/* ============ 基础变量 ============ */
:root {
    --blue: #1C1E54;
    --blue2: #2D2F6B;
    --blue3: #3D3F8B;
    --blue-light: #EEF0FA;
    --accent: #FF7A00;
    --accent-dark: #E86A00;
    --accent-light: #FFF3E6;
    --green: #12A150;
    --red: #E23B3B;
    --text: #1F2337;
    --text-sub: #5C6280;
    --text-mute: #8A90A8;
    --border: #E6E9F2;
    --bg: #F5F7FA;
    --card: #FFFFFF;
    --radius: 14px;
    --radius-sm: 9px;
    --shadow: 0 4px 16px rgba(28, 30, 84, .08);
    --shadow-lg: 0 12px 32px rgba(28, 30, 84, .14);
    --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--blue3); }
img { max-width: 100%; }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: min(1240px, 100% - 32px); margin: 0 auto; }
.mono { font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; }

/* ============ 按钮 ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 40px;
    padding: 0 18px;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--blue);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all .22s var(--ease);
}
.btn:hover { background: var(--blue3); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 18px rgba(28, 30, 84, .22); }
.btn-accent { background: linear-gradient(135deg, #FF9436, var(--accent)); }
.btn-accent:hover { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; box-shadow: 0 8px 18px rgba(255, 122, 0, .3); }
.btn-outline { background: #fff; color: var(--blue); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn-sm { height: 32px; padding: 0 12px; font-size: 13px; }
.btn-block { width: 100%; }
.btn-lg { height: 48px; padding: 0 26px; font-size: 16px; }

/* ============ 顶部导航 ============ */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: #fff;
    border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 18px; height: 66px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 800; color: var(--blue); letter-spacing: -.3px; }
.logo-mark {
    width: 36px; height: 36px; border-radius: 10px;
    background: linear-gradient(135deg, var(--blue), var(--blue3));
    color: #fff; display: grid; place-items: center; font-size: 16px; font-weight: 800;
}
.nav { display: flex; gap: 4px; margin-left: 10px; }
.nav a {
    padding: 8px 14px; border-radius: 8px; font-size: 15px; font-weight: 500; color: var(--text-sub);
}
.nav a:hover, .nav a.on { background: var(--blue-light); color: var(--blue); }
.header-search { flex: 1; display: flex; max-width: 380px; margin-left: auto; }
.header-search input {
    flex: 1; height: 38px; padding: 0 14px; border: 1px solid var(--border);
    border-right: none; border-radius: 8px 0 0 8px; outline: none; font-size: 14px; background: #fff;
}
.header-search input:focus { border-color: var(--blue3); }
.header-search button {
    height: 38px; padding: 0 16px; border: none; border-radius: 0 8px 8px 0;
    background: var(--blue); color: #fff; font-size: 14px; cursor: pointer; transition: background .2s var(--ease);
}
.header-search button:hover { background: var(--blue3); }
.header-actions { display: flex; gap: 8px; align-items: center; }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; cursor: pointer; color: var(--blue); }

.mobile-nav { display: none; background: #fff; border-top: 1px solid var(--border); padding: 8px 0; }
.mobile-nav a { display: block; padding: 10px 16px; font-size: 15px; color: var(--text-sub); }

