/* ============================================================
       ★ 全新配色 — 渐变蓝 #034798 → #0171B3 + 橙红 #F66A07
       ============================================================ */
:root {
    /* ★ 渐变蓝主色 */
    --color-primary-start: #034798;
    --color-primary-end: #0171B3;
    --color-primary-dark: #023A7A;
    --color-primary-light: #0588D0;
    --color-primary-lightest: #E8F4FC;

    /* ★ 橙红色系（不变） */
    --color-accent: #E8890C;
    --color-accent-light: #F66A07;
    --color-accent-dark: #CC5500;

    /* 中性色 */
    --color-white: #FFFFFF;
    --color-bg: #F5F8FF;
    --color-text: #0A2A4A;
    --color-text-mid: #4A5A7A;
    --color-text-light: #8A9AB0;
    --shadow-sm: 0 2px 8px rgba(3, 71, 152, 0.08);
    --shadow-md: 0 8px 24px rgba(3, 71, 152, 0.12);
    --shadow-lg: 0 20px 48px rgba(3, 71, 152, 0.18);
    --topbar-height: 52px;
    --header-height: 72px;
    --site-header-height: calc(var(--topbar-height) + var(--header-height));
    --site-header-offset: var(--site-header-height);
}

/* ============================================================
       重置 & 基础
       ============================================================ */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    background: #0a0a0a;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ============================================================
       按钮 — 橙红渐变
       ============================================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-white);
    padding: 12px 36px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        box-shadow 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(246, 106, 7, 0.35);
    white-space: nowrap;
    min-height: 48px;
    letter-spacing: 0.5px;
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(246, 106, 7, 0.45);
}

.btn-outline-blue {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--color-primary-start);
    padding: 10px 28px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.95rem;
    border: 2px solid var(--color-primary-start);
    transition: background 0.3s, color 0.3s, box-shadow 0.3s;
    cursor: pointer;
    min-height: 44px;
    white-space: nowrap;
}
.btn-outline-blue:hover {
    background: var(--color-primary-start);
    color: var(--color-white);
    box-shadow: 0 4px 14px rgba(3, 71, 152, 0.25);
}

.btn-outline-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--color-white);
    padding: 10px 28px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.9rem;
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: background 0.3s, border-color 0.3s;
    cursor: pointer;
    min-height: 44px;
    white-space: nowrap;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
}

/* ============================================================
       站点头部（公告栏 + 导航）
       ============================================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.28);
    overflow: hidden;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform: translateZ(0);
    transition: background 0.35s ease, box-shadow 0.35s ease, backdrop-filter 0.35s ease;
}

/* 有英雄区的页面：头部透明融入 banner + 黑色遮罩 */
body:has(.hero) .site-header,
body:has(.page-banner) .site-header {
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.58) 0%,
        rgba(0, 0, 0, 0.46) calc(var(--topbar-height) + 1px),
        rgba(0, 0, 0, 0.24) calc(var(--topbar-height) + var(--header-height) * 0.55),
        rgba(0, 0, 0, 0) calc(var(--topbar-height) + var(--header-height))
    );
    box-shadow: none;
}

body:has(.hero) .topbar,
body:has(.page-banner) .topbar,
body:has(.hero) .header,
body:has(.page-banner) .header {
    background: transparent;
}

body:has(.hero) .topbar::after,
body:has(.page-banner) .topbar::after {
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.14) 50%,
        transparent 100%
    );
}

body:has(.hero) .site-header.is-scrolled,
body:has(.page-banner) .site-header.is-scrolled {
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.32);
}

/* ============================================================
       顶部公告栏
       ============================================================ */
.topbar {
    position: relative;
    background: rgba(0, 0, 0, 0.32);
    color: var(--color-white);
    min-height: var(--topbar-height);
    display: flex;
    align-items: center;
}

.topbar::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.14) 50%,
        transparent 100%
    );
    pointer-events: none;
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
    height: var(--topbar-height);
    min-height: var(--topbar-height);
}

.topbar-main {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.topbar-tag {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    background: rgba(246, 106, 7, 0.2);
    color: var(--color-accent-light);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 4px;
    letter-spacing: 0.5px;
    border: 1px solid rgba(246, 106, 7, 0.25);
    line-height: 1;
}

