:root {
  --ink: #123b3b;
  --ink-deep: #092d2d;
  --teal: #0d9488;
  --teal-dark: #0b766d;
  --mint: #ecfdfa;
  --mint-strong: #d7f5ee;
  --cream: #fffdf8;
  --paper: #ffffff;
  --line: #d7e8e5;
  --muted: #607875;
  --orange: #d65a13;
  --orange-pale: #fff0e5;
  --error: #b42318;
  --shadow: 0 18px 44px rgba(14, 63, 60, 0.12);
  --radius: 16px;
  --container: min(1180px, calc(100% - 40px));
  color: var(--ink);
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--cream); }
body { margin: 0; min-width: 320px; background: var(--cream); color: var(--ink); line-height: 1.6; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.18; letter-spacing: -0.035em; }
button:focus-visible, a:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid rgba(13, 148, 136, 0.45); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -4rem; left: 1rem; z-index: 100; padding: 0.75rem 1rem; background: var(--ink-deep); color: white; border-radius: 8px; transition: top 180ms ease; }
.skip-link:focus { top: 1rem; }
.container { width: var(--container); margin-inline: auto; }
.eyebrow { margin-bottom: 0.7rem; color: var(--teal-dark); font-size: 0.78rem; font-weight: 750; letter-spacing: 0.12em; text-transform: uppercase; }

.site-header { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; width: 100%; min-height: 72px; padding: 0 5vw; background: rgba(255, 253, 248, 0.94); border-bottom: 1px solid rgba(215, 232, 229, 0.9); backdrop-filter: blur(12px); }
.brand { display: inline-flex; align-items: center; gap: 0.65rem; color: var(--ink-deep); font-size: 1.12rem; font-weight: 800; letter-spacing: -0.04em; white-space: nowrap; }
.brand__mark { display: grid; width: 32px; height: 32px; place-items: center; border-radius: 9px; background: var(--teal); color: #fff; font-size: 0.86rem; letter-spacing: 0; }
.main-nav { display: flex; gap: 2rem; margin-left: 8vw; font-size: 0.93rem; font-weight: 650; }
.main-nav a { color: #52706d; transition: color 180ms ease; }
.main-nav a:hover { color: var(--teal-dark); }
.header-actions { display: flex; align-items: center; gap: 0.75rem; }
.session-badge { padding: 0.3rem 0.65rem; border: 1px solid var(--mint-strong); border-radius: 99px; color: var(--teal-dark); background: var(--mint); font-size: 0.78rem; font-weight: 700; }
.text-button { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 0 0.5rem; border: 0; background: transparent; color: var(--ink); font-size: 0.9rem; font-weight: 700; }
.button { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; border: 1px solid var(--teal); border-radius: 10px; padding: 0.65rem 1.1rem; background: var(--teal); color: white; font-weight: 750; line-height: 1; transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease; }
.button:hover { background: var(--teal-dark); box-shadow: 0 8px 18px rgba(13, 148, 136, 0.2); transform: translateY(-1px); }
.button:disabled { cursor: not-allowed; opacity: 0.55; transform: none; box-shadow: none; }
.button--small { min-height: 40px; padding-inline: 1rem; font-size: 0.88rem; }
.button--wide { width: 100%; }
.button--outline { border-color: var(--teal); background: white; color: var(--teal-dark); }
.button--outline:hover { background: var(--mint); }
.button--ghost { min-width: 110px; border-color: transparent; background: var(--mint); color: var(--teal-dark); font-size: 0.86rem; }
.button--ghost:hover { background: var(--mint-strong); box-shadow: none; }

.hero { overflow: hidden; background: var(--mint); border-bottom: 1px solid var(--mint-strong); }
.hero__content { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr); gap: clamp(2.5rem, 7vw, 7rem); min-height: 530px; padding-top: clamp(3.5rem, 7vw, 6.5rem); padding-bottom: 4.2rem; align-items: center; }
.hero__copy h1 { max-width: 700px; margin-bottom: 1.35rem; color: var(--ink-deep); font-size: clamp(2.6rem, 5vw, 5.15rem); font-weight: 770; }
.hero__copy h1 em { color: var(--teal); font-family: Georgia, "Noto Serif SC", serif; font-weight: 500; }