/* ============ Hero ============ */
.hero {
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue2) 55%, var(--blue3) 100%);
    color: #fff; padding: 56px 0 66px; position: relative; overflow: hidden;
}
.hero::after {
    content: ''; position: absolute; right: -120px; top: -80px; width: 420px; height: 420px;
    background: radial-gradient(circle, rgba(255, 122, 0, .28), transparent 65%); border-radius: 50%;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 44px; align-items: start; }
.hero h1 { margin: 0 0 14px; font-size: 38px; line-height: 1.25; font-weight: 800; letter-spacing: -.5px; }
.hero p.sub { margin: 0 0 26px; font-size: 16px; opacity: .9; }
.hero-search { background: #fff; border-radius: var(--radius); padding: 8px; display: flex; gap: 8px; box-shadow: var(--shadow-lg); }
.hero-search input {
    flex: 1; height: 46px; padding: 0 16px; border: none; outline: none; font-size: 15px; border-radius: 8px; background: #fff; color: var(--text);
}
.hero-search button { height: 46px; padding: 0 26px; border: none; border-radius: 8px; background: linear-gradient(135deg, #FF9436, var(--accent)); color: #fff; font-size: 15px; font-weight: 700; cursor: pointer; }
.hero-tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.hero-tags span { font-size: 13px; opacity: .85; }
.hero-tags a {
    display: inline-block; padding: 5px 12px; border-radius: 20px; font-size: 13px;
    background: rgba(255, 255, 255, .14); color: #fff; border: 1px solid rgba(255, 255, 255, .22);
}
.hero-tags a:hover { background: #fff; color: var(--blue); }
.hero-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.hero-card {
    background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 12px; padding: 14px 16px; backdrop-filter: blur(6px); transition: all .25s var(--ease);
}
.hero-card:hover { background: rgba(255, 255, 255, .18); transform: translateY(-3px); }
.hero-card .dname { font-size: 17px; font-weight: 700; letter-spacing: -.2px; word-break: break-all; }
.hero-card .dprice { margin-top: 6px; font-size: 13px; color: #FFC79A; font-weight: 600; }

/* ============ 信任条 ============ */
.trust { background: #fff; border-bottom: 1px solid var(--border); }
.trust-inner { display: grid; grid-template-columns: repeat(5, 1fr); }
.trust-item { padding: 20px 10px; text-align: center; border-right: 1px solid var(--border); }
.trust-item:last-child { border-right: none; }
.trust-num { font-size: 24px; font-weight: 800; color: var(--blue); letter-spacing: -.5px; }
.trust-label { font-size: 13px; color: var(--text-mute); margin-top: 2px; }

/* ============ 通用区块 ============ */
.section { padding: 52px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 24px; }
.section-head h2 { margin: 0; font-size: 24px; font-weight: 800; color: var(--blue); letter-spacing: -.3px; }
.section-head .more { font-size: 14px; color: var(--text-mute); }
.section-head .more:hover { color: var(--accent); }

/* ============ 域名卡片 ============ */
.domain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.domain-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.dcard {
    background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 18px; display: flex; flex-direction: column; transition: all .25s var(--ease); position: relative;
}
.dcard:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: #C9CEEA; }
.dcard-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; }
.dcard-name {
    font-size: 20px; font-weight: 800; color: var(--blue); word-break: break-all; line-height: 1.25;
    letter-spacing: -.3px;
}
.dcard-name .tld { color: var(--accent); font-weight: 700; }
.badge {
    display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 12px;
    background: var(--blue-light); color: var(--blue2); white-space: nowrap; line-height: 18px;
}
.badge-3 { background: linear-gradient(135deg, var(--blue), var(--blue3)); color: #fff; }
.badge-sold { background: #EDEFF5; color: var(--text-mute); }
.badge-hot { background: var(--accent-light); color: var(--accent-dark); }
.dcard-desc { margin: 10px 0 12px; font-size: 13px; color: var(--text-sub); min-height: 40px; }
.dcard-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.dcard-tags .tag { font-size: 12px; padding: 2px 8px; border-radius: 5px; background: #F2F4FA; color: var(--text-sub); }
.dcard-price { margin-top: auto; display: flex; align-items: baseline; gap: 6px; }
.price-main { font-size: 20px; font-weight: 800; color: var(--accent); letter-spacing: -.3px; }
.price-note { font-size: 12px; color: var(--text-mute); }
.dcard-actions { display: flex; gap: 8px; margin-top: 14px; }
.dcard-actions .btn { flex: 1; }

