/* ============================================================
   港峰鲜御 — 集团形象层（Corporate Layer）
   叠加于 style.css 之上：秩序 · 克制 · 可核验
   目录规则：
   1. 章节规范 / 2. 集团概览数据条 / 3. 业务解决方案
   4. 企业档案表 / 5. 集团 Hero 规整 / 6. 导航与页脚加厚
   7. 合作洽谈 / 8. 响应式收口
   ============================================================ */

/* ===== 1. 章节规范：编号 + 金线 + 基线分隔 ===== */
.sec-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    padding-bottom: 22px;
    margin-bottom: 52px;
    border-bottom: 1px solid var(--border);
}

.sec-head-left { max-width: 720px; }

.sec-no {
    display: block;
    font-family: var(--font-en-sans);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.32em;
    color: var(--gold-primary);
    margin-bottom: 14px;
}

.sec-title {
    font-family: var(--font-serif);
    font-size: 34px;
    line-height: 1.35;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: 0.01em;
}

.sec-title small {
    display: block;
    margin-top: 10px;
    font-family: var(--font-en-sans);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text-light);
}

.sec-aside {
    flex-shrink: 0;
    font-size: 13px;
    line-height: 1.9;
    color: var(--text-muted);
    text-align: right;
    padding-left: 24px;
    border-left: 1px solid var(--border);
}

/* ===== 2. 集团概览数据条 ===== */
.kpi-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--white);
    border: 1px solid var(--border);
}

.kpi-item {
    padding: 34px 30px;
    border-right: 1px solid var(--border);
    position: relative;
}

.kpi-item:last-child { border-right: none; }

.kpi-num {
    display: block;
    font-family: var(--font-serif);
    font-size: 42px;
    line-height: 1;
    font-weight: 600;
    color: var(--green-primary);
    letter-spacing: -0.01em;
}

.kpi-num em {
    font-size: 15px;
    font-style: normal;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 5px;
    letter-spacing: 0;
}

.kpi-label {
    display: block;
    margin-top: 14px;
    font-size: 13.5px;
    color: var(--text-muted);
    letter-spacing: 0.03em;
}

.kpi-note {
    display: block;
    margin-top: 6px;
    font-size: 11.5px;
    color: var(--text-light);
}

.corp-intro {
    margin-top: 34px;
    display: grid;
    grid-template-columns: 1.65fr 1fr;
    gap: 56px;
    align-items: start;
}

.corp-intro p {
    font-size: 15.5px;
    line-height: 2;
    color: var(--text-body);
    margin-bottom: 20px;
}

.corp-intro p strong {
    color: var(--green-primary);
    font-weight: 600;
}

.corp-tagline {
    font-family: var(--font-serif);
    font-size: 20px;
    line-height: 1.7;
    color: var(--text-dark);
    padding-left: 22px;
    border-left: 2px solid var(--gold-primary);
}

/* ===== 3. 企业档案表：可核验信息 ===== */
.corp-archive {
    margin-top: 30px;
    border-top: 1px solid var(--border);
}

.corp-archive table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.corp-archive th,
.corp-archive td {
    padding: 15px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}

.corp-archive th {
    width: 190px;
    font-weight: 400;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    background: rgba(18, 64, 42, 0.025);
}

.corp-archive td {
    color: var(--text-body);
}

.corp-archive td.mono {
    font-family: var(--font-en-sans);
    letter-spacing: 0.04em;
}

/* ===== 4. 业务解决方案矩阵 ===== */
.biz-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    background: var(--white);
    border: 1px solid var(--border);
}

.biz-item {
    position: relative;
    padding: 40px 34px 36px;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    transition: background 0.35s var(--ease-brand);
    overflow: hidden;
}

.biz-item:nth-child(3n) { border-right: none; }

.biz-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 2px;
    width: 0;
    background: var(--gold-primary);
    transition: width 0.4s var(--ease-brand);
}

.biz-item:hover { background: rgba(18, 64, 42, 0.02); }
.biz-item:hover::before { width: 100%; }

.biz-no {
    font-family: var(--font-en-sans);
    font-size: 11.5px;
    font-weight: 600;
    letter-spacing: 0.26em;
    color: var(--gold-primary);
}

.biz-name {
    font-size: 19px;
    font-weight: 600;
    color: var(--text-dark);
    margin: 16px 0 12px;
    letter-spacing: 0.01em;
}

.biz-desc {
    font-size: 14px;
    line-height: 1.85;
    color: var(--text-muted);
}

.biz-spec {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px dashed var(--border);
    font-size: 12.5px;
    color: var(--text-light);
    line-height: 1.9;
}

.biz-spec b {
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== 5. 集团 Hero 规整：去光晕 · 上网格 · 强秩序 ===== */
.hero-glow { display: none !important; }

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(18, 64, 42, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(18, 64, 42, 0.045) 1px, transparent 1px);
    background-size: 88px 88px;
    pointer-events: none;
}

