/* ===========================================================
   腕表之家 wanbiaozhijia.cn - 全局样式
   设计风格：深色奢华 + 金色点缀，响应式自适应
   =========================================================== */

/* ---------- 基础重置 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC",
                 "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #1f1f1f;
    background: #fafafa;
    line-height: 1.6;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s; }
a:hover { color: #c9a14a; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: inherit; outline: none; }

/* ---------- 主题变量 ---------- */
:root {
    --gold: #c9a14a;
    --gold-dark: #a4822f;
    --gold-light: #e6c874;
    --dark: #1a1a1a;
    --dark-2: #232323;
    --gray: #6b6b6b;
    --gray-light: #ebebeb;
    --bg: #fafafa;
    --white: #ffffff;
    --shadow: 0 6px 24px rgba(0,0,0,.06);
    --shadow-hover: 0 12px 32px rgba(0,0,0,.12);
    --radius: 8px;
    --max-w: 1200px;
}

/* ---------- 通用容器 ---------- */
.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 20px;
}
.section { padding: 64px 0; }
.section-title {
    text-align: center;
    margin-bottom: 12px;
    font-size: 28px;
    font-weight: 600;
    color: var(--dark);
}
.section-subtitle {
    text-align: center;
    color: var(--gray);
    margin-bottom: 40px;
    font-size: 15px;
}
.text-gold { color: var(--gold); }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 500;
    transition: all .2s;
    text-align: center;
    cursor: pointer;
    border: 1px solid transparent;
}
.btn-primary {
    background: var(--gold);
    color: #fff;
}
.btn-primary:hover {
    background: var(--gold-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(201,161,74,.3);
}
.btn-outline {
    background: transparent;
    color: var(--gold);
    border-color: var(--gold);
}
.btn-outline:hover {
    background: var(--gold);
    color: #fff;
}
.btn-dark {
    background: var(--dark);
    color: #fff;
}
.btn-dark:hover { background: #000; color: var(--gold-light); }

/* ===========================================================
   顶部导航
   =========================================================== */
.navbar {
    background: rgba(26,26,26,.96);
    backdrop-filter: blur(8px);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255,255,255,.06);
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 20px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
}
.logo-mark {
    width: 36px; height: 36px;
    border: 2px solid var(--gold);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--gold);
    font-size: 16px;
    font-weight: 700;
    position: relative;
}
.logo-mark::before, .logo-mark::after {
    content: "";
    position: absolute;
    background: var(--gold);
}
.logo-mark::before { width: 2px; height: 8px; top: 2px; left: 50%; transform: translateX(-50%); }
.logo-mark::after  { width: 2px; height: 8px; bottom: 2px; left: 50%; transform: translateX(-50%); }
.logo:hover { color: var(--gold-light); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}
.nav-links a {
    color: #e8e8e8;
    font-size: 15px;
    position: relative;
    padding: 6px 0;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.nav-links a.active::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0; right: 0;
    height: 2px;
    background: var(--gold);
}
.nav-cta {
    background: var(--gold);
    color: #fff !important;
    padding: 8px 18px;
    border-radius: 6px;
}
.nav-cta:hover { background: var(--gold-dark); }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 26px; height: 20px;
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    height: 2px;
    background: #fff;
    border-radius: 1px;
    transition: all .3s;
}

