/* ===== 国珍松花粉商城 - 全局样式（健康绿 + 金色点缀） ===== */
:root {
  --green-900: #1c3d2a;
  --green-700: #2e6b45;
  --green-600: #3c8a57;
  --green-500: #4da36b;
  --green-100: #e8f3ec;
  --green-50: #f4faf6;
  --gold: #c9a24b;
  --gold-light: #f3e6c8;
  --ink: #243b2c;
  --gray: #6b7a70;
  --bg: #ffffff;
  --line: #e3ece6;
  --shadow: 0 8px 30px rgba(28, 61, 42, .10);
  --radius: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--green-600); text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }

.container { max-width: 1160px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶部导航 ===== */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; gap: 24px;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 19px; color: var(--green-900); white-space: nowrap; }
.brand .logo {
  width: 36px; height: 36px; border-radius: 10px;
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 20px;
}
.nav-links { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--ink); font-size: 15px; padding: 6px 2px; border-bottom: 2px solid transparent; transition: .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--green-600); border-bottom-color: var(--green-500); }
.lang-switch { display: flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.lang-switch button { background: none; border: none; padding: 5px 12px; font-size: 13px; color: var(--gray); }
.lang-switch button.on { background: var(--green-600); color: #fff; }
.icon-btn { position: relative; background: none; border: 1px solid var(--line); border-radius: 999px; width: 40px; height: 40px; font-size: 17px; display: flex; align-items: center; justify-content: center; color: var(--green-700); }
.cart-badge {
  position: absolute; top: -5px; right: -5px; min-width: 18px; height: 18px; padding: 0 4px;
  background: #e2534b; color: #fff; font-size: 11px; border-radius: 999px;
  display: none; align-items: center; justify-content: center;
}
.cart-badge.show { display: flex; }
.admin-link { font-size: 13px; color: var(--gray); border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; }
.admin-link:hover { color: var(--green-600); border-color: var(--green-500); }

/* ===== Hero ===== */
.hero {
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(201, 162, 75, .18), transparent 60%),
    linear-gradient(160deg, #f2f9f3 0%, #e6f3e9 55%, #dbeedf 100%);
  padding: 64px 0 70px;
  overflow: hidden;
}
.hero .container { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--green-100);
  color: var(--green-700); font-size: 13px; font-weight: 600;
  padding: 6px 14px; border-radius: 999px; margin-bottom: 18px;
  box-shadow: var(--shadow);
}
.hero h1 { font-size: 44px; line-height: 1.2; color: var(--green-900); margin-bottom: 14px; letter-spacing: 1px; }
.hero h1 em { font-style: normal; color: var(--green-600); }
.hero .sub { font-size: 18px; color: var(--green-700); margin-bottom: 20px; }
.hero .spec-line { color: var(--gray); font-size: 14px; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: 999px; padding: 13px 30px; font-size: 15px; font-weight: 600;
  transition: .2s;
}
.btn-primary { background: linear-gradient(135deg, var(--green-600), var(--green-700)); color: #fff; box-shadow: 0 6px 18px rgba(60, 138, 87, .35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(60, 138, 87, .45); }
.btn-gold { background: linear-gradient(135deg, #d9b462, var(--gold)); color: #3d2f0a; box-shadow: 0 6px 18px rgba(201, 162, 75, .4); }
.btn-gold:hover { transform: translateY(-2px); }
.btn-ghost { background: #fff; color: var(--green-700); border: 1px solid var(--green-100); }
.btn-ghost:hover { border-color: var(--green-500); }
.hero-trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.trust-item { background: rgba(255,255,255,.85); border: 1px solid var(--green-100); border-radius: 12px; padding: 12px 10px; text-align: center; }
.trust-item .t-icon { font-size: 22px; margin-bottom: 4px; }
.trust-item .t-text { font-size: 13px; color: var(--green-700); font-weight: 600; }
.hero-visual { position: relative; }
.hero-img-wrap {
  border-radius: 24px; overflow: hidden; box-shadow: var(--shadow);
  border: 6px solid #fff; background: #fff;
}
.hero-img-wrap img { width: 100%; height: 460px; object-fit: cover; }
.float-card {
  position: absolute; background: #fff; border-radius: 14px; box-shadow: var(--shadow);
  padding: 12px 16px; font-size: 13px; color: var(--ink); border: 1px solid var(--green-100);
}
.float-card b { display: block; color: var(--green-700); font-size: 15px; }
.fc-1 { top: 24px; left: -18px; }
.fc-2 { bottom: 30px; right: -14px; }