.hero__description { max-width: 590px; margin-bottom: 1.8rem; color: #476966; font-size: 1.08rem; }
.search-box { display: flex; max-width: 580px; min-height: 60px; overflow: hidden; border: 1px solid rgba(13, 148, 136, 0.22); border-radius: 12px; background: white; box-shadow: 0 10px 25px rgba(15, 75, 70, 0.08); }
.search-box input { width: 100%; border: 0; padding: 0 1.1rem; color: var(--ink); outline: none; }
.search-box input::placeholder { color: #8aa5a1; }
.search-box button { min-width: 108px; border: 0; padding: 0 1rem; background: var(--teal); color: white; font-weight: 750; }
.hero__note { margin-top: 0.85rem; color: #668582; font-size: 0.82rem; }
.hero__feature { position: relative; min-height: 355px; padding: 1.6rem; overflow: hidden; background: var(--ink-deep); box-shadow: var(--shadow); color: white; }
.hero__feature-label { position: relative; margin-bottom: 0.65rem; color: #a5e4d7; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; }
.hero__feature-art { position: relative; height: 150px; margin-bottom: 1.1rem; overflow: hidden; background: #12514e; }
.hero__feature-art span { position: absolute; z-index: 2; top: 0.3rem; right: 0.55rem; color: rgba(255,255,255,0.9); font-family: Georgia, serif; font-size: 5.6rem; line-height: 1; }
.hero__feature-art i { position: absolute; left: 1.2rem; bottom: -1.5rem; display: block; width: 160px; height: 160px; border: 26px solid #e4b168; border-radius: 50%; }
.hero__feature-art b { position: absolute; right: 5rem; bottom: 1.8rem; display: block; width: 84px; height: 9px; background: #5ce0c9; transform: rotate(-26deg); }
.hero__feature h2 { position: relative; margin-bottom: 0.45rem; font-size: 1.5rem; }
.hero__feature > p:not(.hero__feature-label) { position: relative; margin-bottom: 0.9rem; color: #bcdbd6; font-size: 0.89rem; }
.hero__feature a { position: relative; color: #fff; font-size: 0.9rem; font-weight: 750; }
.hero__feature a span { margin-left: 0.35rem; color: #5ce0c9; }

.trust-strip { border-bottom: 1px solid var(--line); background: var(--paper); }
.trust-strip__inner { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; padding: 1.15rem 0; }
.trust-strip p { margin: 0; color: #52706d; font-size: 0.88rem; font-weight: 650; text-align: center; }
.trust-strip span { margin-right: 0.45rem; color: var(--teal); font-family: Georgia, serif; font-size: 1.1rem; }

.catalog { padding: 5.5rem 0 6.5rem; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin-bottom: 1.75rem; }
.section-heading h2, .section-block h2, .learning-path h2 { margin: 0; color: var(--ink-deep); font-size: clamp(2rem, 3.2vw, 3rem); }
.section-heading > p { margin: 0 0 0.4rem; color: var(--muted); font-size: 0.86rem; }
.filters { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-bottom: 2rem; }
.filter { min-height: 39px; border: 1px solid var(--line); border-radius: 99px; padding: 0.35rem 0.85rem; background: transparent; color: #4a6e69; font-size: 0.86rem; font-weight: 650; transition: background 180ms ease, border-color 180ms ease, color 180ms ease; }
.filter:hover, .filter.is-active { border-color: var(--teal); background: var(--teal); color: white; }
.course-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.35rem; }
.course-card { display: flex; min-width: 0; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); transition: box-shadow 200ms ease, transform 200ms ease; }
.course-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.course-card__image { position: relative; display: block; aspect-ratio: 1.54; overflow: hidden; background: var(--mint-strong); }
.course-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform 300ms ease; }
.course-card:hover .course-card__image img { transform: scale(1.035); }
.course-card__tag { position: absolute; left: 0.75rem; top: 0.75rem; padding: 0.2rem 0.5rem; border-radius: 5px; background: rgba(9,45,45,0.86); color: white; font-size: 0.72rem; font-weight: 650; }
.course-card__body { display: flex; flex: 1; flex-direction: column; padding: 1rem; }