/* ============ 分类入口 ============ */
.cat-block { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
.cat-block h3 { margin: 0 0 12px; font-size: 15px; color: var(--blue); font-weight: 700; }
.cat-list { display: flex; flex-wrap: wrap; gap: 8px; }
.cat-list a {
    padding: 6px 14px; border-radius: 20px; background: #F5F7FC; color: var(--text-sub); font-size: 13px;
    border: 1px solid transparent; transition: all .2s var(--ease);
}
.cat-list a:hover { background: var(--blue); color: #fff; transform: translateY(-2px); }
.cat-list a.on { background: var(--blue-light); color: var(--blue); border-color: #C9CEEA; font-weight: 600; }
.cat-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ============ 流程步骤 ============ */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 16px; text-align: center; position: relative; }
.step-no {
    width: 34px; height: 34px; margin: 0 auto 10px; border-radius: 50%; display: grid; place-items: center;
    background: linear-gradient(135deg, var(--blue), var(--blue3)); color: #fff; font-weight: 800; font-size: 15px;
}
.step h4 { margin: 0 0 6px; font-size: 15px; color: var(--blue); }
.step p { margin: 0; font-size: 13px; color: var(--text-mute); }

/* ============ 案例 & FAQ ============ */
.case-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.case-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; transition: all .25s var(--ease); }
.case-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.case-domain { font-size: 17px; font-weight: 700; color: var(--blue); font-family: Consolas, monospace; }
.case-note { font-size: 13px; color: var(--text-sub); margin-top: 6px; }
.case-price { margin-top: 10px; font-size: 14px; color: var(--accent); font-weight: 700; }

.faq-list { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-q { padding: 16px 20px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-q:hover { background: #FAFBFF; }
.faq-a { padding: 0 20px 16px; font-size: 14px; color: var(--text-sub); display: none; }
.faq-item.open .faq-a { display: block; }
.faq-q .arrow { transition: transform .2s var(--ease); color: var(--text-mute); }
.faq-item.open .faq-q .arrow { transform: rotate(90deg); }

/* ============ 底部 CTA ============ */
.cta-band { background: linear-gradient(135deg, var(--blue), var(--blue3)); color: #fff; padding: 46px 0; }
.cta-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.cta-inner h2 { margin: 0 0 10px; font-size: 26px; font-weight: 800; }
.cta-inner p { margin: 0 0 18px; opacity: .9; }
.cta-form { background: #fff; border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-lg); }

/* ============ 表单 ============ */
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; color: var(--text-sub); margin-bottom: 6px; font-weight: 600; }
.form-row input, .form-row select, .form-row textarea {
    width: 100%; height: 42px; padding: 0 12px; border: 1px solid var(--border); border-radius: var(--radius-sm);
    outline: none; font-size: 14px; font-family: inherit; color: var(--text); background: #fff;
    transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.form-row textarea { height: auto; padding: 10px 12px; resize: vertical; min-height: 76px; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
    border-color: var(--blue3); box-shadow: 0 0 0 3px rgba(61, 63, 139, .12);
}
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }

/* ============ 页脚 ============ */
.footer { background: #14162F; color: #B9BDD4; padding: 40px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.footer h4 { color: #fff; font-size: 15px; margin: 0 0 12px; }
.footer a { color: #B9BDD4; font-size: 14px; }
.footer a:hover { color: #fff; }
.footer li { margin-bottom: 8px; }
.footer-bottom { margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .1); font-size: 13px; text-align: center; }
.contact-chip {
    display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 20px;
    background: rgba(255, 255, 255, .08); color: #fff; font-size: 14px; margin-right: 8px; margin-bottom: 8px;
}

