:root {
  --primary: #0f6b61;
  --primary-dark: #0c4f49;
  --primary-light: #e6f1ef;
  --accent: #d9531e;
  --bg: #f4f7f6;
  --card: #ffffff;
  --text: #1f2a28;
  --muted: #6b7a77;
  --border: #e2e9e7;
  --radius: 14px;
  --shadow: 0 6px 22px rgba(15, 60, 54, 0.08);
  --maxw: 1180px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: #fff; border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(0,0,0,0.03);
}
.header__inner { display: flex; align-items: center; gap: 22px; height: 70px; }
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand__logo { width: 40px; height: 40px; flex: none; }
.brand__name { font-weight: 700; font-size: 17px; color: var(--primary-dark); line-height: 1.2; white-space: nowrap; }
.brand__name small { display: block; font-size: 11px; color: var(--muted); font-weight: 400; letter-spacing: .5px; }
.nav { display: flex; gap: 4px; margin-left: 8px; }
.nav a {
  padding: 8px 14px; border-radius: 9px; color: var(--text); font-size: 15px; font-weight: 500;
  transition: background .15s, color .15s;
}
.nav a:hover { background: var(--primary-light); color: var(--primary); }
.nav a.active { background: var(--primary); color: #fff; }
.header__right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.btn {
  border: 1px solid var(--primary); background: var(--primary); color: #fff;
  padding: 9px 18px; border-radius: 10px; font-size: 14px; font-weight: 600;
  transition: filter .15s, background .15s;
}
.btn:hover { filter: brightness(1.06); }
.btn--ghost { background: #fff; color: var(--primary); }
.btn--ghost:hover { background: var(--primary-light); }
.btn--sm { padding: 6px 12px; font-size: 13px; }
.btn--block { width: 100%; }
.btn--danger { background: #b23b2e; border-color: #b23b2e; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.user-menu { position: relative; }
.user-menu__btn { display: flex; align-items: center; gap: 8px; background: var(--primary-light); border: none; padding: 7px 12px; border-radius: 10px; color: var(--primary-dark); font-weight: 600; white-space: nowrap; }
.user-menu__btn svg { width: 16px; height: 16px; flex: none; }
.user-menu__dropdown { position: absolute; right: 0; top: 110%; background: #fff; border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); min-width: 160px; overflow: hidden; display: none; }
.user-menu__dropdown.open { display: block; }
.user-menu__dropdown a, .user-menu__dropdown button { display: block; width: 100%; text-align: left; padding: 11px 16px; background: none; border: none; font-size: 14px; color: var(--text); }
.user-menu__dropdown a:hover, .user-menu__dropdown button:hover { background: var(--bg); }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; padding: 56px 0 64px; }
.hero h1 { font-size: 34px; margin: 0 0 14px; font-weight: 800; }
.hero p { font-size: 16px; opacity: .92; max-width: 640px; margin: 0 0 8px; }
.hero__tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero__tag { background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.22); padding: 7px 14px; border-radius: 20px; font-size: 13px; }
.hero__cta { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero__cta .btn--ghost { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.4); }

/* ---------- Sections ---------- */
.section { padding: 46px 0; }
.section__head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 22px; }
.section__title { font-size: 24px; font-weight: 800; margin: 0; color: var(--primary-dark); }
.section__title span { color: var(--primary); }
.section__sub { color: var(--muted); font-size: 14px; margin-top: 4px; }
.section__more { color: var(--primary); font-weight: 600; font-size: 14px; }
.section--alt { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* module switch cards on home */
.modules { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 8px; }
.module-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); transition: transform .15s, box-shadow .15s; }
.module-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(15,60,54,.12); }
.module-card__icon { width: 52px; height: 52px; color: var(--primary); margin-bottom: 14px; }
.module-card__icon svg { width: 100%; height: 100%; }
.module-card h3 { margin: 0 0 8px; font-size: 20px; }
.module-card p { color: var(--muted); margin: 0 0 16px; font-size: 14px; }