.course-card__meta { display: flex; gap: 0.5rem; margin-bottom: 0.45rem; color: var(--muted); font-size: 0.75rem; }
.course-card__meta span + span::before { content: '·'; margin-right: 0.5rem; }
.course-card h3 { margin-bottom: 0.55rem; color: var(--ink-deep); font-size: 1.08rem; }
.course-card h3 a:hover { color: var(--teal-dark); }
.course-card p { display: -webkit-box; overflow: hidden; margin-bottom: 1.05rem; color: #66817e; font-size: 0.82rem; line-height: 1.65; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.course-card__footer { display: flex; align-items: end; justify-content: space-between; gap: 0.5rem; margin-top: auto; color: var(--muted); font-size: 0.78rem; }
.course-card__footer strong { color: var(--orange); font-size: 1.08rem; font-variant-numeric: tabular-nums; }
.empty-state, .not-found { padding: 4rem 1.5rem; border: 1px dashed #a5c9c3; text-align: center; }
.empty-state p { color: var(--muted); }

.learning-path { padding: 5.5rem 0; background: var(--ink-deep); color: white; }
.learning-path .eyebrow { color: #70d9c7; }
.learning-path h2 { color: white; }
.learning-path__grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(2.5rem, 9vw, 8rem); }
.path-list { border-top: 1px solid rgba(203,240,232,0.28); }
.path-list a { display: grid; grid-template-columns: 2.8rem 1fr auto; gap: 0.9rem; align-items: center; min-height: 92px; border-bottom: 1px solid rgba(203,240,232,0.28); transition: padding 180ms ease, background 180ms ease; }
.path-list a:hover { padding-left: 0.75rem; background: rgba(255,255,255,0.04); }
.path-list span { color: #70d9c7; font-family: Georgia, serif; font-size: 1.15rem; }
.path-list strong { display: block; font-size: 1.08rem; }
.path-list small { display: block; margin-top: 0.12rem; color: #a8c8c2; font-size: 0.78rem; }
.path-list i { color: #70d9c7; font-size: 1.25rem; font-style: normal; }
.site-footer { padding: 2.6rem 0; background: #062322; color: white; }
.site-footer__inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 3rem; }
.brand--light { color: white; }.brand--light .brand__mark { background: #5ccfbf; color: var(--ink-deep); }
.site-footer__inner > div > p { margin: 0.75rem 0 0; color: #a9c6c1; font-size: 0.85rem; }
.footer-meta { max-width: 700px; }.footer-meta .footer-note { margin: 0; color: #a9c6c1; font-size: 0.78rem; line-height: 1.75; }.footer-note a, .footer-record a { color: #72dbc9; text-decoration: underline; }.footer-meta .footer-record { margin: 0.55rem 0 0; color: #a9c6c1; font-size: 0.78rem; }

.breadcrumb { display: flex; overflow: hidden; gap: 0.5rem; padding-top: 1.2rem; padding-bottom: 1.2rem; color: var(--muted); font-size: 0.8rem; white-space: nowrap; }.breadcrumb a:hover { color: var(--teal-dark); }.breadcrumb strong { overflow: hidden; text-overflow: ellipsis; }
.course-hero { overflow: hidden; background: var(--mint); border-top: 1px solid var(--mint-strong); border-bottom: 1px solid var(--mint-strong); }.course-hero__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, 0.8fr); gap: clamp(2rem, 7vw, 6.5rem); align-items: center; padding-top: 3.6rem; padding-bottom: 3.6rem; }.course-hero h1 { max-width: 660px; margin-bottom: 1rem; color: var(--ink-deep); font-size: clamp(2.35rem, 4.5vw, 4.25rem); }.course-hero__summary { max-width: 610px; margin-bottom: 1.25rem; color: #4d6d69; font-size: 1.08rem; }.course-stats { display: flex; flex-wrap: wrap; gap: 0.8rem; color: #436561; font-size: 0.84rem; }.course-stats span + span { padding-left: 0.8rem; border-left: 1px solid #a9d3cc; }.instructor-line { margin: 1.4rem 0 0; color: #567571; font-size: 0.9rem; }.instructor-line strong { color: var(--ink); }.course-hero__cover { aspect-ratio: 1.45; overflow: hidden; box-shadow: 18px 18px 0 #bfeee6; }.course-hero__cover img { width: 100%; height: 100%; object-fit: cover; }