/* ============ 列表页 ============ */
.list-layout { display: grid; grid-template-columns: 250px 1fr; gap: 22px; align-items: start; }
.filter-panel { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; position: sticky; top: 82px; }
.filter-group { margin-bottom: 20px; }
.filter-group:last-child { margin-bottom: 0; }
.filter-group h4 { margin: 0 0 10px; font-size: 14px; color: var(--blue); font-weight: 700; }
.filter-opts { display: flex; flex-wrap: wrap; gap: 6px; }
.filter-opts a {
    padding: 5px 11px; border-radius: 7px; font-size: 13px; background: #F5F7FC; color: var(--text-sub);
    border: 1px solid transparent; transition: all .18s var(--ease);
}
.filter-opts a:hover { background: var(--blue-light); color: var(--blue2); }
.filter-opts a.on { background: var(--blue); color: #fff; }
.filter-opts a .cnt { opacity: .6; font-size: 11px; margin-left: 3px; }

.list-toolbar { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 16px; }
.toolbar-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.search-box { flex: 1; min-width: 220px; display: flex; }
.search-box input {
    flex: 1; height: 40px; padding: 0 14px; border: 1px solid var(--border); border-right: none;
    border-radius: 8px 0 0 8px; outline: none; font-size: 14px;
}
.search-box button { height: 40px; padding: 0 18px; border: none; border-radius: 0 8px 8px 0; background: var(--blue); color: #fff; cursor: pointer; }
.sort-opts { display: flex; gap: 6px; }
.sort-opts a { padding: 8px 12px; border-radius: 7px; font-size: 13px; background: #F5F7FC; color: var(--text-sub); }
.sort-opts a.on { background: var(--blue); color: #fff; }
.result-meta { font-size: 13px; color: var(--text-mute); margin-bottom: 14px; }
.chip-filter { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 16px; background: var(--blue-light); color: var(--blue2); font-size: 12px; margin-right: 8px; }
.chip-filter a { color: var(--text-mute); font-weight: 700; }

.pagination { margin-top: 24px; display: flex; justify-content: center; gap: 6px; flex-wrap: wrap; }
.pagination a, .pagination span {
    min-width: 36px; height: 36px; padding: 0 10px; display: inline-flex; align-items: center; justify-content: center;
    border-radius: 8px; background: #fff; border: 1px solid var(--border); font-size: 14px; color: var(--text-sub);
}
.pagination .active { background: var(--blue); color: #fff; border-color: var(--blue); }
.pagination a:hover { border-color: var(--blue3); color: var(--blue); }

.empty { background: #fff; border: 1px dashed var(--border); border-radius: var(--radius); padding: 60px 20px; text-align: center; color: var(--text-mute); }

/* ============ 详情页 ============ */
.detail-layout { display: grid; grid-template-columns: 1fr 360px; gap: 22px; align-items: start; }
.detail-main { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.detail-head { border-bottom: 1px solid var(--border); padding-bottom: 20px; margin-bottom: 20px; }
.detail-domain { font-size: 34px; font-weight: 800; color: var(--blue); letter-spacing: -.8px; word-break: break-all; line-height: 1.2; }
.detail-domain .tld { color: var(--accent); }
.detail-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.detail-price-row { margin-top: 16px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.detail-price { font-size: 30px; font-weight: 800; color: var(--accent); letter-spacing: -.5px; }
.detail-block { margin-bottom: 26px; }
.detail-block h3 { margin: 0 0 12px; font-size: 17px; color: var(--blue); font-weight: 700; display: flex; align-items: center; gap: 8px; }
.detail-block h3::before { content: ''; width: 4px; height: 16px; border-radius: 2px; background: linear-gradient(135deg, var(--blue), var(--accent)); }
.detail-block p { margin: 0 0 8px; font-size: 14px; color: var(--text-sub); }
.sell-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.sell-point { background: #FAFBFF; border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.sell-point h5 { margin: 0 0 4px; font-size: 14px; color: var(--blue); }
.sell-point p { margin: 0; font-size: 13px; color: var(--text-sub); }
.param-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.param-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.param-table td:first-child { width: 120px; color: var(--text-mute); background: #FAFBFF; }
.param-table tr:last-child td { border-bottom: none; }

