, .nav-links a.is-hot { color: var(--ink); background: transparent; }
.nav-links a.is-hot em { display: none; }
.nav-search { min-width: 190px; border: 1px solid var(--line); border-radius: 24px; background: var(--paper); box-shadow: none; }
.theme-btn { width: 38px; height: 38px; border: 1px solid var(--line); background: var(--paper); box-shadow: none; }
.cta { border: 1px solid var(--ink); border-radius: 24px; background: var(--ink); color: #fff; box-shadow: none; }
.cta--coral { background: var(--accent); border-color: var(--accent); }
.cta--sky { background: var(--paper); color: var(--ink); border-color: var(--ink); }
.wrap, .page-head, .account-shell, .detail { max-width: 1180px; }
.page-head, .account-shell, .detail { padding-top: 54px; }
.section-kicker, .eyebrow { color: var(--accent); letter-spacing: .08em; }
.card, .account-card, .panel, .sidecard .card, .verdict, .install, .beginner-guide__panel, .project-tutorial, .copy-box { border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); box-shadow: none; }
.card:hover { transform: translateY(-2px); border-color: var(--ink); box-shadow: var(--shadow); }
.pill { border: 1px solid var(--line); box-shadow: none; background: transparent; color: var(--muted); }
.pill.is-on { background: var(--ink); color: #fff; border-color: var(--ink); }
.page-search input, .nav-search, .form input, .form textarea, .form select { border-color: var(--line); background: var(--paper); }
.account-notice { border: 1px solid #f2b397; border-radius: var(--radius); background: #fff1e9; }
.detail h1, .page-head h1, .account-head h1 { letter-spacing: -.04em; }
.detail-art { border: 1px solid var(--line); border-radius: var(--radius); background: var(--soft); }
.prompt { border: 1px solid var(--line); border-radius: 10px; background: var(--paper); }
.prompt button { color: var(--accent); }
.meta-cell { border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); box-shadow: none; }
.side-box, .sidecard .card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.footer { border-top: 1px solid var(--line); }
@media (max-width: 760px) {
  .nav-bar { padding: 12px 16px; }
  .nav-links { display: none; }
  .nav-search { min-width: 0; flex: 1; }
}

/* Shared page surfaces: keep secondary routes in the same quiet visual system as home. */
.auth-container, .membership-head, .member-overview, .account-shell, .page-head, .crumbs, .section { position: relative; z-index: 1; }
.auth-container { max-width: 1180px; margin: 0 auto; padding: 54px 24px 76px; display: grid; grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr); gap: 22px; }
.auth-left, .auth-right { width: auto; }
.auth-hero, .auth-card, .qr-section, .perk-card, .plan, .member-overview__panel, .account-card { border: 1px solid var(--line) !important; border-radius: var(--radius) !important; background: var(--paper) !important; box-shadow: none !important; }
.auth-hero { padding: 30px !important; background: var(--soft) !important; }
.auth-card { padding: 30px !important; }
.auth-hero h1, .auth-card h2, .membership-head h1, .account-head h1, .page-head h1 { letter-spacing: -.04em; }
.auth-tabs { border: 1px solid var(--line) !important; background: var(--soft) !important; }
.auth-tabs button.is-active { background: var(--ink) !important; }
.auth-form input, .page-search input { border: 1px solid var(--line) !important; border-radius: 9px !important; background: var(--paper) !important; }
.auth-submit, .code-btn { border: 1px solid var(--ink) !important; box-shadow: none !important; }
.qr-section { padding: 22px !important; }
.membership-head { max-width: 900px; padding: 58px 24px 0; }
.membership-head p { color: var(--muted); }
.price-note { border: 1px solid var(--line) !important; border-radius: 24px !important; background: var(--paper) !important; box-shadow: none !important; }
.member-overview { max-width: 1180px; margin: 26px auto 0; }
.member-overview__panel { padding: 24px !important; }
.member-overview__meta span { border: 1px solid var(--line) !important; background: var(--soft) !important; }
.plans { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.plan { padding: 24px !important; }
.page-head { padding-top: 54px; }
.page-head h1 { font-size: clamp(36px, 6vw, 72px) !important; }
.pill { border-radius: 20px !important; }
.account-shell { padding-top: 54px; }
