:root {
    --bg: #0f0f0f;
    --bg-2: #1a1a1a;
    --bg-3: #222222;
    --gold: #c0a080;
    --gold-bright: #d4af37;
    --gold-dim: #8a7350;
    --text: #e8e4dc;
    --text-dim: #9a9186;
    --text-faint: #6b6359;
    --line: #3a342c;
    --white: #ffffff;
    --radius: 10px;
    --shadow: 0 8px 30px rgba(0,0,0,.45);
}

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

/* SEO：屏幕不可见但可被搜索引擎读取 */
.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

html { scroll-behavior: smooth; }

body {
    /* 全部为系统自带免费字体：苹果苹方 / Windows 微软雅黑 / 思源黑体 / 冬青黑体 */
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Source Han Sans SC', 'Hiragino Sans GB', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶部导航 ===== */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(15,15,15,.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}
.header-inner {
    max-width: 1240px; margin: 0 auto; padding: 0 20px;
    display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 36px; width: auto; }
.brand .brand-name { font-size: 20px; font-weight: 500; letter-spacing: .06em; color: var(--white); }
.brand .brand-name em { font-style: normal; color: var(--gold); }
.nav { display: flex; gap: 28px; list-style: none; }
.nav a {
    color: var(--text-dim); font-size: 15px; letter-spacing: .04em;
    transition: color .25s; padding: 6px 2px;
}
.nav a:hover, .nav a.active { color: var(--gold-bright); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 24px; cursor: pointer; }

/* ===== Hero 轮播 ===== */
.hero { position: relative; height: 86vh; min-height: 520px; overflow: hidden; }
.hero-slide {
    position: absolute; inset: 0; opacity: 0; transition: opacity 1s ease;
    display: flex; align-items: center; justify-content: center;
    background-size: cover; background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(15,15,15,.35) 0%, rgba(15,15,15,.15) 50%, rgba(15,15,15,.85) 100%);
}
.hero-content { position: relative; z-index: 2; text-align: center; padding: 0 20px; max-width: 900px; }
.hero-content .kicker {
    color: var(--gold); letter-spacing: .35em; font-size: 14px; margin-bottom: 18px;
    text-transform: uppercase;
}
.hero-content h2 { font-size: clamp(32px, 5vw, 58px); font-weight: 500; color: var(--white); letter-spacing: .1em; margin-bottom: 16px; }
.hero-content p { color: rgba(255,255,255,.85); font-size: 17px; max-width: 640px; margin: 0 auto 30px; }
.hero-content .btn {
    display: inline-block; padding: 13px 38px; border: 1px solid var(--gold-bright);
    color: var(--gold-bright); letter-spacing: .12em; font-size: 15px; border-radius: 2px;
    transition: all .3s;
}
.hero-content .btn:hover { background: var(--gold-bright); color: #1a1410; }
.hero-dots { position: absolute; bottom: 34px; left: 0; right: 0; z-index: 3; display: flex; gap: 10px; justify-content: center; }
.hero-dots button {
    width: 10px; height: 10px; border-radius: 50%; border: none; cursor: pointer;
    background: rgba(255,255,255,.35); transition: all .3s; padding: 0;
}
.hero-dots button.active { background: var(--gold-bright); transform: scale(1.25); }
.hero-arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
    background: rgba(0,0,0,.35); color: var(--white); border: 1px solid rgba(255,255,255,.2);
    width: 46px; height: 46px; border-radius: 50%; font-size: 20px; cursor: pointer;
    display: flex; align-items: center; justify-content: center; transition: all .25s;
}
.hero-arrow:hover { background: var(--gold-bright); color: #1a1410; border-color: var(--gold-bright); }
.hero-arrow.prev { left: 22px; }
.hero-arrow.next { right: 22px; }

/* ===== 通用板块 ===== */
.section { padding: 90px 0; }
.section.alt { background: var(--bg-2); }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head .kicker { color: var(--gold); letter-spacing: .3em; font-size: 13px; margin-bottom: 10px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 500; color: var(--white); letter-spacing: .08em; }
.section-head .divider { width: 60px; height: 2px; background: var(--gold); margin: 18px auto 0; }

