/* ═══════════════════════════════════════════════════════════
   brand-home.css —— 品牌简介首页专用样式
   类名统一 bh- 前缀，避免与 style.css 中 .hero 等既有类冲突。
   配色/圆角/阴影/字体全部继承 style.css 的 :root 设计令牌。
   ═══════════════════════════════════════════════════════════ */

/* ─── Hero 品牌主视觉 ─── */
.bh-hero { background: linear-gradient(160deg, #3b2f23 0%, #2a2017 62%, #221a12 100%); color: #fff; position: relative; overflow: hidden; }
.bh-hero::after { content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 82% 18%, rgba(216,180,106,.16), transparent 46%),
                radial-gradient(circle at 8% 88%, rgba(185,138,61,.10), transparent 40%);
    pointer-events: none; }
.bh-hero .wrap { position: relative; z-index: 1; padding: 96px 20px 104px; text-align: center; }
.bh-kicker { display: inline-block; font-size: 13px; letter-spacing: 6px; color: var(--gold-light);
    border: 1px solid rgba(216,180,106,.35); border-radius: 999px; padding: 6px 22px; margin-bottom: 26px; }
.bh-hero h1 { font-size: 44px; line-height: 1.35; letter-spacing: 4px; font-weight: 700; }
.bh-hero h1 em { font-style: normal; color: var(--gold-light); }
.bh-hero .sub { margin-top: 18px; font-size: 16px; color: #d9cfbf; letter-spacing: 1px; }
.bh-badges { display: flex; justify-content: center; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.bh-badges .badge { font-size: 13px; color: var(--gold-light); border: 1px solid rgba(185,138,61,.55);
    border-radius: 999px; padding: 7px 18px; background: rgba(185,138,61,.10); }
.bh-cta { margin-top: 42px; display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.bh-btn { display: inline-block; padding: 13px 34px; border-radius: var(--radius); font-size: 15px; letter-spacing: 1px; transition: all var(--transition); }
.bh-btn-primary { background: var(--gold); color: #fff; box-shadow: 0 6px 18px rgba(185,138,61,.35); }
.bh-btn-primary:hover { background: var(--gold-dark); color: #fff; transform: translateY(-2px); }
.bh-btn-ghost { border: 1px solid rgba(216,180,106,.6); color: var(--gold-light); }
.bh-btn-ghost:hover { background: rgba(216,180,106,.12); color: var(--gold-light); }

/* ─── 数字信条 ─── */
.bh-stats { background: var(--brown-dark); color: #d9cfbf; }
.bh-stats .wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding-top: 34px; padding-bottom: 34px; }
.bh-stat { text-align: center; }
.bh-stat b { display: block; font-size: 26px; color: var(--gold-light); letter-spacing: 1px; }
.bh-stat span { font-size: 13px; color: rgba(217,207,191,.75); }

/* ─── 通用区块 ─── */
.bh-sec { padding: 84px 0; }
.bh-sec.alt { background: var(--cream); }
.bh-sec-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.bh-sec-head .en { font-size: 12px; letter-spacing: 5px; color: var(--gold); text-transform: uppercase; }
.bh-sec-head h2 { font-size: 30px; margin-top: 10px; letter-spacing: 2px; color: var(--brown); }
.bh-sec-head h2::after { content: ''; display: block; width: 46px; height: 3px; background: var(--gold); border-radius: 2px; margin: 16px auto 0; }
.bh-sec-head p { margin-top: 14px; color: var(--muted); font-size: 15px; }

/* ─── 品牌故事 ─── */
.bh-story { display: grid; grid-template-columns: 5fr 6fr; gap: 48px; align-items: center; }
.bh-story-visual { border-radius: var(--radius); min-height: 360px; box-shadow: var(--shadow-lg);
    position: relative; overflow: hidden;
    background: linear-gradient(155deg, #6b543a 0%, var(--brown) 55%, var(--brown-dark) 100%);
    display: flex; align-items: center; justify-content: center; }
.bh-story-visual::before { content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 75% 22%, rgba(216,180,106,.30), transparent 42%); }
.bh-story-visual span { font-size: 96px; opacity: .9; position: relative; }
.bh-story-visual figcaption { position: absolute; bottom: 0; left: 0; right: 0; padding: 40px 24px 18px;
    text-align: center; background: linear-gradient(180deg, transparent, rgba(26,18,13,.78));
    color: var(--gold-light); font-size: 13px; letter-spacing: 3px; }
.bh-story-text p { margin-bottom: 18px; color: var(--text); text-align: justify; }
.bh-story-text .lead { font-size: 17px; color: var(--brown); font-weight: 600; }
.bh-story-text .sign { color: var(--gold-dark); letter-spacing: 3px; font-size: 14px; }