/* ===========================================================
   英雄区
   =========================================================== */
.hero {
    position: relative;
    min-height: 560px;
    background:
        linear-gradient(135deg, rgba(0,0,0,.7) 0%, rgba(20,20,20,.55) 100%),
        url("https://images.unsplash.com/photo-1523275335684-37898b6baf30?w=1600&q=80") center/cover no-repeat;
    color: #fff;
    display: flex;
    align-items: center;
    padding: 80px 20px 100px;
}
.hero-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    width: 100%;
}
.hero h1 {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: 2px;
}
.hero h1 .accent { color: var(--gold); }
.hero p {
    font-size: 18px;
    color: #d8d8d8;
    margin-bottom: 32px;
    max-width: 640px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* 搜索框 */
.hero-search {
    margin-top: 40px;
    background: rgba(255,255,255,.96);
    border-radius: 12px;
    padding: 8px;
    display: flex;
    gap: 8px;
    max-width: 720px;
    box-shadow: 0 12px 32px rgba(0,0,0,.2);
}
.hero-search input {
    flex: 1;
    border: none;
    padding: 14px 18px;
    color: #1a1a1a;
    background: transparent;
    font-size: 15px;
}
.hero-search button {
    background: var(--gold);
    color: #fff;
    padding: 0 32px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 15px;
}
.hero-search button:hover { background: var(--gold-dark); }

.hero-stats {
    margin-top: 48px;
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}
.stat-item .stat-num {
    font-size: 32px;
    font-weight: 700;
    color: var(--gold);
}
.stat-item .stat-label {
    font-size: 13px;
    color: #c8c8c8;
    margin-top: 4px;
}

/* ===========================================================
   服务卡片区
   =========================================================== */
.services {
    background: #fff;
}
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-top: 32px;
}
.service-card {
    padding: 36px 28px;
    border-radius: var(--radius);
    background: #fff;
    border: 1px solid var(--gray-light);
    text-align: center;
    transition: all .25s;
}
.service-card:hover {
    border-color: var(--gold);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.service-icon {
    width: 64px; height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, #fff7e0, #f5e3a8);
    color: var(--gold-dark);
    display: flex; align-items: center; justify-content: center;
    font-size: 28px;
    margin: 0 auto 18px;
}
.service-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark);
}
.service-card p {
    color: var(--gray);
    font-size: 14px;
    line-height: 1.7;
}

/* ===========================================================
   热门腕表区
   =========================================================== */
.hot-watches { background: var(--bg); }
.watch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}
.watch-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all .25s;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}
.watch-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.watch-img {
    width: 100%;
    height: 220px;
    background: #f1ece2 center/cover no-repeat;
    position: relative;
}
.watch-tag {
    position: absolute;
    top: 12px; left: 12px;
    background: var(--dark);
    color: var(--gold);
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 4px;
    letter-spacing: 1px;
}
.watch-info { padding: 18px; flex: 1; display: flex; flex-direction: column; }
.watch-brand {
    font-size: 12px;
    color: var(--gray);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 4px;
}
.watch-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
    min-height: 44px;
}
.watch-meta {
    font-size: 12px;
    color: var(--gray);
    margin-bottom: 14px;
}
.watch-price {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.price-num {
    color: #d23a3a;
    font-size: 20px;
    font-weight: 700;
}
.price-trend {
    font-size: 12px;
    color: #2ea44f;
}
.price-trend.down { color: #d23a3a; }

/* ===========================================================
   行情/数据区
   =========================================================== */
.market { background: #fff; }
.market-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 28px;
}
.tab-btn {
    padding: 8px 20px;
    border-radius: 20px;
    background: #f3f3f3;
    color: var(--gray);
    font-size: 14px;
    transition: all .2s;
}
.tab-btn.active, .tab-btn:hover {
    background: var(--dark);
    color: var(--gold);
}

.market-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.market-table th {
    background: #f7f3e8;
    color: var(--dark);
    font-weight: 600;
    text-align: left;
    padding: 14px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--gray-light);
}
.market-table td {
    padding: 14px 16px;
    border-bottom: 1px solid #f3f3f3;
    font-size: 14px;
}
.market-table tr:hover td { background: #fdfaf2; }
.up { color: #d23a3a; font-weight: 600; }
.down { color: #2ea44f; font-weight: 600; }
.flat { color: var(--gray); }