.course-layout { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: clamp(2rem, 5vw, 5rem); padding-top: 4rem; padding-bottom: 5rem; }.course-content { min-width: 0; }.section-block { padding-bottom: 2.8rem; margin-bottom: 2.8rem; border-bottom: 1px solid var(--line); }.section-block > .eyebrow { margin-bottom: 0.45rem; }.section-block h2 { margin-bottom: 1.35rem; font-size: clamp(1.7rem, 2.5vw, 2.3rem); }.outcome-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem 1.5rem; }.outcome-list p { display: flex; gap: 0.65rem; margin: 0; color: #4d6d69; font-size: 0.94rem; }.outcome-list span, .purchase-card li span { color: var(--teal); font-weight: 800; }.preview-block { display: grid; grid-template-columns: 1fr; gap: 1rem; }.preview-block video { width: 100%; max-height: 380px; background: #092d2d; }.media-note { margin: 0; color: var(--muted); font-size: 0.78rem; }.chapters { border-top: 1px solid var(--line); }.chapters details { border-bottom: 1px solid var(--line); }.chapters summary { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 0; color: var(--ink-deep); font-weight: 750; cursor: pointer; list-style: none; }.chapters summary::-webkit-details-marker { display: none; }.chapters summary span { color: var(--muted); font-size: 0.78rem; font-weight: 500; }.chapters ul { display: grid; gap: 0.65rem; margin: 0; padding: 0 0 1rem; list-style: none; color: #5d7a76; font-size: 0.88rem; }.chapters li { display: flex; gap: 0.7rem; }.chapters li span { display: inline-grid; width: 31px; height: 20px; place-items: center; border: 1px solid #aad6ce; border-radius: 4px; color: var(--teal-dark); font-size: 0.62rem; }.instructor-card { display: grid; grid-template-columns: 56px 1fr; gap: 1rem; align-items: start; border-bottom: 0; }.instructor-avatar { display: grid; width: 56px; height: 56px; place-items: center; border-radius: 50%; background: var(--orange-pale); color: var(--orange); font-family: Georgia, serif; font-size: 1.45rem; font-weight: 700; }.instructor-card h2 { margin-bottom: 0.45rem; font-size: 1.45rem; }.instructor-card > div > p:last-child { margin: 0; color: var(--muted); font-size: 0.9rem; }
.purchase-card { position: sticky; top: 92px; height: fit-content; padding: 1.45rem; border: 1px solid var(--line); border-radius: 14px; background: white; box-shadow: 0 12px 32px rgba(15, 74, 69, 0.07); }.purchase-card__tag { margin-bottom: 0.65rem; color: var(--teal-dark); font-size: 0.78rem; font-weight: 750; }.purchase-card > div:not(.order-success) { display: flex; align-items: baseline; gap: 0.65rem; }.purchase-card > div strong { color: var(--orange); font-size: 2.1rem; font-variant-numeric: tabular-nums; }.purchase-card del { color: #92a6a3; font-size: 0.86rem; }.purchase-card > p:not(.purchase-card__tag):not(.purchase-card__hint) { margin: 0.65rem 0 1.2rem; color: var(--muted); font-size: 0.84rem; }.purchase-card__hint { margin: 0.7rem 0 1rem; color: #718d89; font-size: 0.76rem; text-align: center; }.purchase-card ul { display: grid; gap: 0.55rem; margin: 1.25rem 0 0; padding: 1rem 0 0; border-top: 1px solid var(--line); list-style: none; color: #55726e; font-size: 0.8rem; }.purchase-card li { display: flex; gap: 0.5rem; }.order-success { display: grid; gap: 0.4rem; padding: 0.9rem; border: 1px solid var(--mint-strong); border-radius: 10px; background: var(--mint); color: var(--teal-dark); }.order-success strong { font-size: 0.95rem; }.order-success span { font-size: 0.74rem; font-variant-numeric: tabular-nums; }.order-success p { margin: 0; font-size: 0.75rem; }
.checkout-panel { position: fixed; z-index: 50; inset: 0; display: grid; place-items: center; padding: 1.25rem; background: rgba(3, 32, 30, 0.56); animation: fade-in 180ms ease both; }.checkout-panel__box { position: relative; width: min(480px, 100%); padding: 2rem; background: var(--cream); box-shadow: var(--shadow); animation: rise-in 220ms ease both; }.checkout-panel__box h2 { margin-bottom: 1.4rem; color: var(--ink-deep); font-size: 2rem; }.checkout-panel__box > p:not(.eyebrow) { color: var(--muted); font-size: 0.88rem; }.close-button { position: absolute; right: 0.75rem; top: 0.65rem; display: grid; width: 44px; height: 44px; place-items: center; border: 0; background: transparent; color: var(--muted); font-size: 1.75rem; }.checkout-line { display: flex; justify-content: space-between; gap: 1rem; padding: 0.9rem 0; margin-bottom: 0.85rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }.checkout-line strong { color: var(--orange); font-size: 1.35rem; }