/* ===== 品牌故事 ===== */
.brand-story { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.brand-story .story-img { position: relative; }
.brand-story .story-img img { border-radius: var(--radius); box-shadow: var(--shadow); width: 100%; }
.brand-story .story-img::before {
    content: ''; position: absolute; inset: 18px -18px -18px 18px;
    border: 1px solid var(--line); border-radius: var(--radius); z-index: -1;
}
.story-text .kicker { color: var(--gold); letter-spacing: .3em; font-size: 13px; margin-bottom: 12px; text-transform: uppercase; }
.story-text h3 { font-size: clamp(24px, 3vw, 34px); font-weight: 500; color: var(--white); margin-bottom: 22px; letter-spacing: .05em; }
.story-text p { color: var(--text-dim); margin-bottom: 16px; font-size: 15.5px; }
.story-text .story-quote {
    border-left: 3px solid var(--gold); padding: 14px 22px; margin: 26px 0;
    background: var(--bg-3); color: var(--text); font-size: 16px; border-radius: 0 6px 6px 0;
}
.story-stats { display: flex; gap: 40px; margin-top: 30px; }
.story-stats .stat b { display: block; font-size: 30px; font-weight: 500; color: var(--gold-bright); letter-spacing: .04em; }
.story-stats .stat span { color: var(--text-faint); font-size: 13px; letter-spacing: .1em; }

/* ===== 产品中心 ===== */
.product-intro {
    max-width: 880px; margin: 0 auto 38px; text-align: center;
    color: var(--text-dim); font-size: 15px; line-height: 1.95;
}
.product-intro strong { color: var(--gold-bright); font-weight: 500; }
.cat-tabs { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 44px; }
.cat-tabs button {
    background: var(--bg-3); color: var(--text-dim); border: 1px solid var(--line);
    padding: 9px 24px; border-radius: 24px; cursor: pointer; font: inherit; font-size: 14px;
    letter-spacing: .05em; transition: all .25s;
}
.cat-tabs button:hover { border-color: var(--gold-dim); color: var(--text); }
.cat-tabs button.active { background: var(--gold-bright); color: #1a1410; border-color: var(--gold-bright); font-weight: 500; }

.product-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 26px;
}
.product-card {
    background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius);
    overflow: hidden; transition: transform .3s, box-shadow .3s, border-color .3s; position: relative;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-dim); }
.product-card .p-img { aspect-ratio: 1/1; background: #111; overflow: hidden; position: relative; }
.product-card .p-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.product-card:hover .p-img img { transform: scale(1.05); }
.product-card .p-img video {
    width: 100% !important; height: 100% !important; max-width: 100%; max-height: 100%;
    object-fit: contain; background: #000; display: block; margin: 0;
}
.product-card .p-img .card-play {
    position: absolute; right: 12px; bottom: 12px; width: 42px; height: 42px; border-radius: 50%;
    background: rgba(15,15,15,.72); border: 1px solid var(--gold-dim); color: var(--gold-bright);
    display: flex; align-items: center; justify-content: center; font-size: 14px; padding-left: 2px;
    pointer-events: none; transition: all .25s; box-shadow: 0 2px 10px rgba(0,0,0,.4); z-index: 2;
}
.product-card .p-img:hover .card-play { background: var(--gold-bright); color: #1a1410; border-color: var(--gold-bright); }
.product-card .p-img .card-video-close {
    position: absolute; top: 8px; right: 8px; width: 30px; height: 30px; border-radius: 50%;
    background: rgba(15,15,15,.75); border: 1px solid var(--gold-dim); color: var(--text);
    font-size: 13px; line-height: 1; cursor: pointer; z-index: 3; display: flex;
    align-items: center; justify-content: center; transition: all .2s;
}
.product-card .p-img .card-video-close:hover { background: var(--gold-bright); color: #1a1410; }
.product-card .p-tag {
    position: absolute; top: 12px; left: 12px; background: rgba(15,15,15,.75);
    color: var(--gold); border: 1px solid var(--gold-dim); font-size: 12px;
    padding: 3px 12px; border-radius: 20px; letter-spacing: .08em; backdrop-filter: blur(4px);
}
.product-card .p-body { padding: 18px 20px 20px; }
.product-card .p-name { font-size: 17px; color: var(--white); font-weight: 500; margin-bottom: 4px; letter-spacing: .03em; }
.product-card .p-series { font-size: 13px; color: var(--text-faint); margin-bottom: 14px; }
.product-card .p-actions { display: flex; gap: 10px; align-items: center; }
.product-card .p-btn {
    flex: 1; text-align: center; padding: 10px 0; border-radius: 4px; font-size: 14px;
    letter-spacing: .06em; transition: all .25s; cursor: pointer;
}
.product-card .p-btn.detail { background: transparent; border: 1px solid var(--line); color: var(--text-dim); }
.product-card .p-btn.detail:hover { border-color: var(--gold); color: var(--gold); }
.product-card .p-btn.buy { background: var(--gold-bright); color: #1a1410; font-weight: 500; }
.product-card .p-btn.buy:hover { background: var(--gold); }
.p-empty { text-align: center; color: var(--text-faint); padding: 60px 0; display: none; }