.inquiry-panel { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; position: sticky; top: 82px; box-shadow: var(--shadow); }
.inquiry-panel h3 { margin: 0 0 4px; font-size: 18px; color: var(--blue); font-weight: 800; }
.inquiry-panel .sub { font-size: 13px; color: var(--text-mute); margin-bottom: 16px; }
.wechat-box { background: var(--accent-light); border: 1px dashed #FFC79A; border-radius: 10px; padding: 14px; text-align: center; margin-top: 14px; }
.wechat-box .wx-id { font-size: 16px; font-weight: 700; color: var(--accent-dark); }

.breadcrumb { font-size: 13px; color: var(--text-mute); padding: 16px 0; }
.breadcrumb a { color: var(--text-mute); }
.breadcrumb a:hover { color: var(--blue3); }

/* ============ 移动端底部固定栏 ============ */
.mobile-bar {
    display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; background: #fff;
    border-top: 1px solid var(--border); padding: 8px 12px; gap: 8px; box-shadow: 0 -4px 16px rgba(0, 0, 0, .06);
}
.mobile-bar .btn { flex: 1; height: 44px; }
.filter-drawer-mask { display: none; position: fixed; inset: 0; background: rgba(0, 0, 0, .4); z-index: 70; }
.filter-drawer {
    display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 80; background: #fff;
    border-radius: 16px 16px 0 0; padding: 18px; max-height: 78vh; overflow-y: auto;
}
.drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.drawer-head h3 { margin: 0; font-size: 17px; color: var(--blue); }

/* ============ 提示 Toast ============ */
.toast {
    position: fixed; left: 50%; top: 30%; transform: translate(-50%, -50%) scale(.9);
    background: rgba(20, 22, 47, .94); color: #fff; padding: 14px 22px; border-radius: 10px; font-size: 15px;
    z-index: 999; opacity: 0; pointer-events: none; transition: all .25s var(--ease); max-width: 80%; text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, -50%) scale(1); }

/* ============ 后台 ============ */
.admin-body { background: #F2F4F9; }
.admin-wrap { display: grid; grid-template-columns: 210px 1fr; min-height: 100vh; }
.admin-side { background: var(--blue); color: #C9CCE6; padding: 18px 0; }
.admin-side .brand { padding: 0 20px 18px; color: #fff; font-size: 17px; font-weight: 800; border-bottom: 1px solid rgba(255, 255, 255, .12); }
.admin-side a { display: block; padding: 12px 20px; color: #C9CCE6; font-size: 14px; }
.admin-side a:hover, .admin-side a.on { background: rgba(255, 255, 255, .1); color: #fff; }
.admin-main { padding: 22px 26px; }
.admin-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.admin-head h2 { margin: 0; font-size: 20px; color: var(--blue); }
.admin-card { background: #fff; border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); margin-bottom: 18px; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.stat-card { background: #fff; border-radius: var(--radius); padding: 16px 18px; box-shadow: var(--shadow); }
.stat-card .num { font-size: 26px; font-weight: 800; color: var(--blue); }
.stat-card .lbl { font-size: 13px; color: var(--text-mute); }
.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.admin-table th, .admin-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; }
.admin-table th { background: #FAFBFF; color: var(--blue); font-weight: 700; }
.admin-table tr:hover td { background: #FAFBFF; }
.admin-login { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(135deg, var(--blue), var(--blue3)); }
.admin-login-box { background: #fff; border-radius: 16px; padding: 34px; width: 380px; box-shadow: var(--shadow-lg); }
.admin-login-box h2 { margin: 0 0 20px; font-size: 22px; color: var(--blue); text-align: center; }
.modal-mask { display: none; position: fixed; inset: 0; background: rgba(0, 0, 0, .45); z-index: 200; overflow-y: auto; padding: 40px 0; }
.modal { background: #fff; border-radius: var(--radius); width: min(640px, 94%); margin: 0 auto; padding: 22px; }
.modal h3 { margin: 0 0 16px; font-size: 18px; color: var(--blue); }