.icon-notice {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
    stroke: currentColor;
}

.topbar-msg {
    margin: 0;
    font-size: 0.86rem;
    font-weight: 500;
    line-height: 1.4;
    color: rgba(255, 255, 255, 0.92);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.topbar-aside {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.topbar-phone {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--color-accent-light);
    white-space: nowrap;
    letter-spacing: 0.3px;
    transition: color 0.2s;
}
.topbar-phone:hover {
    color: var(--color-white);
}

.topbar-cta {
    background: rgba(246, 106, 7, 0.15);
    color: var(--color-accent-light);
    padding: 5px 16px;
    border-radius: 40px;
    font-size: 0.76rem;
    font-weight: 600;
    transition: background 0.3s, transform 0.2s;
    border: 1px solid rgba(246, 106, 7, 0.25);
    cursor: pointer;
    white-space: nowrap;
    line-height: 1.2;
}
.topbar-cta:hover {
    background: rgba(246, 106, 7, 0.3);
    transform: scale(1.03);
}

@keyframes pulse-icon {
    0%,
    100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
}

/* ============================================================
       导航栏 — ★ 渐变蓝 #034798 → #0171B3
       ============================================================ */
.header {
    position: relative;
    height: var(--header-height);
    background: transparent;
    display: flex;
    align-items: center;
    box-shadow: none;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-white);
    flex-shrink: 0;
}
.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    flex-shrink: 0;
}

.nav {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-left: auto;
}

.nav a {
    font-size: 0.92rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    transition: color 0.3s ease, background 0.3s ease, padding 0.3s ease;
    position: relative;
    white-space: nowrap;
    padding: 6px 4px;
    border-radius: 40px;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        left 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform: translateX(-50%);
}
.nav a:hover::after {
    width: 70%;
}
.nav a:hover {
    color: var(--color-white);
}

.nav a.active {
    color: var(--color-white);
    background: var(--color-accent);
    padding: 6px 18px;
    border-radius: 40px;
    box-shadow: 0 2px 12px rgba(246, 106, 7, 0.35);
}
.nav a.active::after {
    display: none;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px 4px;
    flex-shrink: 0;
    position: relative;
    z-index: 1002;
}
.menu-toggle span {
    display: block;
    width: 28px;
    height: 2.5px;
    background: var(--color-white);
    border-radius: 4px;
    transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.menu-toggle:hover span {
    background: var(--color-accent);
}

/* ============================================================
       Hero / Banner — ★ 渐变蓝 #034798 → #0171B3
       ============================================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(145deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
    position: relative;
    overflow: hidden;
    padding: 120px 0 100px;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/images/banner.jpg') center/cover no-repeat;
    opacity: 1;
    z-index: 0;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.35) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
    color: var(--color-white);
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    background: rgba(246, 106, 7, 0.15);
    border: 1px solid rgba(246, 106, 7, 0.3);
    padding: 6px 20px;
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-accent-light);
    letter-spacing: 1px;
    margin-bottom: 24px;
    text-transform: uppercase;
}

.hero-content h1 {
    font-size: clamp(2.6rem, 6vw, 4.2rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}
.hero-content h1 .highlight {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    color: rgba(255, 255, 255, 0.85);
    max-width: 640px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 48px;
    margin-top: 56px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.hero-stats .stat-item {
    display: flex;
    flex-direction: column;
}
.hero-stats .stat-number {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--color-accent-light);
    letter-spacing: -0.5px;
}
.hero-stats .stat-label {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================================
       通用标题 — 使用渐变蓝
       ============================================================ */
.section-title {
    text-align: center;
    margin-bottom: 48px;
}
.section-title h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 10px;
}
.section-title h2 .highlight {
    background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-title p {
    color: var(--color-text-mid);
    font-size: 1.05rem;
    max-width: 560px;
    margin: 0 auto;
}

