:root {
    --primary: #1f7a4d;
    --primary-dark: #155c39;
    --primary-light: #e8f5ee;
    --accent: #2e9e5b;
    --secondary: #64748b;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #b45309;
    --bg: #f6f8f6;
    --card-bg: #ffffff;
    --text: #16201b;
    --text-light: #5b6b63;
    --border: #e4ece7;
    --shadow: 0 2px 8px rgba(20, 60, 40, 0.06), 0 1px 3px rgba(20, 60, 40, 0.05);
    --shadow-lg: 0 18px 40px -12px rgba(20, 60, 40, 0.18);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 商标右上角注册标记 */
.trademark-reg {
    font-size: 0.55em;
    vertical-align: super;
    color: var(--accent);
    font-weight: 400;
    margin-left: 2px;
}

/* 导航 */
.navbar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo-img {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.logo-img img {
    height: 38px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-sm { padding: 7px 14px; font-size: 14px; }
.btn-lg { padding: 14px 34px; font-size: 16px; }

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-lg); }

.btn-secondary { background: var(--secondary); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-block { width: 100%; }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--primary);
    color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }

main { flex: 1; }

/* ===== Hero ===== */
.hero {
    padding: 80px 0 90px;
    background:
        radial-gradient(1100px 460px at 85% -10%, rgba(46, 158, 91, 0.12), transparent),
        radial-gradient(800px 400px at 0% 0%, rgba(31, 122, 77, 0.10), transparent),
        linear-gradient(180deg, #f3faf6 0%, #ffffff 100%);
    overflow: hidden;
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 22px;
}

.hero h1 {
    font-size: 56px;
    line-height: 1.08;
    letter-spacing: -0.5px;
    margin-bottom: 22px;
    color: #11231a;
}

.hero-sub {
    font-size: 18px;
    color: var(--text-light);
    max-width: 560px;
    margin-bottom: 34px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
    display: flex;
    gap: 36px;
    margin-top: 48px;
    flex-wrap: wrap;
}
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 26px; color: var(--primary); font-weight: 700; }
.hero-stats span { font-size: 13px; color: var(--text-light); }

.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 360px;
}
.hero-logo {
    width: 78%;
    max-width: 460px;
    height: auto;
    display: block;
    margin: 24px auto 0;
    filter: drop-shadow(0 24px 48px rgba(31, 122, 77, 0.22));
}

.hero-badge {
    position: absolute;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px 18px;
    font-size: 15px;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    animation: floaty 5s ease-in-out infinite;
}
.hb-1 { top: 8%; left: 2%; color: #0E8C6B; }
.hb-2 { top: 42%; right: -15%; color: #7B61FF; animation-delay: 1.2s; }
.hb-3 { bottom: 6%; left: 14%; color: #F25022; animation-delay: 2.4s; }

@keyframes floaty {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* ===== 通用 section ===== */
.section { padding: 84px 0; }
.section-head { text-align: center; margin-bottom: 56px; }
.section-title { font-size: 36px; letter-spacing: -0.5px; margin-bottom: 12px; color: #11231a; }
.section-subtitle { color: var(--text-light); font-size: 17px; }

/* ===== 产品总览网格 ===== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
    gap: 26px;
}

.product-card {
    --pc: var(--primary);
    background: var(--card-bg);
    border-radius: 18px;
    padding: 30px 28px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
    position: relative;
    overflow: hidden;
}
.product-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--pc);
    opacity: 0.9;
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--pc);
}

.product-icon {
    width: 58px; height: 58px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    margin-bottom: 18px;
}

.product-card h3 { font-size: 21px; margin-bottom: 10px; }
.product-card .platform {
    display: inline-block;
    background: #f1f5f3;
    color: var(--text-light);
    padding: 3px 12px;
    border-radius: 20px;
    font-size: 12px;
    margin-bottom: 14px;
}
.product-card .desc { color: var(--text-light); font-size: 14.5px; margin-bottom: 18px; min-height: 46px; }

.pc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.pc-tags span {
    font-size: 12px;
    background: var(--primary-light);
    color: var(--primary-dark);
    padding: 4px 10px;
    border-radius: 8px;
}