/* ============ 响应式 ============ */
@media (max-width: 1100px) {
    .hero-inner { grid-template-columns: 1fr; }
    .hero-cards { grid-template-columns: repeat(3, 1fr); }
    .domain-grid { grid-template-columns: repeat(3, 1fr); }
    .cat-wrap { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(3, 1fr); }
    .detail-layout { grid-template-columns: 1fr; }
    .inquiry-panel { position: static; }
}

@media (max-width: 768px) {
    body { font-size: 14px; padding-bottom: 62px; }
    .container { width: calc(100% - 24px); }
    .nav, .header-search { display: none; }
    .nav-toggle { display: block; }
    .mobile-nav.show { display: block; }
    .hero { padding: 34px 0 42px; }
    .hero h1 { font-size: 26px; }
    .hero-cards { grid-template-columns: repeat(2, 1fr); }
    .trust-inner { grid-template-columns: repeat(2, 1fr); }
    .trust-item { border-bottom: 1px solid var(--border); }
    .section { padding: 34px 0; }
    .domain-grid, .domain-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
    .cat-wrap { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .case-list { grid-template-columns: 1fr; }
    .cta-inner { grid-template-columns: 1fr; gap: 22px; }
    .list-layout { grid-template-columns: 1fr; }
    .filter-panel { display: none; }
    .filter-drawer.show { display: block; }
    .filter-drawer-mask.show { display: block; }
    .mobile-bar { display: flex; }
    .detail-domain { font-size: 26px; }
    .sell-points { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .admin-wrap { grid-template-columns: 1fr; }
    .admin-side { display: flex; overflow-x: auto; padding: 10px; }
    .admin-side .brand { display: none; }
    .admin-side a { padding: 8px 14px; white-space: nowrap; }
    .admin-main { padding: 16px; }
}

@media (max-width: 480px) {
    .domain-grid, .domain-grid.cols-3 { grid-template-columns: 1fr; }
    .hero-cards { grid-template-columns: 1fr; }
    .form-grid-2 { grid-template-columns: 1fr; }
}

/* ============ 一键购买平台 ============ */
.buy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}
.buy-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 14px 16px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all .22s var(--ease);
}
.buy-item:hover {
    transform: translateY(-3px);
    border-color: var(--blue3);
    box-shadow: var(--shadow-lg);
}
.buy-name { font-size: 15px; font-weight: 600; color: var(--blue); }
.buy-desc { font-size: 12px; color: var(--text-mute); }
.buy-go { margin-top: 6px; font-size: 13px; font-weight: 600; color: var(--accent); }
.buy-note { margin-top: 12px; font-size: 13px; color: var(--text-sub); }
.buy-note a { color: var(--blue3); text-decoration: underline; }

@media (max-width: 640px) {
    .buy-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   全端兼容补丁：超宽屏 / 平板 / 手机 / 小屏 / 横屏
   ============================================================ */

/* 通用：点按无蓝框、图片自适应、长按不选中 */
button, a, .btn { -webkit-tap-highlight-color: transparent; }
body { -webkit-text-size-adjust: 100%; }

/* ---------- 超宽屏 ---------- */
@media (min-width: 1500px) {
    .container { width: min(1320px, 100% - 48px); }
    .domain-grid { grid-template-columns: repeat(4, 1fr); }
    .case-list { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- 平板 769 ~ 1100 ---------- */
@media (min-width: 769px) and (max-width: 1100px) {
    .header-inner { height: 60px; gap: 12px; }
    .nav a { padding: 8px 10px; font-size: 14px; }
    .header-search { max-width: 220px; }
    .header-actions .btn { height: 34px; padding: 0 12px; }
    .hero h1 { font-size: 32px; }
    .hero-cards { grid-template-columns: repeat(3, 1fr); }
    .list-layout { grid-template-columns: 220px 1fr; gap: 16px; }
    .filter-panel { padding: 14px; }
    .detail-main { padding: 22px; }
    .inquiry-panel { padding: 18px; }
    .admin-wrap { grid-template-columns: 180px 1fr; }
    .admin-main { padding: 18px 20px; }
    .admin-side a { padding: 11px 16px; font-size: 13px; }
    .stat-grid { grid-template-columns: repeat(4, 1fr); }
    .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; }
}