/* ===== 通用区块 ===== */
.section { padding: 70px 0; }
.section-alt { background: var(--green-50); }
.sec-head { text-align: center; margin-bottom: 44px; }
.sec-head .kicker { color: var(--green-500); font-size: 13px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; }
.sec-head h2 { font-size: 32px; color: var(--green-900); margin: 8px 0 8px; }
.sec-head p { color: var(--gray); }

/* 产品主区块 */
.product-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.product-gallery { position: sticky; top: 88px; }
.gallery-main { border-radius: 20px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); }
.gallery-main img { width: 100%; height: 420px; object-fit: cover; }
.gallery-sub { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.gallery-sub img { width: 100%; height: 130px; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); cursor: pointer; transition: .2s; }
.gallery-sub img:hover { border-color: var(--green-500); }
.product-info h3 { font-size: 27px; color: var(--green-900); margin-bottom: 6px; }
.product-info .p-sub { color: var(--green-600); font-size: 15px; margin-bottom: 14px; }
.price-row { display: flex; align-items: baseline; gap: 12px; margin: 16px 0 20px; }
.price-row .price { font-size: 32px; font-weight: 800; color: var(--green-700); }
.price-row .price small { font-size: 16px; }
.price-row .reg-price { color: var(--gray); text-decoration: line-through; font-size: 15px; }
.qty-row { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.qty-row label { color: var(--gray); font-size: 14px; }
.qty-ctl { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.qty-ctl button { width: 38px; height: 38px; background: none; border: none; font-size: 18px; color: var(--green-700); }
.qty-ctl button:hover { background: var(--green-50); }
.qty-ctl span { min-width: 40px; text-align: center; font-weight: 700; }
.p-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.p-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.tag { background: var(--green-50); border: 1px solid var(--green-100); color: var(--green-700); font-size: 12px; padding: 4px 12px; border-radius: 999px; }

/* 功效 / 特点卡片 */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; text-align: center; transition: .25s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--green-100); }
.feature-card .f-icon { font-size: 34px; margin-bottom: 12px; }
.feature-card h4 { color: var(--green-900); font-size: 16px; margin-bottom: 6px; }
.feature-card p { color: var(--gray); font-size: 13.5px; }

/* 规格表格 */
.spec-table { max-width: 760px; margin: 0 auto; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-row { display: grid; grid-template-columns: 220px 1fr; }
.spec-row:nth-child(odd) { background: var(--green-50); }
.spec-row dt { padding: 14px 22px; font-weight: 600; color: var(--green-700); border-right: 1px solid var(--line); }
.spec-row dd { padding: 14px 22px; color: var(--ink); }

/* 资质信息 */
.about-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.about-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.about-card .a-label { color: var(--green-500); font-size: 13px; font-weight: 700; letter-spacing: 1px; margin-bottom: 6px; }
.about-card .a-value { color: var(--ink); font-size: 15px; }
.about-card .a-value a { color: var(--green-600); }
.disclaimer {
  margin-top: 30px; background: var(--gold-light); border: 1px solid rgba(201,162,75,.35);
  border-radius: var(--radius); padding: 16px 20px; color: #6b5416; font-size: 13px;
}

/* ===== 购物车 / 结算 / 查询 ===== */
.view { display: none; }
.view.active { display: block; animation: fadeIn .3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.page-head { padding: 40px 0 10px; }
.page-head h2 { font-size: 28px; color: var(--green-900); }

.cart-layout, .checkout-layout { display: grid; grid-template-columns: 1.5fr 1fr; gap: 30px; align-items: start; padding-bottom: 70px; }
.cart-item {
  display: grid; grid-template-columns: 86px 1fr auto auto auto; gap: 18px; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; margin-bottom: 12px;
}
.cart-item img { width: 86px; height: 86px; object-fit: cover; border-radius: 10px; }
.cart-item .ci-name { font-weight: 600; color: var(--ink); }
.cart-item .ci-spec { font-size: 12.5px; color: var(--gray); margin-top: 4px; }
.cart-item .ci-price { color: var(--green-700); font-weight: 700; }
.cart-item .ci-remove { background: none; border: none; color: var(--gray); font-size: 13px; text-decoration: underline; }
.cart-item .ci-remove:hover { color: #e2534b; }
.cart-empty { text-align: center; padding: 70px 0; color: var(--gray); }
.cart-empty .big { font-size: 52px; margin-bottom: 12px; }