.auth-page { display: grid; min-height: calc(100dvh - 72px); grid-template-columns: 0.92fr 1.08fr; }.auth-page__art { display: flex; min-height: 100%; flex-direction: column; justify-content: space-between; padding: 3rem clamp(2rem, 6vw, 6.5rem); overflow: hidden; background: var(--ink-deep); color: white; }.auth-page__art .eyebrow { color: #7ce1cf; }.auth-page__art h1 { margin-bottom: 1.2rem; font-size: clamp(3rem, 5vw, 5.8rem); }.auth-page__art p:not(.eyebrow) { max-width: 390px; color: #b4d3cd; }.auth-page__index { align-self: end; color: rgba(112, 217, 199, 0.85); font-family: Georgia, serif; font-size: clamp(5rem, 12vw, 10rem); line-height: 0.7; }.auth-page__form-wrap { display: flex; width: min(470px, calc(100% - 48px)); flex-direction: column; justify-content: center; margin: 0 auto; padding: 3rem 0; }.back-link { margin-bottom: 2.2rem; color: #5d7975; font-size: 0.88rem; font-weight: 650; }.back-link:hover { color: var(--teal-dark); }.auth-card { width: 100%; }.auth-tabs { display: flex; gap: 1.5rem; margin-bottom: 2.4rem; border-bottom: 1px solid var(--line); }.auth-tabs a { padding: 0 0 0.75rem; margin-bottom: -1px; border-bottom: 2px solid transparent; color: var(--muted); font-size: 0.95rem; font-weight: 700; }.auth-tabs a.is-active { border-color: var(--teal); color: var(--ink-deep); }.auth-kicker { margin-bottom: 0.45rem; color: var(--teal-dark); font-size: 0.84rem; font-weight: 750; }.auth-card h2 { margin-bottom: 0.7rem; color: var(--ink-deep); font-size: 2.4rem; }.auth-description { margin-bottom: 1.7rem; color: var(--muted); font-size: 0.9rem; }.auth-card label { display: block; margin: 1rem 0 0.45rem; color: #365551; font-size: 0.84rem; font-weight: 700; }.auth-card input { width: 100%; min-height: 50px; border: 1px solid #bfd7d3; border-radius: 9px; padding: 0.65rem 0.85rem; background: white; color: var(--ink-deep); }.auth-card input:focus { border-color: var(--teal); outline: 3px solid rgba(13,148,136,0.14); }.code-input { display: grid; grid-template-columns: 1fr auto; gap: 0.6rem; }.form-hint { margin: 0.65rem 0; color: #67827e; font-size: 0.78rem; }.form-hint strong { color: var(--teal-dark); font-variant-numeric: tabular-nums; }.form-error { min-height: 1.4rem; margin: 0.15rem 0 0.65rem; color: var(--error); font-size: 0.82rem; }.auth-consent { margin: 1rem 0 0; color: #7a918e; font-size: 0.76rem; text-align: center; }
.loading { display: grid; min-height: 55vh; place-content: center; gap: 0.8rem; color: var(--muted); text-align: center; }.loading span { display: block; width: 34px; height: 34px; margin: 0 auto; border: 3px solid var(--mint-strong); border-top-color: var(--teal); border-radius: 50%; animation: spin 700ms linear infinite; }.not-found { margin-top: 5rem; }.not-found h1 { color: var(--ink-deep); }.not-found p { color: var(--muted); }.toast { position: fixed; z-index: 120; right: 1rem; bottom: 1rem; max-width: min(390px, calc(100% - 2rem)); padding: 0.75rem 1rem; border-radius: 9px; background: var(--ink-deep); box-shadow: var(--shadow); color: white; font-size: 0.86rem; opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity 180ms ease, transform 180ms ease; }.toast.is-visible { opacity: 1; transform: translateY(0); }.toast--error { background: var(--error); }
@keyframes spin { to { transform: rotate(360deg); } } @keyframes fade-in { from { opacity: 0; } to { opacity: 1; } } @keyframes rise-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 1000px) { .course-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }.course-layout { grid-template-columns: minmax(0, 1fr) 290px; gap: 2rem; }.main-nav { margin-left: 3vw; }.auth-page__art { padding-inline: 3rem; } }