.hero-content { max-width: 700px; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    border: 1px solid var(--border-gold);
    background: rgba(255, 255, 255, 0.72);
    font-size: 12.5px;
    letter-spacing: 0.12em;
    color: var(--green-primary);
    border-radius: 2px;
}

.hero-badge .badge-dot {
    width: 5px;
    height: 5px;
    background: var(--gold-primary);
    border-radius: 50%;
}

.hero-title {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.24;
}

.hero-subtitle {
    font-size: 17px;
    line-height: 1.95;
    color: var(--text-body);
    max-width: 620px;
}

.hero-subtitle strong.hero-highlight {
    font-family: var(--font-serif);
    font-size: 21px;
    color: var(--green-primary);
}

/* ===== 6. 导航加厚 · 页脚加规整 ===== */
#navbar.scrolled {
    border-bottom: 1px solid var(--border);
}

.nav-link {
    font-size: 13.5px;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.footer-inner {
    border-top: 1px solid var(--border);
}

.footer-buy-btn {
    border: 1px solid var(--border-gold);
    background: transparent;
    color: var(--gold-primary);
    border-radius: 2px;
}

.footer-buy-btn:hover {
    background: var(--gold-primary);
    color: var(--white);
}

/* ===== 7. 合作洽谈（B 端转化区） ===== */
/* 深底洽谈区：细边框 + 编号，适配 .contact-inner 墨绿底 */
.partner-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.05);
    margin: 26px auto 44px;
    max-width: 940px;
    text-align: left;
}

.partner-item {
    padding: 30px 28px;
    border-right: 1px solid rgba(255, 255, 255, 0.13);
}

.partner-item:last-child { border-right: none; }

.partner-code {
    font-family: var(--font-en-sans);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.26em;
    color: var(--gold-light);
}

.partner-name {
    font-size: 17px;
    font-weight: 600;
    color: var(--white);
    margin: 14px 0 10px;
    letter-spacing: 0.01em;
}

.partner-desc {
    font-size: 13.5px;
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.72);
}

.contact-info-card {
    border-radius: 2px;
}

/* ===== 8. 集团版通用按钮：细边框 · 直角 ===== */
.btn-primary {
    border-radius: 2px;
    letter-spacing: 0.08em;
}

.btn-outline {
    border-radius: 2px;
    letter-spacing: 0.08em;
}

/* ===== 9. 补充：Hero 副行 · 区块底色 · 合规小字 ===== */
.hero-sub-line {
    display: inline-block;
    margin-top: 14px;
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 0.14em;
    color: var(--text-muted);
}

.contact-glow { display: none !important; }
.contact-inner { border-radius: 6px; }

.section-group { background: var(--white); }
.section-business { background: var(--cream); }
.section-group + .section-business { border-top: 1px solid var(--border); }

.biz-note {
    display: block;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-light);
}

.kpi-item .lang-en,
.corp-intro .lang-en,
.biz-desc .lang-en { line-height: inherit; }

/* ===== 10. 响应式收口 ===== */
@media (max-width: 1080px) {
    .corp-intro { grid-template-columns: 1fr; gap: 34px; }
    .biz-grid { grid-template-columns: repeat(2, 1fr); }
    .biz-item:nth-child(3n) { border-right: 1px solid var(--border); }
    .biz-item:nth-child(2n) { border-right: none; }
    .partner-grid { grid-template-columns: 1fr; }
    .partner-item { border-right: none; border-bottom: 1px solid var(--border); }
    .partner-item:last-child { border-bottom: none; }
    .sec-head { flex-direction: column; align-items: flex-start; gap: 16px; }
    .sec-aside { text-align: left; padding-left: 0; border-left: none; padding-top: 14px; border-top: 1px solid var(--border); width: 100%; }
}

/* 官方信源矩阵 —— 供采购方与 AI 检索核验主体一致性 */
.src-matrix {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    margin: 14px 0 4px;
    padding: 16px 18px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: rgba(18, 64, 42, 0.03);
    list-style: none;
}
.src-matrix li {
    font-size: 14px;
    line-height: 1.7;
}
.src-matrix a {
    color: var(--ink);
    text-decoration: none;
    border-bottom: 1px solid rgba(168, 132, 63, 0.55);
    padding-bottom: 1px;
    transition: color .2s ease, border-color .2s ease;
}
.src-matrix a:hover { color: var(--gold); border-color: var(--gold); }

@media (max-width: 768px) {
    .sec-title { font-size: 26px; }
    .kpi-strip { grid-template-columns: repeat(2, 1fr); }
    .kpi-item { border-bottom: 1px solid var(--border); }
    .kpi-item:nth-child(2n) { border-right: none; }
    .kpi-item:nth-last-child(-n + 2) { border-bottom: none; }
    .kpi-num { font-size: 34px; }
    .biz-grid { grid-template-columns: 1fr; }
    .biz-item { border-right: none !important; }
    .corp-archive th { width: 116px; font-size: 13px; padding: 12px; }
    .corp-archive th, .corp-archive td { padding: 12px; }
    .hero-subtitle { font-size: 15.5px; }
}