.summary-card { background: var(--green-50); border: 1px solid var(--green-100); border-radius: var(--radius); padding: 24px; position: sticky; top: 88px; }
.summary-card h3 { color: var(--green-900); font-size: 18px; margin-bottom: 16px; }
.sum-row { display: flex; justify-content: space-between; font-size: 14.5px; color: var(--gray); padding: 7px 0; }
.sum-row.total { font-size: 17px; color: var(--ink); font-weight: 700; border-top: 1px dashed var(--line); margin-top: 8px; padding-top: 14px; }
.sum-row.total span:last-child { color: var(--green-700); font-size: 22px; }
.sum-note { font-size: 12px; color: var(--gray); margin-top: 8px; }
.summary-card .btn { width: 100%; margin-top: 16px; }

/* 结算表单 */
.checkout-form { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.checkout-form h3 { color: var(--green-900); margin-bottom: 14px; font-size: 17px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; color: var(--gray); margin-bottom: 5px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 14px; border: 1px solid var(--line); border-radius: 10px;
  font-size: 14px; font-family: inherit; color: var(--ink); background: #fff; outline: none; transition: .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--green-500); box-shadow: 0 0 0 3px rgba(77,163,107,.15); }
.field textarea { resize: vertical; min-height: 70px; }
.pay-options { display: grid; gap: 10px; margin: 10px 0 18px; }
.pay-option {
  display: flex; align-items: center; gap: 12px; border: 1.5px solid var(--line);
  border-radius: 12px; padding: 14px 16px; cursor: pointer; transition: .2s;
}
.pay-option:hover { border-color: var(--green-100); }
.pay-option.on { border-color: var(--green-500); background: var(--green-50); }
.pay-option input { accent-color: var(--green-600); }
.pay-option .pay-name { font-weight: 600; font-size: 14.5px; }
.pay-option .pay-desc { font-size: 12.5px; color: var(--gray); }

/* 订单查询 */
.track-box { max-width: 560px; margin: 0 auto; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 32px; }
.track-box .field { margin-bottom: 14px; }
.track-result { margin-top: 26px; border-top: 1px dashed var(--line); padding-top: 22px; }
.track-result .st-line { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.badge { display: inline-flex; align-items: center; padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.badge.pending { background: #fdf1dc; color: #9a6b00; }
.badge.paid, .badge.completed { background: #e3f4e9; color: #1f7a43; }
.badge.shipped { background: #e3eefb; color: #2b6cb0; }
.badge.cancelled { background: #fbeaea; color: #b02b2b; }
.badge.unpaid { background: #fdf1dc; color: #9a6b00; }
.track-items { margin: 12px 0; }
.track-item { display: flex; gap: 12px; align-items: center; padding: 8px 0; border-bottom: 1px dashed var(--line); }
.track-item img { width: 48px; height: 48px; object-fit: cover; border-radius: 8px; }