/* ---------- 手机 ≤ 768 ---------- */
@media (max-width: 768px) {
    body { padding-bottom: calc(64px + env(safe-area-inset-bottom)); }
    .header-inner { height: 56px; gap: 10px; }
    .logo { font-size: 17px; gap: 8px; letter-spacing: 0; }
    .logo-mark { width: 30px; height: 30px; font-size: 14px; border-radius: 8px; }
    .header-actions { gap: 6px; }
    .header-actions .btn { height: 34px; padding: 0 12px; font-size: 13px; }
    .nav-toggle { font-size: 20px; padding: 0 2px; }
    .mobile-nav { max-height: calc(100vh - 56px); overflow-y: auto; }
    .mobile-nav .m-search { display: flex; gap: 8px; padding: 8px 16px 10px; border-bottom: 1px solid var(--border); }
    .mobile-nav .m-search input {
        flex: 1; height: 38px; padding: 0 12px; border: 1px solid var(--border);
        border-radius: 8px; outline: none; font-size: 16px; background: #fff;
    }
    .mobile-nav .m-search button {
        height: 38px; padding: 0 14px; border: none; border-radius: 8px;
        background: var(--blue); color: #fff; font-size: 14px;
    }

    /* 表单控件 16px，避免 iOS 聚焦自动放大 */
    .form-row input, .form-row select, .form-row textarea,
    .search-box input, .header-search input, .hero-search input { font-size: 16px; }
    .btn-sm { height: 36px; padding: 0 14px; font-size: 13px; }

    .hero h1 { font-size: 26px; }
    .hero p.sub { font-size: 14px; margin-bottom: 18px; }
    .hero-tags { gap: 6px; }

    .trust-inner { grid-template-columns: repeat(2, 1fr); }
    .trust-item { padding: 16px 8px; }
    .trust-item:nth-child(odd) { border-right: 1px solid var(--border); }
    .trust-item:nth-child(even) { border-right: none; }
    .trust-item:last-child { grid-column: span 2; border-right: none; border-bottom: none; }
    .trust-num { font-size: 20px; }

    .section-head h2 { font-size: 21px; }
    .dcard { padding: 15px; }
    .dcard-name { font-size: 18px; }
    .dcard-desc { min-height: 0; margin: 8px 0 10px; }
    .price-main { font-size: 18px; }

    .list-toolbar { padding: 12px; }
    .toolbar-row { gap: 8px; }
    .search-box { min-width: 0; }
    .sort-opts { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .sort-opts a { white-space: nowrap; }
    .result-meta { margin-bottom: 10px; }
    .pagination { gap: 4px; }
    .pagination a, .pagination span { min-width: 32px; height: 32px; padding: 0 8px; font-size: 13px; }
    .empty { padding: 40px 16px; }

    .detail-layout { gap: 16px; }
    .detail-main { padding: 16px; border-radius: 12px; }
    .detail-head { padding-bottom: 16px; margin-bottom: 16px; }
    .detail-domain { font-size: 24px; letter-spacing: -.4px; }
    .detail-price { font-size: 26px; }
    .detail-price-row { gap: 8px; }
    .detail-price-row > span:last-child { margin-left: 0 !important; width: 100%; }
    .detail-main .btn-lg { height: 44px; }
    .param-table { font-size: 13px; }
    .param-table td { padding: 8px; white-space: normal; word-break: break-all; }
    .param-table td:first-child { width: 92px; font-size: 13px; }
    .inquiry-panel { padding: 16px; box-shadow: none; }