.product-card .actions { display: flex; gap: 8px; flex-wrap: wrap; }
.product-card .actions .btn { flex: 1; min-width: 72px; padding: 8px 10px; font-size: 14px; }

/* ===== 产品深度区块 ===== */
.product-block { padding: 64px 0; border-bottom: 1px solid var(--border); }
.product-block:nth-child(even) { background: #fbfdfc; }

.pb-grid {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 56px;
    align-items: start;
}
.pb-grid.reverse .pb-visual { order: 2; }

.pb-visual {
    --pc: var(--primary);
    background: linear-gradient(160deg, var(--pc), color-mix(in srgb, var(--pc) 70%, #000 30%));
    border-radius: 22px;
    padding: 40px 32px;
    color: #fff;
    text-align: center;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 96px;
}
.pb-icon {
    width: 92px; height: 92px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.16);
    display: flex; align-items: center; justify-content: center;
    font-size: 46px;
    margin: 0 auto 22px;
}
.pb-platform {
    display: inline-block;
    background: rgba(255, 255, 255, 0.18);
    padding: 5px 16px;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 18px;
}
.pb-tagline { font-size: 17px; font-weight: 600; line-height: 1.5; }

.pb-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
}
.pb-name { font-size: 32px; margin-bottom: 12px; color: #11231a; letter-spacing: -0.3px; }
.pb-slogan { font-size: 17px; color: var(--primary); font-weight: 600; margin-bottom: 18px; }
.pb-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.pb-tags span {
    font-size: 12.5px;
    background: #eef3f0;
    color: var(--text-light);
    padding: 5px 12px;
    border-radius: 8px;
}
.pb-overview { color: var(--text-light); margin-bottom: 28px; font-size: 15.5px; }

.pb-section-title {
    font-size: 20px;
    font-weight: 700;
    margin: 30px 0 18px;
    padding-left: 14px;
    border-left: 4px solid var(--primary);
    color: #11231a;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 26px;
}
.feature-grid.wide { grid-template-columns: 1fr 1fr; }

.feature-item { display: flex; gap: 12px; align-items: flex-start; }
.feature-ic {
    flex-shrink: 0;
    width: 24px; height: 24px;
    border-radius: 7px;
    display: flex; align-items: center; justify-content: center;
    font-size: 13px; font-weight: 700;
    margin-top: 2px;
}
.feature-t { font-weight: 600; font-size: 15px; color: #1c2a22; }
.feature-d { font-size: 13.5px; color: var(--text-light); }

.highlight-list {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 26px;
}
.highlight-list li {
    position: relative;
    padding-left: 26px;
    font-size: 14.5px;
    color: #2a3a31;
}
.highlight-list li::before {
    content: "★";
    position: absolute; left: 0; top: 0;
    color: var(--accent);
    font-size: 14px;
}

.pb-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 26px; }
.pb-col h4 { font-size: 16px; margin-bottom: 12px; color: var(--primary-dark); }
.pb-col ul { list-style: none; }
.pb-col li {
    font-size: 14px; color: var(--text-light);
    padding: 7px 0 7px 18px;
    border-bottom: 1px dashed var(--border);
    position: relative;
}
.pb-col li::before {
    content: "•"; position: absolute; left: 0; color: var(--accent); font-weight: 700;
}

.pb-version {
    margin-top: 26px;
    background: var(--primary-light);
    border-radius: 12px;
    padding: 16px 18px;
    font-size: 14px;
    color: #244a36;
    line-height: 1.6;
}

.pb-actions { display: flex; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

/* ===== 对比表 ===== */
.compare-section { background: #fbfdfc; }
.cmp-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 26px;
    margin-bottom: 26px;
}
.cmp-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 26px 26px 8px;
    box-shadow: var(--shadow);
}
.cmp-card h3 { font-size: 19px; margin-bottom: 14px; color: #11231a; }
.cmp-card.cmp-zuowen { grid-column: 1 / -1; }
.cmp-table { width: 100%; border-collapse: collapse; }
.cmp-table th, .cmp-table td {
    padding: 13px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    vertical-align: top;
}
.cmp-table th { background: #f4f8f6; color: var(--text-light); font-weight: 600; }
.cmp-table td:nth-child(2), .cmp-table td:nth-child(3) { color: #2a3a31; }
.cmp-dim { font-weight: 600; color: var(--text) !important; white-space: nowrap; }