/* ---------- Grid cards ---------- */
.grid { display: grid; gap: 18px; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); transition: transform .15s, box-shadow .15s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(15,60,54,.12); }
.card__img { aspect-ratio: 1/1; background: var(--bg); overflow: hidden; }
.card__img img { width: 100%; height: 100%; object-fit: cover; }
.card__body { padding: 14px 16px 16px; }
.card__cat { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--primary); background: var(--primary-light); padding: 3px 9px; border-radius: 20px; margin-bottom: 8px; }
.card__cat svg { width: 13px; height: 13px; }
.card__title { font-size: 15px; font-weight: 600; margin: 0 0 6px; line-height: 1.4; }
.card__sub { font-size: 13px; color: var(--muted); margin: 0 0 10px; height: 38px; overflow: hidden; }
.card__price { color: var(--accent); font-weight: 700; font-size: 18px; }
.card__price small { color: var(--muted); font-weight: 400; font-size: 12px; text-decoration: line-through; margin-left: 6px; }
.card__meta { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); margin-top: 8px; }
.card__meta svg { width: 13px; height: 13px; }

/* info card */
.info-card .card__img { aspect-ratio: 4/3; }
.info-card .card__pub { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted); margin-top: 8px; }
.info-card .card__pub svg { width: 13px; height: 13px; }

/* ---------- Product detail ---------- */
.detail { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; padding: 34px 0; }
.gallery__main { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; }
.gallery__main img { width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.gallery__thumbs { display: flex; gap: 10px; margin-top: 12px; }
.gallery__thumbs img { width: 76px; height: 76px; object-fit: cover; border: 2px solid transparent; border-radius: 10px; cursor: pointer; background: var(--bg); }
.gallery__thumbs img.active { border-color: var(--primary); }
.detail__info h1 { font-size: 26px; margin: 0 0 10px; }
.detail__price { font-size: 30px; color: var(--accent); font-weight: 800; margin: 14px 0; }
.detail__price small { font-size: 15px; color: var(--muted); text-decoration: line-through; margin-left: 10px; font-weight: 400; }
.detail__merchant { display: flex; align-items: center; gap: 12px; background: var(--bg); padding: 12px 16px; border-radius: 12px; margin: 16px 0; }
.detail__merchant img { width: 44px; height: 44px; border-radius: 10px; flex: none; }
.detail__merchant svg { width: 14px; height: 14px; vertical-align: -2px; margin-right: 3px; color: var(--muted); }
.detail__desc p { margin: 0 0 10px; color: #36433f; }
.specs { margin: 18px 0; }
.specs table { width: 100%; border-collapse: collapse; }
.specs td { padding: 9px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.specs td:first-child { color: var(--muted); width: 110px; }
.detail__actions { display: flex; gap: 12px; margin-top: 22px; }

/* ---------- Info detail ---------- */
.article { max-width: 820px; margin: 0 auto; padding: 30px 0; }
.article__head { border-bottom: 1px solid var(--border); padding-bottom: 18px; margin-bottom: 18px; }
.article__cat { display: inline-flex; align-items: center; gap: 5px; font-size: 12px; color: var(--primary); background: var(--primary-light); padding: 3px 9px; border-radius: 20px; }
.article h1 { font-size: 26px; margin: 12px 0 8px; }
.article__imgs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 18px 0; }
.article__imgs img { width: 100%; border-radius: 12px; border: 1px solid var(--border); }
.article__body p { margin: 0 0 14px; font-size: 16px; color: #36433f; }
.article__pub { display: flex; align-items: center; gap: 12px; background: var(--bg); padding: 16px; border-radius: 12px; margin-top: 22px; }
.article__head svg, .article__pub svg, .article__phone svg { width: 14px; height: 14px; vertical-align: -2px; margin-right: 3px; color: var(--muted); }
.article__pub .av { width: 46px; height: 46px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; }
.article__phone { margin-top: 12px; background: var(--primary-light); border: 1px dashed var(--primary); border-radius: 12px; padding: 14px 16px; }
.article__phone .num { font-size: 20px; font-weight: 700; color: var(--primary-dark); }
.article__phone .hint { font-size: 13px; color: var(--muted); }