/* ===== 客服 ===== */
.chat-fab {
  position: fixed; right: 24px; bottom: 24px; z-index: 200;
  width: 58px; height: 58px; border-radius: 50%;
  background: linear-gradient(135deg, var(--green-500), var(--green-700));
  color: #fff; font-size: 26px; border: none;
  box-shadow: 0 10px 26px rgba(60, 138, 87, .45);
  display: flex; align-items: center; justify-content: center; transition: .2s;
}
.chat-fab:hover { transform: scale(1.06); }
.chat-fab .dot { position: absolute; top: 0; right: 0; width: 14px; height: 14px; background: #e2534b; border: 2px solid #fff; border-radius: 50%; display: none; }
.chat-window {
  position: fixed; right: 24px; bottom: 94px; z-index: 200;
  width: 360px; max-width: calc(100vw - 32px); height: 480px; max-height: calc(100vh - 130px);
  background: #fff; border-radius: 18px; box-shadow: 0 20px 60px rgba(28,61,42,.25);
  display: none; flex-direction: column; overflow: hidden; border: 1px solid var(--line);
}
.chat-window.open { display: flex; animation: fadeIn .25s ease; }
.chat-head { background: linear-gradient(135deg, var(--green-600), var(--green-800, #24593a)); color: #fff; padding: 14px 18px; display: flex; align-items: center; gap: 10px; }
.chat-head .avatar { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,.2); display: flex; align-items: center; justify-content: center; font-size: 17px; }
.chat-head b { font-size: 15px; }
.pay-bank-info { margin-top: 8px; background: var(--green-50); border: 1px solid var(--green-100); border-radius: 10px; padding: 10px 12px; display: grid; gap: 5px; }
.pbi-row { display: flex; justify-content: space-between; gap: 12px; font-size: 12.5px; }
.pbi-row span { color: var(--gray); white-space: nowrap; }
.pbi-row b { color: var(--green-900); text-align: right; word-break: break-word; }
.receipt-upload { margin-top: 12px; background: #fffdf5; border: 1.5px dashed #d8b45a; border-radius: 12px; padding: 16px; }
.rcpt-title { font-weight: 700; color: var(--green-900); margin-bottom: 6px; }
.rcpt-sub { font-size: 12.5px; color: var(--gray); margin-bottom: 12px; }
.rcpt-btn { display: inline-flex; align-items: center; gap: 8px; background: var(--green-600); color: #fff; font-size: 13px; padding: 9px 16px; border-radius: 8px; cursor: pointer; }
.rcpt-btn input { display: none; }
.rcpt-status { font-size: 13px; margin-top: 10px; color: var(--green-700); }
.rcpt-preview img { max-width: 220px; max-height: 220px; border-radius: 10px; border: 1px solid var(--line); margin-top: 10px; display: block; }
.rcpt-again { margin-top: 10px; font-size: 12.5px; background: none; border: 1px solid var(--green-200); color: var(--green-700); padding: 6px 12px; border-radius: 6px; cursor: pointer; }
.chat-status-badge { font-size: 11px; padding: 3px 8px; border-radius: 20px; background: rgba(255,255,255,.18); }
.chat-status-badge.on { color: #d9f2e3; }
.chat-status-badge.off { color: #ffd9d9; }
.chat-head .close { margin-left: auto; background: none; border: none; color: #fff; font-size: 18px; }
.chat-body { flex: 1; overflow-y: auto; padding: 16px; background: var(--green-50); display: flex; flex-direction: column; gap: 10px; }
.msg { max-width: 78%; padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.5; word-break: break-word; }
.msg.customer { align-self: flex-end; background: var(--green-600); color: #fff; border-bottom-right-radius: 4px; }
.msg.admin { align-self: flex-start; background: #fff; border: 1px solid var(--line); border-bottom-left-radius: 4px; }
.msg.sys { align-self: center; background: none; color: var(--gray); font-size: 12px; }
.msg .m-time { display: block; font-size: 11px; opacity: .7; margin-top: 4px; }
.chat-input { display: flex; gap: 10px; padding: 12px; border-top: 1px solid var(--line); }
.chat-input input { flex: 1; border: 1px solid var(--line); border-radius: 999px; padding: 10px 16px; font-size: 14px; outline: none; }
.chat-input input:focus { border-color: var(--green-500); }
.chat-input button { background: var(--green-600); color: #fff; border: none; border-radius: 999px; padding: 0 20px; font-size: 14px; }

/* ===== Toast ===== */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #fff; padding: 12px 26px; border-radius: 999px;
  font-size: 14px; opacity: 0; pointer-events: none; transition: .3s; z-index: 300;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===== 页脚 ===== */
.footer { background: var(--green-900); color: rgba(255,255,255,.85); padding: 50px 0 30px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 34px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer p, .footer li { font-size: 13.5px; line-height: 2; }
.footer ul { list-style: none; }
.footer a { color: rgba(255,255,255,.8); }
.footer a:hover { color: var(--gold); }
.footer .copy { text-align: center; margin-top: 34px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12.5px; color: rgba(255,255,255,.55); }

/* ===== 响应式 ===== */
@media (max-width: 920px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero h1 { font-size: 34px; }
  .hero-img-wrap img { height: 340px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-gallery { position: static; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .cart-layout, .checkout-layout { grid-template-columns: 1fr; }
  .summary-card { position: static; }
  .cart-item { grid-template-columns: 72px 1fr auto; }
  .cart-item .ci-spec { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 12px; }
  .nav-links a { font-size: 13.5px; }
}
@media (max-width: 560px) {
  .nav { flex-wrap: wrap; height: auto; padding: 10px 0; gap: 10px; }
  .nav-links { margin-left: 0; flex-wrap: wrap; }
  .hero { padding: 40px 0 46px; }
  .hero h1 { font-size: 28px; }
  .hero-trust { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .spec-row { grid-template-columns: 1fr; }
  .spec-row dt { border-right: none; border-bottom: 1px solid var(--line); padding: 10px 16px; }
  .spec-row dd { padding: 10px 16px; }
}