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #fff;
    padding: 80px 0;
}
.cta-inner { text-align: center; }
.cta-inner h2 { font-size: 34px; margin-bottom: 14px; }
.cta-inner > p { font-size: 17px; opacity: 0.92; max-width: 640px; margin: 0 auto 44px; }
.cta-steps { display: flex; justify-content: center; gap: 28px; flex-wrap: wrap; margin-bottom: 40px; }
.cta-step {
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    padding: 26px 24px;
    width: 240px;
}
.cta-num {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: #fff; color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 18px;
    margin: 0 auto 14px;
}
.cta-step h4 { font-size: 18px; margin-bottom: 8px; }
.cta-step p { font-size: 14px; opacity: 0.9; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-section .btn-outline { border-color: #fff; color: #fff; }
.cta-section .btn-outline:hover { background: #fff; color: var(--primary); }

/* ===== 产品详情页 ===== */
.product-detail { padding: 40px 0 84px; }
.back-link { display: inline-block; color: var(--primary); text-decoration: none; margin-bottom: 24px; font-weight: 600; }
.back-link:hover { text-decoration: underline; }

.pd-head {
    --pc: var(--primary);
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 24px;
    align-items: center;
    background: #fff;
    border: 1px solid var(--border);
    border-left: 6px solid var(--pc);
    border-radius: 16px;
    padding: 28px 32px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}
.pd-icon {
    width: 72px; height: 72px;
    border-radius: 18px;
    display: flex; align-items: center; justify-content: center;
    font-size: 36px;
}
.pd-head h1 { font-size: 30px; margin: 6px 0; }
.pd-price { text-align: right; }
.pd-price .price-big { font-size: 34px; font-weight: 800; margin-bottom: 12px; }
.pd-price .btn { margin: 4px; }

.pd-license {
    margin-top: 36px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 32px;
    box-shadow: var(--shadow);
}
.pd-license h3 { font-size: 19px; margin: 18px 0 8px; color: var(--primary-dark); }
.pd-license h3:first-child { margin-top: 0; }
.pd-license p { color: var(--text-light); font-size: 15px; }

/* ===== 用户中心 ===== */
.user-center { padding: 40px 0; background: #f6f8fb; min-height: calc(100vh - 64px); }
.user-header {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 20px;
}
.user-avatar {
    width: 72px; height: 72px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--primary-light);
    border: 2px solid var(--border);
    flex-shrink: 0;
}
.user-avatar img { width: 100%; height: 100%; object-fit: cover; }
.user-header h2 { font-size: 24px; margin-bottom: 6px; }
.user-header p { color: var(--text-light); }

.user-layout { display: grid; grid-template-columns: 260px 1fr; gap: 24px; align-items: start; }
.user-sidebar {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 88px;
}
.user-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 14px;
}
.user-card .user-avatar { width: 56px; height: 56px; }
.user-card .user-meta h2 { font-size: 18px; margin-bottom: 2px; }
.user-card .user-meta p { color: var(--text-light); font-size: 13px; }
.user-nav { display: flex; flex-direction: column; gap: 4px; }
.user-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-radius: 10px;
    color: var(--text);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 15px;
}
.user-nav a:hover { background: #f1f5f9; }
.user-nav a.active { background: var(--primary); color: #fff; }
.user-nav a .ic { font-size: 16px; }
.user-content { min-width: 0; }

.user-panel {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

/* 账号设置 */
.settings-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 24px; }
.settings-card {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    background: #fafcfa;
}
.settings-card h3 {
    font-size: 18px; margin-bottom: 20px; color: var(--primary);
    border-bottom: 1px solid var(--border); padding-bottom: 10px;
}
.settings-form .form-row { margin-bottom: 16px; }
.settings-form label { display: block; font-size: 14px; color: var(--text-light); margin-bottom: 6px; }
.settings-form input {
    width: 100%; padding: 10px 12px;
    border: 1px solid var(--border); border-radius: 8px; font-size: 15px;
}
.settings-form input:focus { outline: none; border-color: var(--accent); }
.info-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 15px;
}
.info-row:last-child { border-bottom: none; }
.info-row span { color: var(--text-light); }