/* ─── 品牌使命三支柱 ─── */
.bh-pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bh-pillar { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 38px 30px; text-align: center; box-shadow: var(--shadow); transition: all var(--transition); }
.bh-pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--gold-light); }
.bh-pillar .ico { width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%;
    background: linear-gradient(145deg, var(--gold-light), var(--gold)); color: #fff;
    display: flex; align-items: center; justify-content: center; font-size: 28px;
    box-shadow: 0 6px 14px rgba(185,138,61,.30); }
.bh-pillar h3 { font-size: 19px; color: var(--brown); letter-spacing: 2px; margin-bottom: 10px; }
.bh-pillar p { font-size: 14px; color: var(--muted); }

/* ─── 品质溯源 ─── */
.bh-trace { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; position: relative; }
.bh-trace::before { content: ''; position: absolute; top: 34px; left: 12%; right: 12%; height: 2px;
    background: repeating-linear-gradient(90deg, var(--gold-light) 0 8px, transparent 8px 16px); }
.bh-step { text-align: center; position: relative; }
.bh-step .num { width: 68px; height: 68px; margin: 0 auto 18px; border-radius: 50%;
    background: var(--white); border: 2px solid var(--gold); color: var(--gold-dark);
    display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 700;
    position: relative; z-index: 1; box-shadow: var(--shadow); }
.bh-step h3 { font-size: 17px; color: var(--brown); margin-bottom: 8px; letter-spacing: 1px; }
.bh-step p { font-size: 13.5px; color: var(--muted); max-width: 250px; margin: 0 auto; }

/* ─── 品牌臻品 ─── */
.bh-product-card { display: grid; grid-template-columns: 5fr 7fr; border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow-lg); background: var(--white); border: 1px solid var(--line); }
.bh-product-visual { background: linear-gradient(160deg, var(--cream-dark) 0%, var(--cream) 70%);
    display: flex; align-items: center; justify-content: center; padding: 26px; }
.bh-product-visual img { max-width: 100%; max-height: 400px; width: auto; height: auto;
    object-fit: contain; border-radius: var(--radius-sm); box-shadow: var(--shadow); }
.bh-product-info { padding: 46px 44px; }
.bh-product-info .en { font-size: 11px; letter-spacing: 4px; color: var(--gold); text-transform: uppercase; }
.bh-product-info h3 { font-size: 26px; color: var(--brown); margin: 10px 0 4px; letter-spacing: 1px; }
.bh-product-info .sub-title { color: var(--gold-dark); font-size: 14px; letter-spacing: 1px; }
.bh-product-info .desc { margin: 18px 0 22px; color: var(--muted); font-size: 14.5px; }
.bh-spec-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }
.bh-spec-chips span { font-size: 12.5px; color: var(--brown); background: var(--cream);
    border: 1px solid var(--line); border-radius: 999px; padding: 5px 14px; }

/* ─── 四大锁鲜工艺 ─── */
.bh-craft { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.bh-craft-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 30px 22px; text-align: center; box-shadow: var(--shadow); transition: all var(--transition); }
.bh-craft-card:hover { border-color: var(--gold-light); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.bh-craft-card .ico { font-size: 34px; margin-bottom: 14px; }
.bh-craft-card h3 { font-size: 16px; color: var(--brown); margin-bottom: 8px; }
.bh-craft-card p { font-size: 13px; color: var(--muted); }