/* ===== 产品详情弹窗 ===== */
.product-modal { position: fixed; inset: 0; z-index: 1200; display: none; align-items: center; justify-content: center; }
.product-modal.open { display: flex; }
.product-modal .modal-mask { position: absolute; inset: 0; background: rgba(0,0,0,.78); }
.product-modal .modal-box {
    position: relative; z-index: 2; width: min(920px, 92vw); max-height: 88vh; overflow: auto;
    background: var(--bg-2); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
    display: grid; grid-template-columns: 1.1fr 1fr;
}
.modal-gallery { padding: 28px; background: #111; display: flex; flex-direction: column; gap: 14px; }
.modal-gallery .g-main { aspect-ratio: 1/1; overflow: hidden; border-radius: 8px; background: #000; position: relative; }
.modal-gallery .g-main img { width: 100%; height: 100%; object-fit: cover; }
.modal-gallery .g-thumbs { display: flex; gap: 8px; flex-wrap: wrap; }
.modal-gallery .g-thumbs img { width: 58px; height: 58px; object-fit: cover; border-radius: 6px; cursor: pointer; border: 2px solid transparent; opacity: .7; }
.modal-gallery .g-thumbs img.active { border-color: var(--gold-bright); opacity: 1; }
.modal-info { padding: 34px; position: relative; }
.modal-info .close {
    position: absolute; top: 14px; right: 18px; background: none; border: none; color: var(--text-faint);
    font-size: 26px; cursor: pointer; line-height: 1;
}
.modal-info .close:hover { color: var(--text); }
.modal-info .m-tag { color: var(--gold); font-size: 13px; letter-spacing: .2em; text-transform: uppercase; }
.modal-info h3 { font-size: 24px; font-weight: 500; color: var(--white); margin: 8px 0 6px; }
.modal-info .m-series { color: var(--text-faint); font-size: 14px; margin-bottom: 20px; }
.modal-info .m-desc { color: var(--text-dim); font-size: 14.5px; margin-bottom: 24px; line-height: 1.9; }
.modal-info .m-specs { border-top: 1px solid var(--line); padding-top: 18px; margin-bottom: 26px; }
.modal-info .m-specs div { display: flex; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid rgba(58,52,44,.5); font-size: 14px; }
.modal-info .m-specs span:first-child { color: var(--text-faint); }
.modal-info .m-specs span:last-child { color: var(--text); }
.modal-info .m-actions { display: flex; gap: 12px; }
.modal-info .m-btn { flex: 1; text-align: center; padding: 13px 0; border-radius: 4px; font-size: 15px; letter-spacing: .08em; transition: all .25s; }
.modal-info .m-btn.buy { background: var(--gold-bright); color: #1a1410; font-weight: 500; }
.modal-info .m-btn.buy:hover { background: var(--gold); }
.modal-info .m-btn.close2 { background: transparent; border: 1px solid var(--line); color: var(--text-dim); }
.modal-info .m-btn.close2:hover { border-color: var(--gold); color: var(--gold); }
.modal-hint { color: var(--text-faint); font-size: 12px; margin-top: 16px; line-height: 1.7; }

/* ===== 工艺展示 ===== */
.craft-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.craft-item { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.craft-item video { width: 100%; display: block; aspect-ratio: 16/9; object-fit: cover; background: #000; }
.craft-item .craft-cap {
    position: absolute; left: 0; right: 0; top: 0; padding: 18px 24px 34px;
    background: linear-gradient(rgba(0,0,0,.82), transparent);
    color: var(--white); font-size: 15px; letter-spacing: .08em;
    pointer-events: none; /* 不遮挡视频控制条点击 */
}
.craft-item .craft-cap small { display: block; color: var(--gold); font-size: 12px; letter-spacing: .2em; margin-bottom: 2px; }