/* 表格 */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 14px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { color: var(--text-light); font-weight: 500; background: #f8fafc; }
.data-table tr:hover td { background: #f8fafc; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; }
.badge-success { background: #dcfce7; color: var(--success); }
.badge-warning { background: #fef3c7; color: var(--warning); }
.badge-danger { background: #fee2e2; color: var(--danger); }

/* 弹窗 */
.modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(10, 30, 20, 0.5);
    display: flex; align-items: center; justify-content: center;
    z-index: 1000;
}
.modal-content {
    background: var(--card-bg);
    border-radius: 18px;
    padding: 34px;
    width: 440px;
    max-width: 92%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
}
.modal-close {
    position: absolute; top: 16px; right: 20px;
    font-size: 28px; cursor: pointer; color: var(--text-light);
}
.modal-close:hover { color: var(--text); }

.auth-tabs { display: flex; margin-bottom: 24px; border-bottom: 1px solid var(--border); }
.auth-tab {
    flex: 1; padding: 12px; border: none; background: transparent;
    cursor: pointer; font-size: 16px; color: var(--text-light);
    border-bottom: 2px solid transparent;
}
.auth-tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.auth-subtabs { display: flex; gap: 8px; margin-bottom: 16px; }
.auth-subtab {
    flex: 1; padding: 8px; border: 1px solid var(--border); background: transparent;
    border-radius: 8px; cursor: pointer; font-size: 14px; color: var(--text-light);
    transition: all 0.2s;
}
.auth-subtab.active { background: var(--primary-light); color: var(--primary); border-color: var(--primary); }

.code-row { display: flex; gap: 8px; align-items: stretch; }
.code-row input { flex: 1; margin-bottom: 12px; }
.code-row .btn { margin-bottom: 12px; white-space: nowrap; }

.auth-form h3 { margin-bottom: 20px; text-align: center; }
.form-tip { text-align: center; color: var(--text-light); font-size: 13px; margin-bottom: 16px; }
.form-options { display: flex; justify-content: flex-end; margin-bottom: 12px; font-size: 14px; }
.form-options a { color: var(--accent); text-decoration: none; }
.form-options a:hover { text-decoration: underline; }

.auth-form input {
    width: 100%; padding: 12px; margin-bottom: 12px;
    border: 1px solid var(--border); border-radius: 8px; font-size: 15px;
}
.auth-form input:focus { outline: none; border-color: var(--accent); }

.form-msg { margin-top: 12px; text-align: center; font-size: 14px; min-height: 20px; }
.form-msg.success { color: var(--success); }
.form-msg.error { color: var(--danger); }

/* 提示信息 */
.alert { padding: 16px 20px; border-radius: 8px; margin-bottom: 20px; }
.alert-info { background: var(--primary-light); color: var(--primary-dark); }

.empty-state { text-align: center; padding: 48px; color: var(--text-light); }

/* 会员套餐选择 */
.package-list {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.pkg-card {
  flex: 1;
  min-width: 140px;
  padding: 16px;
  border: 2px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
  background: var(--card-bg);
}
.pkg-card:hover {
  border-color: var(--accent);
}
.pkg-card.active {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 0 0 2px var(--primary-light);
}
.pkg-name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.pkg-rec {
  display: inline-block;
  margin-left: 4px;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--primary);
  color: #fff;
}
.pkg-price {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}
.pkg-unit {
  font-size: 13px;
  color: var(--text-light);
}
.order-info {
  margin: 20px 0;
  padding: 16px;
  background: #f8fafc;
  border-radius: 8px;
}
.order-info p {
  margin: 6px 0;
}
.order-summary {
  margin: 20px 0;
  padding: 16px;
  background: #f8fafc;
  border-radius: 8px;
}
.order-summary p {
  margin: 8px 0;
}
@media (max-width: 640px) {
  .package-list { flex-direction: column; }
  .pkg-card { min-width: auto; width: 100%; }
}