.account-grid { gap: 22px; }
.account-meta div, .account-downloads__item { border: 1px solid var(--line) !important; background: var(--soft) !important; }
.account-notice { border: 1px solid #f2b397 !important; background: #fff1e9 !important; }
@media (max-width: 800px) { .auth-container { grid-template-columns: 1fr; padding-top: 36px; } }

/* Quiet guide pages: generous space, clear media hierarchy, and no heavy frames. */
.guide-page { max-width: 1180px; margin: 0 auto; padding: 72px 32px 104px; }
.guide-hero { max-width: 680px; margin: 0 auto 64px; text-align: center; }
.guide-kicker { margin: 0 0 14px; color: var(--accent); font-size: 13px; font-weight: 700; letter-spacing: .08em; }
.guide-hero h1 { margin: 0; font-size: clamp(40px, 6vw, 72px); line-height: 1.06; letter-spacing: -.045em; font-weight: 800; }
.guide-hero > p:last-child { margin: 20px auto 0; max-width: 520px; color: var(--muted); font-size: 17px; line-height: 1.75; }
.tutorial-list.guide-video-grid { grid-template-columns: minmax(0, 1fr); gap: 0; }
.tutorial-list .tutorial-card.guide-video-card { display: grid; grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr); align-items: center; gap: clamp(24px, 5vw, 72px); min-width: 0; padding: 28px 0; overflow: visible; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: transparent; box-shadow: none; }
.tutorial-list .tutorial-card.guide-video-card:first-child { padding-top: 0; }
.tutorial-list .tutorial-card.guide-video-card:hover { transform: none; box-shadow: none; }
.guide-video-media { position: relative; aspect-ratio: 16 / 9; display: grid; place-items: center; overflow: hidden; border-radius: 8px; background: #e9eef2; }
.tutorial-card[data-tutorial-slot="skill"] .guide-video-media { background: #edf0e7; }
.tutorial-card[data-tutorial-slot="mcp"] .guide-video-media { background: #f2ece6; }
.guide-video-media .tc-cover { width: 100%; height: 100%; object-fit: cover; }
.guide-video-placeholder { color: #626b73; font-size: 14px; }
.guide-video-index { position: absolute; top: 16px; left: 16px; color: rgba(23,22,20,.56); font-size: 12px; font-weight: 700; }
.guide-video-body { min-width: 0; padding: 12px 0; }
.guide-video-body h2 { margin: 0 0 12px; font-size: clamp(26px, 3vw, 38px); line-height: 1.2; font-weight: 650; }
.guide-video-body p { max-width: 560px; margin: 0 0 22px; color: var(--muted); font-size: 16px; line-height: 1.75; }
.guide-video-body .cta { display: inline-flex; min-height: 40px; align-items: center; }
.install-groups { display: grid; gap: 56px; }
.install-group-head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.install-group-head h2 { margin: 0; font-size: 28px; letter-spacing: -.03em; }
.install-group-head span { color: var(--muted); font-size: 14px; }
.install-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.install-card { display: flex; align-items: center; gap: 16px; min-height: 92px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); color: var(--ink); text-decoration: none; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.install-card:hover { transform: translateY(-3px); border-color: var(--ink); box-shadow: 0 14px 30px rgba(23,22,20,.08); }
.install-card .platform-icon { flex: 0 0 42px; display: grid; place-items: center; width: 42px; height: 42px; margin: 0; border-radius: 12px; background: var(--soft); font-size: 21px; font-weight: 800; }
.install-card-copy { display: grid; gap: 4px; min-width: 0; }
.install-card-copy b { font-size: 17px; }
.install-card-copy small { color: var(--muted); font-size: 13px; }
.install-arrow { margin-left: auto; color: var(--muted); font-size: 20px; transition: transform .2s ease, color .2s ease; }
.install-card:hover .install-arrow { color: var(--ink); transform: translate(2px,-2px); }
@media (max-width: 760px) {
  .guide-page { padding: 50px 18px 76px; }
  .guide-hero { margin-bottom: 42px; text-align: left; }
  .guide-hero > p:last-child { margin-left: 0; }
  .guide-video-grid, .install-grid { grid-template-columns: 1fr; }
  .tutorial-list .tutorial-card.guide-video-card { grid-template-columns: minmax(0, 1fr); gap: 18px; padding: 22px 0; }
  .tutorial-list .tutorial-card.guide-video-card:first-child { padding-top: 0; }
  .guide-video-body { padding: 0; }
  .install-group-head { display: block; }
  .install-group-head span { display: block; margin-top: 6px; }
}