/* ===== 工艺步骤 ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 50px; }
.step { text-align: center; padding: 30px 18px; background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .3s; }
.step:hover { border-color: var(--gold-dim); }
.step .step-num {
    width: 46px; height: 46px; margin: 0 auto 16px; border-radius: 50%;
    border: 1px solid var(--gold-dim); color: var(--gold-bright); font-size: 18px;
    display: flex; align-items: center; justify-content: center; letter-spacing: 0;
}
.step h4 { color: var(--white); font-size: 16px; font-weight: 500; margin-bottom: 8px; }
.step p { color: var(--text-faint); font-size: 13.5px; }

/* ===== 品质承诺 ===== */
.promise-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.promise { text-align: center; padding: 34px 20px; }
.promise .icon { font-size: 34px; color: var(--gold-bright); margin-bottom: 16px; }
.promise h4 { color: var(--white); font-size: 16px; font-weight: 500; margin-bottom: 10px; }
.promise p { color: var(--text-faint); font-size: 13.5px; }

/* ===== 品牌资讯 ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: border-color .3s, transform .3s; }
.news-card:hover { border-color: var(--gold-dim); transform: translateY(-4px); }
.news-card .date { color: var(--gold); font-size: 12.5px; letter-spacing: .1em; margin-bottom: 10px; }
.news-card h4 { color: var(--white); font-size: 17px; font-weight: 500; margin-bottom: 10px; line-height: 1.5; }
.news-card p { color: var(--text-faint); font-size: 14px; }

/* ===== 评测报道 ===== */
.media-intro {
    max-width: 880px; margin: -22px auto 40px; text-align: center;
    color: var(--text-faint); font-size: 14px; line-height: 1.85;
}
.media-groups { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.media-group { background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 26px 14px; }
.media-group h3 { display: flex; align-items: center; gap: 10px; color: var(--white); font-size: 17px; font-weight: 500; margin-bottom: 6px; letter-spacing: .06em; }
.media-group h3 .m-count { background: var(--gold-dim); color: #1a1410; font-size: 12px; padding: 1px 9px; border-radius: 20px; font-weight: 500; }
.media-list { list-style: none; }
.media-list li { padding: 12px 0; border-bottom: 1px solid rgba(58,52,44,.55); }
.media-list li:last-child { border-bottom: none; }
.media-list .m-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.media-list .m-source { color: var(--gold); font-size: 12px; letter-spacing: .05em; }
.media-list .m-date { color: var(--text-faint); font-size: 11.5px; }
.media-list .m-title { display: block; color: var(--text-dim); font-size: 14px; line-height: 1.65; transition: color .2s; }
.media-list .m-title:hover { color: var(--gold-bright); }

/* ===== 联系我们 ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.contact-info h3 { font-size: 26px; font-weight: 500; color: var(--white); margin-bottom: 18px; }
.contact-info p { color: var(--text-dim); margin-bottom: 12px; font-size: 15px; }
.contact-info .c-item { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; color: var(--text-dim); }
.contact-info .c-item .c-ic { color: var(--gold-bright); font-size: 18px; width: 22px; text-align: center; }
.contact-info .c-item .c-tel { color: var(--gold-bright); letter-spacing: .04em; }
.contact-info .c-item .c-tel:hover { color: var(--gold); }
.contact-info .c-item .c-link { color: var(--gold-bright); transition: color .2s; }
.contact-info .c-item .c-link:hover { color: var(--gold); text-decoration: underline; }
.contact-info .c-wx { color: var(--text); letter-spacing: .06em; font-weight: 500; }
.contact-info .c-copy {
    background: var(--bg-3); color: var(--gold); border: 1px solid var(--gold-dim);
    border-radius: 4px; padding: 2px 12px; font-size: 12px; cursor: pointer;
    margin-left: 6px; letter-spacing: .05em; transition: all .2s;
}
.contact-info .c-copy:hover { background: var(--gold-bright); color: #1a1410; border-color: var(--gold-bright); }
#toast {
    position: fixed; left: 50%; bottom: 46px; transform: translateX(-50%) translateY(20px);
    background: rgba(15,15,15,.95); color: var(--gold-bright); border: 1px solid var(--gold-dim);
    border-radius: 6px; padding: 10px 26px; font-size: 14px; letter-spacing: .05em;
    opacity: 0; pointer-events: none; transition: all .3s; z-index: 2000;
}
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.contact-info .c-shop {
    display: inline-block; margin-top: 10px; padding: 12px 30px; background: var(--gold-bright);
    color: #1a1410; border-radius: 4px; font-size: 15px; letter-spacing: .06em; transition: background .25s;
}
.contact-info .c-shop:hover { background: var(--gold); }
.qr-row { display: flex; gap: 26px; justify-content: center; flex-wrap: wrap; }
.qr-box { text-align: center; }
.qr-box img { width: 130px; height: 130px; border-radius: 8px; border: 1px solid var(--line); object-fit: cover; }
.qr-box p { color: var(--text-faint); font-size: 13px; margin-top: 8px; letter-spacing: .1em; }