/* ============================================================
       关于我们
       ============================================================ */
.about {
    padding: 80px 0;
    background: var(--color-white);
}
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: clamp(1.4rem, 2.5vw, 1.8rem);
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--color-text);
}
.about-text h3 .highlight {
    background: linear-gradient(135deg, var(--color-primary-start), var(--color-primary-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.about-text p {
    color: var(--color-text-mid);
    font-size: 1.02rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-text .highlight-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 20px;
    margin-top: 20px;
}
.about-text .highlight-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--color-text);
}
.about-text .highlight-list li::before {
    content: '✓';
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.2rem;
}

.about-image {
    background: linear-gradient(135deg, #E8F4FC, #D5E8F5);
    border-radius: 20px;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-mid);
    font-size: 1rem;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 400 300" width="400" height="300"><rect width="400" height="300" fill="%23E8F4FC"/><text x="200" y="150" font-family="Inter, sans-serif" font-size="18" fill="%234A5A7A" text-anchor="middle">关于禹鼎 · 企业实景</text></svg>');
    background-size: cover;
    background-position: center;
    box-shadow: var(--shadow-md);
}

/* ============================================================
       核心优势
       ============================================================ */
.advantages {
    padding: 80px 0;
    background: var(--color-bg);
}
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.advantage-card {
    background: var(--color-white);
    padding: 32px 24px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 4px solid transparent;
}
.advantage-card:nth-child(1) {
    border-top-color: var(--color-accent);
}
.advantage-card:nth-child(2) {
    border-top-color: var(--color-primary-start);
}
.advantage-card:nth-child(3) {
    border-top-color: var(--color-primary-end);
}
.advantage-card:nth-child(4) {
    border-top-color: var(--color-accent-dark);
}
.advantage-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
}

.advantage-card .icon {
    font-size: 2.4rem;
    margin-bottom: 14px;
    display: inline-block;
    padding: 12px;
    border-radius: 50%;
    background: rgba(3, 71, 152, 0.06);
}
.advantage-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--color-text);
}
.advantage-card p {
    font-size: 0.92rem;
    color: var(--color-text-mid);
    line-height: 1.6;
}

/* ============================================================
       产品系列
       ============================================================ */
.products {
    padding: 80px 0;
    background: var(--color-white);
}

.product-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.product-tab {
    background: var(--color-bg);
    border: 2px solid transparent;
    padding: 10px 28px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text-mid);
    cursor: pointer;
    transition: all 0.3s;
    user-select: none;
    white-space: nowrap;
}
.product-tab:hover {
    background: #D5E8F5;
    color: var(--color-text);
}
.product-tab.active {
    background: var(--color-primary-start);
    color: var(--color-white);
    border-color: var(--color-primary-start);
    box-shadow: 0 4px 14px rgba(3, 71, 152, 0.25);
}

.product-groups {
    position: relative;
}

.product-group {
    display: none;
    animation: fadeIn 0.4s ease;
}
.product-group.active {
    display: block;
}

.product-group .products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.product-card {
    background: var(--color-bg);
    border-radius: 20px;
    padding: 28px 24px 24px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s;
    border: 1px solid transparent;
}
.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(246, 106, 7, 0.2);
    background: var(--color-white);
}

.product-card .product-img {
    width: 100%;
    aspect-ratio: 1/1;
    border-radius: 16px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    color: var(--color-text-mid);
    background-size: cover;
    background-position: center;
}
.product-group:nth-child(1) .product-card .product-img {
    background: linear-gradient(135deg, #FDF5EE, #F5E8D7);
}
.product-group:nth-child(2) .product-card .product-img {
    background: linear-gradient(135deg, #E8F4FC, #D5E8F5);
}
.product-group:nth-child(3) .product-card .product-img {
    background: linear-gradient(135deg, #E8F4FC, #D5E8F5);
}

.product-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}
.product-card .product-sub {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 6px;
}
.product-card p {
    font-size: 0.9rem;
    color: var(--color-text-mid);
}

.product-more {
    text-align: center;
    margin-top: 40px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================================
       荣誉资质
       ============================================================ */
.certifications {
    padding: 80px 0;
    background: var(--color-bg);
}
.cert-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}
.cert-item {
    background: var(--color-white);
    padding: 12px 28px;
    border-radius: 60px;
    font-weight: 500;
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.04);
    font-size: 0.92rem;
    transition: all 0.3s;
}
.cert-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
    color: var(--color-accent-dark);
}