/* ─── 品牌动态 + 知识科普 ─── */
.bh-media-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.bh-media-col .col-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 22px; }
.bh-media-col .col-head h2 { font-size: 22px; color: var(--brown); letter-spacing: 2px; }
.bh-media-col .col-head h2::before { content: '◆ '; color: var(--gold); font-size: 14px; }
.bh-media-col .col-head a { font-size: 13px; }
.bh-media-item { display: flex; flex-direction: column; min-height: 96px;
    background: var(--white); border: 1px solid var(--line);
    border-radius: var(--radius); padding: 20px 22px; margin-bottom: 14px; box-shadow: var(--shadow); transition: all var(--transition); }
.bh-media-item:hover { border-color: var(--gold-light); box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.bh-media-item h3 { font-size: 15.5px; color: var(--text); font-weight: 600; margin-bottom: 6px;
    line-height: 1.5; min-height: 46.5px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.bh-media-item:hover h3 { color: var(--gold-dark); }
.bh-media-item .meta { font-size: 12.5px; color: var(--muted); margin-top: auto; }
.bh-media-item .tag { display: inline-block; font-size: 11px; color: var(--gold-dark); background: var(--cream);
    border: 1px solid var(--line); border-radius: 4px; padding: 1px 8px; margin-right: 10px; }

/* ─── 致同行 · 品牌澄清 ─── */
.bh-peers-quote { max-width: 820px; margin: 0 auto 26px; padding: 26px 34px;
    background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--gold);
    border-radius: var(--radius); box-shadow: var(--shadow); color: var(--text); font-size: 15px; line-height: 2; }
.bh-peers-quote em { font-style: normal; color: var(--gold-dark); font-weight: 600; }
.bh-clarify { max-width: 820px; margin: 0 auto 44px; padding: 26px 34px;
    background: linear-gradient(160deg, var(--brown) 0%, var(--brown-dark) 100%);
    border-radius: var(--radius); color: #e9dfc8; box-shadow: var(--shadow-lg);
    font-size: 15px; line-height: 2; position: relative; overflow: hidden; }
.bh-clarify::after { content: '❝'; position: absolute; right: 22px; top: 2px; font-size: 72px; color: rgba(216,180,106,.14); }
.bh-clarify strong { color: var(--gold-light); }
.bh-adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 0 auto 32px; }
.bh-adv-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
    padding: 24px 20px; text-align: center; box-shadow: var(--shadow); transition: all var(--transition); }
.bh-adv-card:hover { border-color: var(--gold-light); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.bh-adv-card .ico { font-size: 30px; margin-bottom: 10px; }
.bh-adv-card h3 { font-size: 15.5px; color: var(--brown); margin-bottom: 8px; letter-spacing: 1px; }
.bh-adv-card p { font-size: 13px; color: var(--muted); }
.bh-peers-close { text-align: center; color: var(--muted); font-size: 14px; letter-spacing: 1px; }

/* ─── 品鉴渠道 ─── */
.bh-contact-band { background: linear-gradient(160deg, var(--brown) 0%, var(--brown-dark) 100%);
    color: #d9cfbf; text-align: center; padding: 64px 0; }
.bh-contact-band h2 { color: #fff; font-size: 24px; letter-spacing: 3px; margin-bottom: 12px; }
.bh-contact-band h2 em { font-style: normal; color: var(--gold-light); }
.bh-contact-band p { font-size: 15px; }
.bh-channels { display: flex; justify-content: center; gap: 18px; margin-top: 28px; flex-wrap: wrap; }
.bh-channels a { border: 1px solid rgba(216,180,106,.45); border-radius: var(--radius);
    padding: 12px 30px; font-size: 14px; color: var(--gold-light); background: rgba(185,138,61,.08); }
.bh-channels a:hover { background: rgba(185,138,61,.18); color: var(--gold-light); }

/* ─── 响应式 ─── */
@media (max-width: 860px) {
    .bh-hero h1 { font-size: 30px; }
    .bh-hero .wrap { padding: 70px 20px 80px; }
    .bh-stats .wrap { grid-template-columns: repeat(2, 1fr); }
    .bh-story, .bh-product-card, .bh-media-grid { grid-template-columns: 1fr; }
    .bh-pillars, .bh-trace { grid-template-columns: 1fr; }
    .bh-trace::before { display: none; }
    .bh-craft, .bh-adv-grid { grid-template-columns: repeat(2, 1fr); }
    .bh-product-info { padding: 30px 24px; }
}