@media (max-width: 780px) { :root { --container: min(100% - 32px, 1180px); }.site-header { min-height: 64px; padding-inline: 1rem; }.main-nav { display: none; }.header-actions { gap: 0.35rem; }.session-badge { display: none; }.hero__content, .course-hero__grid, .learning-path__grid, .auth-page { grid-template-columns: 1fr; }.hero__content { gap: 2.4rem; min-height: auto; padding-top: 4rem; }.hero__feature { min-height: 290px; }.course-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.85rem; }.catalog { padding-block: 3.8rem; }.trust-strip__inner { grid-template-columns: 1fr; gap: 0.4rem; }.learning-path { padding-block: 3.8rem; }.site-footer__inner { grid-template-columns: 1fr; gap: 1.5rem; }.course-hero__grid { gap: 2rem; padding-block: 2.5rem; }.course-hero__cover { max-width: 620px; box-shadow: 10px 10px 0 #bfeee6; }.course-layout { grid-template-columns: 1fr; padding-top: 2.5rem; }.purchase-card { position: static; grid-row: 1; }.course-content { grid-row: 2; }.auth-page__art { min-height: 360px; padding: 2rem; }.auth-page__index { display: none; }.auth-page__form-wrap { width: min(100% - 40px, 470px); padding: 2.5rem 0; }.auth-page__art h1 { font-size: 3.25rem; }.outcome-list { grid-template-columns: 1fr; }.section-heading { align-items: start; flex-direction: column; }.course-card h3 { font-size: 1rem; }.course-card__body { padding: 0.8rem; } }
@media (max-width: 460px) { .brand { font-size: 1rem; }.brand__mark { width: 29px; height: 29px; }.text-button { padding-inline: 0.2rem; }.button--small { padding-inline: 0.65rem; }.hero__copy h1 { font-size: 2.7rem; }.search-box { min-height: 54px; }.search-box button { min-width: 88px; font-size: 0.85rem; }.course-grid { grid-template-columns: 1fr; }.course-card { display: grid; grid-template-columns: 42% 58%; }.course-card__image { height: 100%; }.course-card__body { min-height: 190px; }.course-card__footer { margin-top: auto; }.course-stats span + span { padding-left: 0; border-left: 0; }.course-hero h1 { font-size: 2.65rem; }.code-input { grid-template-columns: 1fr; }.button--ghost { width: 100%; }.auth-card h2 { font-size: 2rem; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 1ms !important; transition-duration: 1ms !important; } }

/* 会员、订单与支付（支付只展示不可用状态，不接支付通道） */
.member-page { min-height: calc(100dvh - 72px); padding: 3.2rem 0 5.5rem; background: linear-gradient(180deg, var(--mint) 0, var(--cream) 360px); }
.member-hero { padding: clamp(1.6rem, 3vw, 2.4rem); margin-bottom: 1.5rem; background: var(--ink-deep); box-shadow: var(--shadow); color: white; }
.member-hero .eyebrow { color: #78dfce; }.member-hero h1 { margin-bottom: 0.55rem; font-size: clamp(2rem, 3.8vw, 3.25rem); }.member-hero p { max-width: 680px; margin: 0; color: #b5d5cf; }
.member-layout { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 2.25rem; align-items: start; }.member-nav { display: grid; gap: 0.45rem; padding: 0.7rem; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,0.86); }.member-nav a, .member-nav button { padding: 0.65rem 0.75rem; border: 0; border-radius: 8px; background: transparent; color: #53736e; font-size: 0.9rem; font-weight: 700; text-align: left; }.member-nav a:hover, .member-nav a.is-active, .member-nav button:hover { background: var(--mint); color: var(--teal-dark); }.member-content { min-width: 0; }.member-content h2 { margin-bottom: 1.2rem; color: var(--ink-deep); font-size: clamp(1.65rem, 2.5vw, 2.25rem); }
.member-stats { display: flex; flex-wrap: wrap; gap: 1.15rem; margin-top: 1.05rem; color: #b5d5cf; font-size: 0.82rem; }.member-stats span { display: inline-flex; align-items: baseline; gap: 0.35rem; }.member-stats strong { color: #7ce1cf; font-size: 1.35rem; font-variant-numeric: tabular-nums; }