/* ============================================================
       新闻板块
       ============================================================ */
.news {
    padding: 80px 0;
    background: var(--color-white);
}

.news-list {
    width: 100%;
    max-width: none;
    margin: 0;
}

.news-item {
    display: flex;
    align-items: stretch;
    gap: 24px;
    padding: 20px 0;
    border-bottom: 1px solid rgba(3, 71, 152, 0.06);
    border-radius: 8px;
    cursor: default;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        background 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        box-shadow 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}
.news-item:hover {
    transform: translateX(8px);
    background: var(--color-bg);
    box-shadow: var(--shadow-sm);
    border-radius: 8px;
    border-bottom-color: transparent;
}
.news-item:last-child {
    border-bottom: none;
}

.news-date {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    padding: 4px 12px 4px 0;
    border-right: 2px solid var(--color-accent);
    text-align: center;
    line-height: 1.2;
}
.news-date .day {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.5px;
}
.news-date .month-year {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.news-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    min-width: 0;
}

.news-content .news-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
    transition: color 0.25s ease;
    line-height: 1.4;
}
.news-item:hover .news-title {
    color: var(--color-primary-start);
}

.news-content .news-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px 16px;
    font-size: 0.82rem;
    color: var(--color-text-light);
}
.news-content .news-meta .news-tag {
    background: var(--color-bg);
    padding: 2px 14px;
    border-radius: 40px;
    font-weight: 500;
    color: var(--color-text-mid);
    font-size: 0.75rem;
    transition: background 0.25s ease, color 0.25s ease;
}
.news-item:hover .news-tag {
    background: rgba(246, 106, 7, 0.12);
    color: var(--color-accent-dark);
}

.news-content .news-summary {
    font-size: 0.92rem;
    color: var(--color-text-mid);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-top: 2px;
}

.news-more {
    text-align: center;
    margin-top: 44px;
}

/* 首页推荐新闻：三列卡片 */
.home-news-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}

.home-news-card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.home-news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.1);
    border-color: rgba(246, 106, 7, 0.28);
}

.home-news-card__cover {
    display: block;
    line-height: 0;
    background: #E4E8EC;
    overflow: hidden;
}

.home-news-card__cover img {
    width: 100%;
    aspect-ratio: 16 / 10;
    height: auto;
    object-fit: cover;
    display: block;
    transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.home-news-card:hover .home-news-card__cover img {
    transform: scale(1.04);
}

.home-news-card__body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px 22px 22px;
    flex: 1;
}

.home-news-card__date {
    font-size: 0.8rem;
    color: var(--color-text-light);
    font-variant-numeric: tabular-nums;
}

.home-news-card__title {
    font-size: 1.08rem;
    font-weight: 650;
    line-height: 1.4;
    letter-spacing: -0.01em;
    margin: 0;
}

.home-news-card__title a {
    color: #0a0a0a;
    transition: color 0.2s ease;
}

.home-news-card:hover .home-news-card__title a {
    color: var(--color-accent-dark);
}

.home-news-card__summary {
    margin: 0;
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--color-text-mid);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.home-news-card__more {
    margin-top: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: #034798;
    width: fit-content;
    transition: color 0.2s ease, transform 0.2s ease;
}

.home-news-card__more:hover {
    color: var(--color-accent);
    transform: translateX(3px);
}

@media (max-width: 960px) {
    .home-news-grid {
        grid-template-columns: 1fr;
        max-width: 520px;
        margin: 0 auto;
    }
}

/* 新闻栏目列表：封面（自然宽高比）+ 摘要 + 分页（宽度跟随 .container） */
.news-list--covers {
    width: 100%;
    max-width: none;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.news-item--cover {
    display: grid;
    grid-template-columns: minmax(180px, 300px) minmax(0, 1fr);
    gap: 32px;
    align-items: start;
    padding: 28px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 0;
    cursor: default;
    transition: background 0.25s ease;
}