/* 页脚 */
.footer {
    background: #0f2419;
    padding: 48px 0 34px;
    text-align: center;
    color: #b9c9bf;
    font-size: 14px;
}
.footer-brand {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 16px; margin-bottom: 18px; text-align: left;
}
.footer-logo { height: 56px; width: auto; }
.footer-name { font-size: 20px; font-weight: 700; color: #fff; margin: 0; }
.footer-slogan { font-size: 13px; color: #9fb3a7; margin: 4px 0 0; }
.footer-products { margin: 14px 0; }
.footer-products a {
    color: #FF7A00;
    text-decoration: none;
    transition: color 0.2s, border-color 0.2s;
    border-bottom: 1px dashed transparent;
}
.footer-products a:hover {
    color: #FF4D8D;
    border-bottom-color: #FF4D8D;
}
.footer-copyright { font-size: 13px; }
.footer-copyright a { color: #cfe0d7; text-decoration: none; transition: color 0.2s; }
.footer-copyright a:hover { color: #FFB066; }

/* 加载动画 */
.loading {
    display: inline-block; width: 20px; height: 20px;
    border: 2px solid var(--border); border-top-color: var(--primary);
    border-radius: 50%; animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.license-key {
    font-family: monospace; background: #f1f5f3; padding: 4px 8px;
    border-radius: 4px; font-size: 14px; letter-spacing: 1px;
}

/* Toast */
.toast {
    position: fixed; top: 90px; left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: var(--primary); color: #fff;
    padding: 12px 24px; border-radius: 10px;
    box-shadow: var(--shadow-lg); opacity: 0;
    transition: all 0.3s; z-index: 2000; pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* 响应式 */
@media (max-width: 960px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-visual { min-height: 280px; order: -1; }
    .pb-grid { grid-template-columns: 1fr; gap: 32px; }
    .pb-grid.reverse .pb-visual { order: 0; }
    .pb-visual { position: static; }
    .cmp-grid { grid-template-columns: 1fr; }
    .pd-head { grid-template-columns: 1fr; text-align: center; }
    .pd-price { text-align: center; }
    .feature-grid, .highlight-list, .pb-cols { grid-template-columns: 1fr; }
    .hero h1 { font-size: 40px; }
    .nav-links a:not(.btn) { display: none; }
}

/* 首页顶部 Banner */
.page-banner { width: 100%; line-height: 0; background: #0a1a3a; }
.page-banner img { width: 100%; height: auto; display: block; max-height: 440px; object-fit: cover; }

/* 产品页品牌代言（大幅扩图 + 左文右图） */
.product-hero {
    padding: 56px 0 24px;
    background: linear-gradient(135deg, #fff5ec 0%, #fff 50%, #f0f6ff 100%);
    position: relative;
    overflow: hidden;
}
.product-hero::before {
    content: "";
    position: absolute; top: -100px; right: -100px;
    width: 360px; height: 360px;
    background: radial-gradient(circle, rgba(255,122,0,0.18), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.product-hero::after {
    content: "";
    position: absolute; bottom: -80px; left: -80px;
    width: 280px; height: 280px;
    background: radial-gradient(circle, rgba(60,140,255,0.15), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.product-hero-inner {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 56px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.product-hero-text { padding: 24px 0; order: 2; }
.product-hero-img { order: 1; }
.hero-eyebrow {
    display: inline-block;
    background: linear-gradient(90deg, #FF7A00, #FF4D8D);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    letter-spacing: 1px;
    margin-bottom: 22px;
    box-shadow: 0 4px 12px rgba(255,122,0,0.3);
}
.hero-title {
    font-size: 44px;
    line-height: 1.25;
    font-weight: 800;
    color: #1a1a2e;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}
.hero-sub {
    font-size: 17px;
    color: #555;
    line-height: 1.7;
    margin-bottom: 28px;
}
.hero-chips { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.hero-chips .chip {
    display: inline-block;
    padding: 8px 16px;
    background: #fff;
    border: 1px solid #ffe0c2;
    color: #333;
    border-radius: 24px;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(255,122,0,0.08);
}
.hero-cta {
    display: inline-block;
    background: linear-gradient(90deg, #FF7A00, #FF4D8D);
    color: #fff;
    padding: 14px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(255,122,0,0.35);
    transition: transform 0.2s, box-shadow 0.2s;
}
.hero-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(255,122,0,0.45); }
.product-hero-img { text-align: center; }
.product-hero-img img {
    max-height: 1710px;          /* 1140 × 1.5 = 1710 */
    width: auto;
    max-width: 100%;
    display: inline-block;
    /* 无圆角、无阴影 —— 让智子直接融入网页背景 */
    border-radius: 0;
    box-shadow: none;
    background: transparent;
    object-fit: contain;
}
@media (max-width: 900px) {
    .product-hero-inner { grid-template-columns: 1fr; gap: 32px; }
    .product-hero-text, .product-hero-img { order: initial; }
    .hero-title { font-size: 32px; }
    .product-hero-img img { max-height: 1000px; }
}