/* ---------- Forms ---------- */
.form-wrap { max-width: 460px; margin: 40px auto; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow); }
.form-wrap h2 { margin: 0 0 6px; font-size: 22px; text-align: center; }
.form-wrap .sub { text-align: center; color: var(--muted); margin: 0 0 22px; font-size: 14px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%; padding: 11px 13px; border: 1px solid var(--border); border-radius: 10px; font-size: 14px; font-family: inherit; background: #fff; color: var(--text);
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.check { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.check input { margin-top: 3px; }
.check a { color: var(--primary); }
.tabs { display: flex; gap: 8px; justify-content: center; margin-bottom: 20px; }
.tabs button { padding: 8px 20px; border: 1px solid var(--border); background: #fff; border-radius: 20px; font-size: 14px; font-weight: 600; color: var(--muted); }
.tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ---------- Cart ---------- */
.cart-item { display: flex; gap: 16px; align-items: center; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 12px; }
.cart-item img { width: 80px; height: 80px; object-fit: cover; border-radius: 10px; }
.cart-item__info { flex: 1; }
.cart-item__title { font-weight: 600; }
.cart-item__price { color: var(--accent); font-weight: 700; }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.qty button { width: 30px; height: 30px; border: none; background: var(--bg); font-size: 16px; }
.qty span { width: 38px; text-align: center; }
.cart-summary { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.cart-summary .total { font-size: 22px; color: var(--accent); font-weight: 800; }
.empty { text-align: center; color: var(--muted); padding: 60px 0; }
.empty svg { width: 64px; height: 64px; color: var(--border); margin-bottom: 12px; }

/* ---------- Merchants ---------- */
.merchant-card { display: flex; gap: 16px; align-items: flex-start; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.merchant-card img { width: 56px; height: 56px; border-radius: 14px; flex: none; }
.merchant-card h3 { margin: 0 0 4px; font-size: 16px; }
.merchant-card .desc { color: var(--muted); font-size: 13px; margin: 6px 0 0; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.merchant-card .contact { font-size: 13px; color: var(--muted); margin-top: 8px; line-height: 1.9; }
.merchant-card .contact svg { width: 14px; height: 14px; vertical-align: -2px; margin: 0 3px 0 12px; }
.merchant-card .contact svg:first-child { margin-left: 0; }

/* ---------- Footer ---------- */
.footer { background: var(--primary-dark); color: #cfe3df; margin-top: 40px; padding: 40px 0 26px; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }
.footer h4 { color: #fff; margin: 0 0 12px; font-size: 15px; }
.footer a { color: #cfe3df; font-size: 14px; display: block; margin-bottom: 8px; }
.footer a:hover { color: #fff; }
.footer__copy { border-top: 1px solid rgba(255,255,255,.12); margin-top: 26px; padding-top: 18px; font-size: 13px; color: #9fc1bb; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.footer__icp a { color: #cfe3df; }

/* ---------- Admin ---------- */
.admin { display: grid; grid-template-columns: 220px 1fr; gap: 0; min-height: 70vh; }
.admin__side { background: var(--primary-dark); color: #cfe3df; padding: 22px 14px; }
.admin__side h3 { color: #fff; font-size: 15px; margin: 0 0 16px; padding-left: 8px; }
.admin__nav a { display: flex; align-items: center; gap: 8px; padding: 11px 14px; border-radius: 10px; color: #cfe3df; font-size: 14px; margin-bottom: 4px; }
.admin__nav a svg { width: 16px; height: 16px; flex: none; }
.admin__nav a:hover, .admin__nav a.active { background: rgba(255,255,255,.12); color: #fff; }
.admin__main { background: #fff; padding: 26px 28px; }
.admin__main h2 { margin: 0 0 18px; font-size: 20px; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 24px; }
.stat { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.stat__num { font-size: 26px; font-weight: 800; color: var(--primary); }
.stat__label { font-size: 13px; color: var(--muted); }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; background: var(--bg); }
.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge--ok { background: #e3f3ec; color: #1c7a52; }
.badge--wait { background: #fdf0e0; color: #b5701a; }
.badge--no { background: #fbe7e3; color: #b23b2e; }
.admin__card { border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-bottom: 14px; }
.table td svg, .admin__main p svg, .admin__card svg { width: 14px; height: 14px; vertical-align: -2px; margin-right: 3px; color: var(--muted); }