.news-item--cover:hover {
    transform: none;
    background: #fafafa;
    box-shadow: none;
    border-radius: 12px;
    border-bottom-color: transparent;
}

.news-item--cover:last-child {
    border-bottom: none;
}

.news-item--cover.news-item--no-cover {
    grid-template-columns: 1fr;
}

.news-item--cover.news-item--no-cover .news-cover {
    display: none;
}

.news-cover {
    display: block;
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    background: #ececec;
    line-height: 0;
}

.news-cover img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.news-cover--placeholder {
    background: #E4E8EC;
}

.news-cover--placeholder img {
    /* 占位 SVG 固定 16:10，避免布局跳动 */
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.news-item--cover:hover .news-cover img {
    transform: scale(1.03);
}

.news-item--cover .news-content {
    gap: 10px;
    padding-top: 2px;
}

.news-item--cover .news-title {
    font-size: clamp(1.1rem, 1.5vw, 1.28rem);
    font-weight: 650;
    line-height: 1.35;
    letter-spacing: -0.02em;
}

.news-item--cover:hover .news-title,
.news-item--cover:hover .news-title a {
    color: var(--color-accent-dark);
}

.news-item--cover .news-summary {
    -webkit-line-clamp: 3;
    margin-top: 0;
    font-size: 0.95rem;
    line-height: 1.7;
}

.news-item--cover .news-meta {
    gap: 10px 14px;
}

.news-item--cover .news-meta time {
    color: var(--color-text-light);
    font-size: 0.82rem;
    font-variant-numeric: tabular-nums;
}

.news-item--cover .news-tag {
    background: rgba(0, 0, 0, 0.05);
    color: var(--color-text-mid);
}

.news-item--cover:hover .news-tag {
    background: rgba(246, 106, 7, 0.12);
    color: var(--color-accent-dark);
}

.news-readmore {
    display: inline-flex;
    align-items: center;
    margin-top: 4px;
    font-size: 0.88rem;
    font-weight: 600;
    color: #0a0a0a;
    transition: color 0.2s ease, transform 0.2s ease;
    width: fit-content;
}

.news-readmore:hover {
    color: var(--color-accent);
    transform: translateX(3px);
}

@media (max-width: 720px) {
    .news-item--cover {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 22px 0;
    }

    .news-item--cover .news-cover {
        max-width: 100%;
    }

    .news-item--cover .news-cover img {
        max-height: none;
    }
}

/* ============================================================
       模态框
       ============================================================ */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* 与头部/英雄区黑调遮罩一致，替代旧蓝色半透明 */
    background: rgba(0, 0, 0, 0.68);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 20px;
    animation: fadeIn 0.25s ease;
}
.modal-overlay.active {
    display: flex;
}

.modal-box {
    background: var(--color-white);
    max-width: 740px;
    width: 100%;
    max-height: 90vh;
    border-radius: 24px;
    padding: 36px 40px 28px;
    position: relative;
    overflow-y: auto;
    box-shadow: 0 32px 72px rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.08);
    animation: slideUp 0.3s ease;
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 18px;
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    color: var(--color-text-light);
    transition: color 0.2s, transform 0.2s;
    padding: 4px 8px;
}
.modal-close:hover {
    color: var(--color-accent);
    transform: rotate(90deg);
}