.order-list { display: grid; gap: 0.95rem; }.order-card { display: grid; grid-template-columns: 150px minmax(0, 1fr) auto; gap: 1.1rem; align-items: center; padding: 0.8rem; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); }.order-card__image { align-self: stretch; min-height: 106px; overflow: hidden; border-radius: 9px; background: var(--mint-strong); }.order-card__image img { width: 100%; height: 100%; object-fit: cover; }.order-card__body { min-width: 0; }.order-card__meta { margin-bottom: 0.35rem; color: var(--muted); font-size: 0.76rem; }.order-card h3 { margin-bottom: 0.35rem; color: var(--ink-deep); font-size: 1.08rem; }.order-card h3 a:hover { color: var(--teal-dark); }.order-card__id { margin: 0; overflow: hidden; color: #78908d; font-size: 0.72rem; text-overflow: ellipsis; white-space: nowrap; }.order-card__aside { display: grid; justify-items: end; gap: 0.65rem; padding: 0.3rem 0.35rem 0.3rem 0; }.order-card__amount { color: var(--orange); font-size: 1.25rem; font-weight: 800; font-variant-numeric: tabular-nums; }.order-status { display: inline-flex; width: fit-content; padding: 0.2rem 0.48rem; border-radius: 5px; background: var(--orange-pale); color: var(--orange); font-size: 0.72rem; font-weight: 750; }.order-status--paid { background: var(--mint); color: var(--teal-dark); }.empty-card { padding: 2.25rem 1.5rem; border: 1px dashed #a5c9c3; border-radius: 12px; background: rgba(255,255,255,0.62); text-align: center; }.empty-card p { margin: 0.45rem 0 1rem; color: var(--muted); }
.payment-page { min-height: calc(100dvh - 72px); padding: 4.2rem 0 6rem; background: linear-gradient(180deg, var(--mint), var(--cream) 390px); }.payment-shell { width: min(760px, var(--container)); margin: 0 auto; }.payment-shell > .back-link { display: inline-block; margin-bottom: 1.3rem; }.payment-card { padding: clamp(1.35rem, 4vw, 2.5rem); border: 1px solid var(--line); background: var(--paper); box-shadow: var(--shadow); }.payment-card h1 { margin-bottom: 0.55rem; color: var(--ink-deep); font-size: clamp(2rem, 4vw, 3rem); }.payment-card > p:not(.eyebrow) { color: var(--muted); }.payment-order { display: grid; grid-template-columns: 100px minmax(0, 1fr) auto; gap: 1rem; align-items: center; padding: 0.9rem; margin: 1.5rem 0; border: 1px solid var(--line); border-radius: 10px; background: #fbfefd; }.payment-order__image { width: 100px; height: 72px; overflow: hidden; border-radius: 7px; background: var(--mint-strong); }.payment-order__image img { width: 100%; height: 100%; object-fit: cover; }.payment-order h2 { margin: 0 0 0.25rem; color: var(--ink-deep); font-size: 1rem; }.payment-order p { margin: 0; color: var(--muted); font-size: 0.77rem; }.payment-order strong { color: var(--orange); font-size: 1.25rem; font-variant-numeric: tabular-nums; white-space: nowrap; }.payment-unavailable { padding: 1.15rem; border: 1px solid #f2c7aa; border-radius: 10px; background: var(--orange-pale); }.payment-unavailable h2 { margin: 0 0 0.35rem; color: #9f4210; font-size: 1.2rem; }.payment-unavailable p { margin: 0; color: #88542f; font-size: 0.88rem; }.payment-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.4rem; }.payment-help { margin-top: 1.2rem; color: #6f8985; font-size: 0.78rem; }
@media (max-width: 780px) { .member-page { padding-top: 2rem; }.member-layout { grid-template-columns: 1fr; gap: 1.2rem; }.member-nav { grid-template-columns: repeat(2, 1fr); }.order-card { grid-template-columns: 104px minmax(0, 1fr); }.order-card__image { min-height: 102px; }.order-card__aside { grid-column: 2; justify-items: start; grid-auto-flow: column; justify-content: start; align-items: center; padding: 0; }.payment-page { padding-top: 2.4rem; }.payment-card { padding: 1.3rem; } }
@media (max-width: 460px) { .member-hero { padding: 1.35rem; }.member-stats { gap: 0.6rem; }.order-card { grid-template-columns: 86px minmax(0, 1fr); gap: 0.75rem; }.order-card__image { min-height: 95px; }.payment-order { grid-template-columns: 70px minmax(0, 1fr); }.payment-order__image { width: 70px; height: 58px; }.payment-order strong { grid-column: 2; }.payment-actions .button { width: 100%; } }