/* 用户中心移动端 */
@media (max-width: 768px) {
    .user-layout { grid-template-columns: 1fr; }
    .user-sidebar { position: static; }
}

/* ===== 用户中心 - 账号信息面板 (模仿腾讯云) ===== */
.user-info-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 32px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}
.user-info-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text, #1f2937);
    margin: 0 0 22px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border);
}
.user-info-grid {
    display: grid;
    grid-template-columns: 80px 1fr 1fr;
    gap: 16px 40px;
    align-items: start;
}
.user-info-avatar {
    position: relative;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    background: linear-gradient(135deg, #4A8AF4 0%, #2563EB 100%);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    grid-row: 1 / span 3;
}
.user-info-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.user-info-avatar-fallback {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
    font-weight: 600;
    line-height: 1;
}
.user-info-avatar-edit {
    position: absolute;
    right: -2px;
    bottom: -2px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.user-info-rows {
    display: flex;
    flex-direction: column;
    gap: 18px;
    min-width: 0;
}
.user-info-row {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 28px;
}
.user-info-label {
    color: #6b7280;
    font-size: 14px;
    min-width: 72px;
    flex-shrink: 0;
}
.user-info-value {
    color: #1f2937;
    font-size: 14px;
    font-weight: 500;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.user-info-link {
    color: #2563EB;
    font-size: 13px;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
}
.user-info-link:hover { text-decoration: underline; }
.user-info-copy {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: #6b7280;
    font-size: 13px;
    flex-shrink: 0;
    transition: all 0.15s;
}
.user-info-copy:hover { background: #f3f4f6; color: #2563EB; }
.user-info-label-spacer { width: 28px; flex-shrink: 0; }
.user-info-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
}
.tag-success { background: #ecfdf5; color: #059669; }
.tag-muted { background: #f3f4f6; color: #6b7280; }

/* 提示条 */
.user-info-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: #eff6ff;
    border: 1px solid #dbeafe;
    border-radius: 8px;
    margin-bottom: 8px;
    color: #1e40af;
    font-size: 13px;
    line-height: 1.6;
}
.user-info-tip-icon { font-size: 16px; flex-shrink: 0; }

/* 登录方式列表 */
.login-methods-list { margin-top: 8px; }
.login-method-item {
    display: grid;
    grid-template-columns: 160px 1fr 200px auto;
    align-items: center;
    gap: 20px;
    padding: 18px 0;
    border-bottom: 1px solid #f0f0f0;
    font-size: 14px;
}
.login-method-item:last-child { border-bottom: none; }
.login-method-name {
    color: #1f2937;
    font-weight: 500;
}
.login-method-desc {
    color: #6b7280;
    font-size: 13px;
}
.login-method-status {
    color: #1f2937;
    font-size: 14px;
}
.login-method-status-empty {
    color: #9ca3af;
}
.login-method-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: flex-end;
    min-width: 120px;
}

@media (max-width: 768px) {
    .user-info-grid {
        grid-template-columns: 64px 1fr;
        gap: 16px 20px;
    }
    .user-info-rows { grid-column: 2; }
    .user-info-rows.user-info-rows + .user-info-rows { grid-column: 2; }
    .login-method-item {
        grid-template-columns: 1fr;
        gap: 6px;
        padding: 14px 0;
    }
    .login-method-actions { justify-content: flex-start; }
}