/* ===========================================================
   品牌区/为什么选择我们
   =========================================================== */
.why-us { background: var(--dark); color: #fff; }
.why-us .section-title { color: #fff; }
.why-us .section-subtitle { color: #aaa; }
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px;
    margin-top: 32px;
}
.why-item {
    text-align: center;
    padding: 24px;
}
.why-num {
    font-size: 40px;
    font-weight: 700;
    color: var(--gold);
    margin-bottom: 12px;
}
.why-item h4 { font-size: 17px; margin-bottom: 8px; color: #fff; }
.why-item p { color: #bdbdbd; font-size: 14px; }

/* ===========================================================
   CTA 行动召唤
   =========================================================== */
.cta-banner {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    color: #fff;
    text-align: center;
    padding: 60px 20px;
}
.cta-banner h2 {
    font-size: 28px;
    margin-bottom: 14px;
    color: #fff;
}
.cta-banner p {
    color: #fff8e8;
    margin-bottom: 28px;
    font-size: 16px;
}
.cta-banner .btn-primary {
    background: var(--dark);
    color: var(--gold-light);
}
.cta-banner .btn-primary:hover {
    background: #000;
    color: var(--gold);
}

/* ===========================================================
   页脚
   =========================================================== */
.footer {
    background: #111;
    color: #aaa;
    padding: 56px 0 24px;
    font-size: 14px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer h5 {
    color: #fff;
    font-size: 15px;
    margin-bottom: 16px;
    font-weight: 600;
}
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 8px; }
.footer ul li a { color: #aaa; }
.footer ul li a:hover { color: var(--gold); }
.footer-brand p { color: #888; line-height: 1.8; margin-top: 12px; }
.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid #2a2a2a;
    color: #777;
    font-size: 13px;
}
.footer-bottom a { color: #aaa; }

/* ===========================================================
   通用页面标题
   =========================================================== */
.page-header {
    background: linear-gradient(135deg, #232323 0%, #1a1a1a 100%);
    color: #fff;
    padding: 60px 20px;
    text-align: center;
}
.page-header h1 {
    font-size: 34px;
    margin-bottom: 10px;
    color: #fff;
}
.page-header h1 .accent { color: var(--gold); }
.page-header p {
    color: #c8c8c8;
    font-size: 15px;
    max-width: 640px;
    margin: 0 auto;
}

/* ===========================================================
   筛选/搜索栏（报价、货源页）
   =========================================================== */
.filter-bar {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    margin-bottom: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}
.filter-bar input,
.filter-bar select {
    padding: 10px 14px;
    border: 1px solid var(--gray-light);
    border-radius: 6px;
    font-size: 14px;
    color: var(--dark);
    background: #fff;
    min-width: 140px;
}
.filter-bar input:focus,
.filter-bar select:focus {
    border-color: var(--gold);
}
.filter-bar input.search-input { flex: 1; min-width: 240px; }
.filter-bar button { padding: 10px 24px; }

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray);
}
.empty-state .icon { font-size: 48px; color: var(--gold); margin-bottom: 12px; }

/* ===========================================================
   货源卡片
   =========================================================== */
.source-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
.source-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    display: grid;
    grid-template-columns: 100px 1fr auto;
    gap: 20px;
    align-items: center;
    transition: all .2s;
}
.source-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.source-img {
    width: 100px; height: 100px;
    border-radius: 6px;
    background: #f5f0e2 center/cover no-repeat;
}
.source-info h4 {
    font-size: 17px;
    color: var(--dark);
    margin-bottom: 6px;
}
.source-meta {
    font-size: 13px;
    color: var(--gray);
    margin-bottom: 8px;
}
.source-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
    background: #fdf6e3;
    color: var(--gold-dark);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 4px;
    border: 1px solid #f0e3b9;
}
.tag.tag-dark { background: var(--dark); color: var(--gold); border-color: var(--dark); }
.source-action { text-align: right; }
.source-price {
    color: #d23a3a;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}
.source-merchant {
    font-size: 12px;
    color: var(--gray);
}