    .footer { padding: 30px 0 20px; }
    .footer-grid { gap: 20px; }
    .contact-chip { font-size: 13px; padding: 7px 12px; }
    .mobile-bar { padding: 8px 12px calc(8px + env(safe-area-inset-bottom)); }
    .mobile-bar .btn { height: 44px; font-size: 14px; }

    .modal-mask { padding: 20px 0; }
    .modal { width: 92%; padding: 16px; max-height: 88vh; overflow-y: auto; }
    .modal h3 { font-size: 17px; margin-bottom: 12px; }
    .toast { font-size: 14px; max-width: 86%; }

    /* ---- 后台 ---- */
    .admin-main { padding: 14px 12px; }
    .admin-head { flex-direction: column; align-items: flex-start; gap: 6px; margin-bottom: 14px; }
    .admin-head h2 { font-size: 18px; }
    .admin-card { padding: 14px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .admin-table { min-width: 560px; font-size: 12.5px; }
    .admin-table th, .admin-table td { padding: 9px 8px; }
    .admin-table input[type="text"], .admin-table select { min-width: 96px; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 12px 14px; }
    .stat-card .num { font-size: 22px; }
    .admin-login-box { width: min(380px, 92%); padding: 26px 20px; }
    .admin-side { gap: 2px; }
    .admin-side a { padding: 8px 12px; font-size: 13px; border-radius: 8px; }
    .toolbar-row > * { flex-shrink: 0; }
}

/* ---------- 小屏 ≤ 480 ---------- */
@media (max-width: 480px) {
    .container { width: calc(100% - 20px); }
    .hero { padding: 28px 0 34px; }
    .hero h1 { font-size: 22px; }
    .hero-search { flex-direction: column; padding: 10px; gap: 8px; }
    .hero-search input { height: 44px; }
    .hero-search button { height: 44px; width: 100%; }
    .hero-cards { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .hero-card { padding: 12px; }
    .hero-card .dname { font-size: 15px; }
    .section { padding: 28px 0; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 4px; margin-bottom: 14px; }
    .section-head h2 { font-size: 19px; }
    .domain-grid, .domain-grid.cols-3 { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .dcard { padding: 13px; }
    .dcard-name { font-size: 17px; }
    .dcard-actions { gap: 6px; }
    .dcard-actions .btn { padding: 0 8px; font-size: 12.5px; }
    .footer-grid { grid-template-columns: 1fr; gap: 18px; }
    .detail-domain { font-size: 21px; }
    .detail-price { font-size: 23px; }
    .badge { font-size: 11px; padding: 2px 7px; }
    .step { padding: 15px 12px; }
    .cta-band { padding: 30px 0; }
    .cta-inner h2 { font-size: 19px; }
    .cta-form { padding: 16px; }
    .modal { width: 96%; padding: 14px; }
    .modal .btn-lg { height: 46px; }
    .toast { font-size: 13.5px; padding: 12px 16px; }
    .filter-opts a { padding: 5px 10px; font-size: 12.5px; }
    .cat-list a { padding: 6px 12px; font-size: 12.5px; }
    .admin-table { min-width: 520px; }
    .admin-card { padding: 12px; }
}

/* ---------- 横屏矮屏（手机横放） ---------- */
@media (max-height: 480px) and (orientation: landscape) {
    .modal-mask { padding: 10px 0; }
    .modal { max-height: 92vh; }
    .mobile-bar { padding: 5px 10px; }
    .mobile-bar .btn { height: 38px; }
}

/* ---------- 可响应式的行内布局替代类（避免内联样式压过媒体查询） ---------- */
.layout-side-380 { grid-template-columns: 1fr 380px; }
.steps-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1100px) {
    .layout-side-380 { grid-template-columns: 1fr; }
    .steps-4 { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 900px) {
    .steps-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .layout-side-380 { grid-template-columns: 1fr; gap: 16px; }
    .steps-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .steps-4 { grid-template-columns: 1fr; }
}

/* ---------- 无障碍：尊重「减少动效」偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}