/* ---------- Personal center ---------- */
.mine-head { display: flex; align-items: center; gap: 16px; background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; border-radius: var(--radius); padding: 24px 26px; box-shadow: var(--shadow); }
.mine-head h2 { color: #fff; font-size: 21px; }
.mine-head__av { width: 56px; height: 56px; flex: none; border-radius: 50%; background: rgba(255,255,255,.18); border: 1px solid rgba(255,255,255,.32); display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700; }
.mine-head .btn { background: #fff; color: var(--primary-dark); flex: none; }
.mine-head .btn:hover { background: #eef6f4; filter: none; }

.mine-list { display: flex; flex-direction: column; gap: 12px; }
.mine-item { display: flex; align-items: center; gap: 14px; background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; box-shadow: var(--shadow); }
.mine-item__img { width: 74px; height: 74px; flex: none; object-fit: cover; border-radius: 10px; background: var(--bg); }
.mine-item__main { flex: 1; min-width: 0; }
.mine-item__title { font-weight: 600; font-size: 15px; line-height: 1.5; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.mine-item__meta { font-size: 13px; color: var(--muted); margin-top: 6px; }
.mine-item__ops { display: flex; gap: 8px; flex: none; }
.mine-item__ops .btn--ghost { background: #fff; }

/* ---------- Recharge ---------- */
.plan-card { position: relative; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 22px; box-shadow: var(--shadow); display: flex; flex-direction: column; transition: transform .15s, box-shadow .15s; }
.plan-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(15,60,54,.12); }
.plan-card--hot { border-color: var(--primary); box-shadow: 0 10px 26px rgba(15,60,54,.16); }
.plan-card__tag { position: absolute; top: -11px; right: 18px; background: var(--accent); color: #fff; font-size: 12px; font-weight: 600; padding: 3px 11px; border-radius: 20px; }
.plan-card h3 { margin: 0 0 12px; font-size: 18px; }
.plan-card__price { font-size: 30px; font-weight: 800; color: var(--accent); line-height: 1.1; }
.plan-card__price small { font-size: 14px; font-weight: 400; color: var(--muted); margin-left: 4px; }
.plan-card__sub { font-size: 13px; color: var(--muted); margin: 8px 0 16px; }
.plan-card__list { list-style: none; padding: 0; margin: 0 0 20px; flex: 1; }
.plan-card__list li { position: relative; padding-left: 18px; font-size: 13px; color: #36433f; margin-bottom: 9px; }
.plan-card__list li::before { content: ""; position: absolute; left: 0; top: 6px; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.single-box { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; margin-top: 20px; box-shadow: var(--shadow); }

/* ---------- Misc ---------- */
.breadcrumb { font-size: 13px; color: var(--muted); margin: 16px 0; }
.breadcrumb a { color: var(--primary); }
.notice { background: var(--primary-light); border: 1px solid #cfe3df; color: var(--primary-dark); padding: 12px 16px; border-radius: 10px; font-size: 14px; margin: 16px 0; }
.steps { display: flex; gap: 0; margin: 30px 0; flex-wrap: wrap; }
.step { flex: 1; min-width: 160px; text-align: center; position: relative; }
.step__num { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; margin: 0 auto 10px; }
.step__t { font-weight: 600; }
.step__d { font-size: 13px; color: var(--muted); }
.step:not(:last-child)::after { content: ""; position: absolute; top: 20px; left: 60%; right: -40%; height: 2px; background: var(--border); }

.toast { position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%); background: #1f2a28; color: #fff; padding: 12px 22px; border-radius: 10px; font-size: 14px; z-index: 200; opacity: 0; transition: opacity .25s; pointer-events: none; }
.toast.show { opacity: 1; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: 1fr; }
  .modules { grid-template-columns: 1fr; }
  .detail { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .admin { grid-template-columns: 1fr; }
  .admin__side { display: flex; gap: 8px; overflow-x: auto; }
  .admin__nav { display: flex; gap: 6px; }
  .admin__nav a { margin: 0; white-space: nowrap; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .mine-item { flex-wrap: wrap; }
  .mine-item__main { flex: 1 1 60%; }
  .single-box { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 640px) {
  .nav { display: none; }
  .hero h1 { font-size: 26px; }
  .brand__name { font-size: 14px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .mine-head { flex-wrap: wrap; padding: 20px; }
  .mine-item__ops { width: 100%; }
  .single-box > div:last-child { flex-wrap: wrap; }
}