/* ===========================================================
   表单 (商家入驻、关于联系)
   =========================================================== */
.form-card {
    max-width: 720px;
    margin: 0 auto;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 40px;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    font-size: 14px;
    color: var(--dark);
    margin-bottom: 8px;
    font-weight: 500;
}
.form-group label .required { color: #d23a3a; margin-left: 2px; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--gray-light);
    border-radius: 6px;
    font-size: 14px;
    color: var(--dark);
    background: #fff;
    transition: border-color .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--gold); }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-tip { font-size: 12px; color: var(--gray); margin-top: 6px; }
.form-actions { text-align: center; margin-top: 8px; }

/* 关于我们 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.about-text h2 { font-size: 26px; margin-bottom: 16px; color: var(--dark); }
.about-text h2 .accent { color: var(--gold); }
.about-text p { color: var(--gray); margin-bottom: 14px; line-height: 1.9; }
.about-img {
    height: 360px;
    border-radius: var(--radius);
    background:
        linear-gradient(135deg, rgba(201,161,74,.1), rgba(0,0,0,.2)),
        url("https://images.unsplash.com/photo-1547996160-81dfa63595aa?w=800&q=80") center/cover no-repeat;
    box-shadow: var(--shadow);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 32px;
}
.value-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 28px 22px;
    text-align: center;
    box-shadow: var(--shadow);
    border-top: 3px solid var(--gold);
}
.value-card h4 { font-size: 17px; color: var(--dark); margin-bottom: 8px; }
.value-card p { color: var(--gray); font-size: 14px; }

/* 弹窗提示 */
.toast {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: var(--dark);
    color: var(--gold);
    padding: 14px 28px;
    border-radius: 8px;
    box-shadow: 0 12px 24px rgba(0,0,0,.2);
    font-size: 14px;
    opacity: 0;
    pointer-events: none;
    transition: all .3s;
    z-index: 1000;
}
.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ===========================================================
   响应式 - 平板与移动
   =========================================================== */
@media (max-width: 960px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .about-grid { grid-template-columns: 1fr; }
    .about-img { height: 240px; }
    .hero h1 { font-size: 38px; }
}

@media (max-width: 720px) {
    body { font-size: 14px; }
    .section { padding: 48px 0; }
    .section-title { font-size: 23px; }

    /* 移动端导航 */
    .nav-toggle { display: flex; }
    .nav-links {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 8px 0;
        border-top: 1px solid rgba(255,255,255,.06);
        max-height: 0;
        overflow: hidden;
        transition: max-height .3s ease;
    }
    .nav-links.open { max-height: 500px; }
    .nav-links li {
        border-bottom: 1px solid rgba(255,255,255,.06);
    }
    .nav-links a {
        display: block;
        padding: 14px 24px;
    }
    .nav-cta {
        margin: 12px 24px;
        text-align: center;
    }

    /* 英雄区 */
    .hero { min-height: 460px; padding: 50px 20px; }
    .hero h1 { font-size: 28px; letter-spacing: 1px; }
    .hero p { font-size: 15px; }
    .hero-search { flex-direction: column; padding: 12px; }
    .hero-search input { padding: 12px 14px; }
    .hero-search button { padding: 12px; width: 100%; }
    .hero-stats { gap: 24px; margin-top: 32px; }
    .stat-item .stat-num { font-size: 24px; }

    /* 货源卡片移动版 */
    .source-card {
        grid-template-columns: 80px 1fr;
        gap: 14px;
    }
    .source-img { width: 80px; height: 80px; }
    .source-action {
        grid-column: 1 / -1;
        text-align: left;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-top: 12px;
        border-top: 1px solid var(--gray-light);
    }
    .source-price { font-size: 18px; margin-bottom: 0; }

    /* 表单 */
    .form-card { padding: 28px 20px; }
    .form-row { grid-template-columns: 1fr; gap: 0; }

    /* 行情表格 */
    .market-table { font-size: 13px; }
    .market-table th, .market-table td { padding: 10px 8px; }
    .market-table th:nth-child(4), .market-table td:nth-child(4) { display: none; }

    /* 页脚 */
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .page-header h1 { font-size: 26px; }
}