/* ===== 页脚 ===== */
.site-footer { background: #0a0a0a; border-top: 1px solid var(--line); padding: 44px 0 30px; }
.footer-inner { max-width: 1240px; margin: 0 auto; padding: 0 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.footer-inner .f-brand { color: var(--white); font-size: 18px; letter-spacing: .08em; }
.footer-inner .f-brand em { font-style: normal; color: var(--gold); }
.footer-inner .f-links { display: flex; gap: 26px; }
.footer-inner .f-links a { color: var(--text-faint); font-size: 14px; transition: color .25s; }
.footer-inner .f-links a:hover { color: var(--gold); }
.footer-copy { text-align: center; color: var(--text-faint); font-size: 12.5px; margin-top: 30px; padding: 0 20px; }
.footer-copy a { color: var(--text-faint); }
.footer-copy a:hover { color: var(--gold); }

/* ===== 产品中心页 ===== */
.page-hero {
    padding: 150px 0 60px; text-align: center;
    background: radial-gradient(ellipse at 50% 0%, #2a2418 0%, var(--bg) 70%);
}
.page-hero h1 { font-size: clamp(28px, 4vw, 42px); font-weight: 500; color: var(--white); letter-spacing: .1em; }
.page-hero p { color: var(--text-dim); margin-top: 12px; font-size: 15px; }
.page-products { padding: 30px 0 100px; }

/* ===== 品牌故事页 ===== */
.story-page .story-article { max-width: 860px; margin: 0 auto; color: var(--text-dim); font-size: 16px; line-height: 2; }
.story-page .story-article p { margin-bottom: 20px; }
.story-page .story-article .lead { font-size: 18px; color: var(--text); }

/* ===== 荣誉资质 ===== */
.honor-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.honor-card { text-align: center; padding: 36px 24px; background: var(--bg-3); border: 1px solid var(--line); border-radius: var(--radius); }
.honor-card .h-icon { font-size: 38px; color: var(--gold-bright); margin-bottom: 16px; }
.honor-card h4 { color: var(--white); font-size: 17px; font-weight: 500; margin-bottom: 10px; }
.honor-card p { color: var(--text-faint); font-size: 13.5px; }

/* ===== 响应式 ===== */
@media (max-width: 960px) {
    .brand-story { grid-template-columns: 1fr; gap: 40px; }
    .craft-grid, .contact-grid { grid-template-columns: 1fr; }
    .steps, .promise-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid, .honor-list { grid-template-columns: repeat(2, 1fr); }
    .media-groups { grid-template-columns: 1fr; }
    .product-modal .modal-box { grid-template-columns: 1fr; }
    .modal-gallery { padding: 20px; }
}
@media (max-width: 640px) {
    .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; background: rgba(15,15,15,.97); padding: 16px 24px; gap: 14px; border-bottom: 1px solid var(--line); }
    .nav.open { display: flex; }
    .nav-toggle { display: block; }
    .steps, .promise-grid, .news-grid, .honor-list { grid-template-columns: 1fr; }
    .hero { height: 72vh; }
    .product-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .product-card .p-body { padding: 12px 14px 14px; }
    .product-card .p-name { font-size: 15px; }
    .section { padding: 60px 0; }
    .story-stats { gap: 24px; }
}