.modal-box .statement-content {
    padding: 0;
}
.modal-box .statement-content .statement-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.modal-box .statement-content .statement-icon {
    font-size: 2rem;
    line-height: 1;
}
.modal-box .statement-content .statement-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0a0a0a;
    letter-spacing: 0.5px;
    margin: 0;
}
.modal-box .statement-content .statement-badge {
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 14px;
    border-radius: 40px;
    letter-spacing: 0.3px;
}
.modal-box .statement-content p {
    color: var(--color-text);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 12px;
}
.modal-box .statement-content p strong {
    color: #0a0a0a;
}
.modal-box .statement-content .demand-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 8px 0 16px;
}
.modal-box .statement-content .demand-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.96rem;
    color: var(--color-text);
}
.modal-box .statement-content .demand-list li::before {
    content: '▸';
    color: var(--color-accent);
    font-weight: 700;
    font-size: 1.1rem;
    line-height: 1.6;
}
.modal-box .statement-content .statement-official {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px 20px;
    background: #f6f6f6;
    border-radius: 14px;
    padding: 16px 20px;
    margin: 14px 0 16px;
    border: 1px solid rgba(0, 0, 0, 0.06);
}
.modal-box .statement-content .statement-official .official-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.92rem;
    color: var(--color-text);
    flex-wrap: wrap;
}
.modal-box .statement-content .statement-official .official-item .official-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}
.modal-box .statement-content .statement-official .official-item .official-label {
    font-weight: 600;
    white-space: nowrap;
}
.modal-box .statement-content .statement-official .official-item .official-value {
    color: var(--color-accent-dark);
    font-weight: 500;
    word-break: break-word;
}
.modal-box .statement-content .statement-official .official-item .official-value a {
    color: var(--color-accent-dark);
    transition: color 0.2s;
}
.modal-box .statement-content .statement-official .official-item .official-value a:hover {
    color: var(--color-accent);
    text-decoration: underline;
}
.modal-box .statement-content .statement-warning {
    background: rgba(246, 106, 7, 0.06);
    border-radius: 12px;
    padding: 12px 18px;
    color: var(--color-accent-dark);
    font-weight: 500;
    font-size: 0.96rem;
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px dashed rgba(246, 106, 7, 0.25);
}
.modal-box .statement-content .statement-warning .warning-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}
.modal-box .statement-content .statement-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 20px;
    padding-top: 14px;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
}
.modal-box .statement-content .statement-confirm {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(246, 106, 7, 0.1);
    color: var(--color-accent-dark);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 4px 18px;
    border-radius: 40px;
    border: 1px solid rgba(246, 106, 7, 0.15);
    user-select: none;
}

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ============================================================
       CTA — 深色衔接页脚，与头部色调一致
       ============================================================ */
.cta {
    padding: 70px 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.78) 0%, rgba(0, 0, 0, 0.90) 100%);
    color: var(--color-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(246, 106, 7, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}
.cta h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 10px;
    position: relative;
    z-index: 2;
}
.cta h2 .highlight {
    color: var(--color-accent-light);
}
.cta p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    max-width: 460px;
    margin: 0 auto 28px;
    position: relative;
    z-index: 2;
}

/* ============================================================
       页脚 — 深色，与 CTA / 头部自然衔接
       ============================================================ */
.footer {
    padding: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.90) 0%, #000000 100%);
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.88rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 48px;
    padding: 56px 0 40px;
    text-align: left;
}
.footer-brand p { margin-top: 14px; line-height: 1.7; font-size: 0.85rem; }
.footer-logo { height: 44px; width: auto; }
.footer-links, .footer-contact {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links h4, .footer-contact h4 {
    font-size: 0.92rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 6px;
}
.footer-links a {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.2s, padding-left 0.2s;
}
.footer-links a:hover { color: var(--color-accent-light); padding-left: 4px; }
.footer-contact p { font-size: 0.85rem; line-height: 1.6; }
.footer-bottom {
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    text-align: center;
}
.footer-bottom .divider { opacity: 0.3; margin: 0 8px; }
.footer a {
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.2s;
}
.footer a:hover { color: var(--color-accent-light); }

.float-contact {
    position: fixed;
    right: 24px;
    bottom: 32px;
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-white);
    padding: 12px 20px;
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 600;
    box-shadow: 0 6px 24px rgba(246, 106, 7, 0.4);
    transition: transform 0.3s, box-shadow 0.3s;
}
.float-contact svg { width: 18px; height: 18px; }
.float-contact:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 32px rgba(246, 106, 7, 0.5);
    color: var(--color-white);
}

.modal-box .statement-confirm {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.92rem;
    padding: 10px 48px;
    border-radius: 40px;
    border: none;
    cursor: pointer;
    min-height: 44px;
    box-shadow: 0 4px 14px rgba(246, 106, 7, 0.3);
}
.modal-box .statement-footer { display: flex; justify-content: center; margin-top: 20px; }

/* ============================================================
       内页通用
       ============================================================ */
.page-banner {
    background: #0a0a0a;
    color: var(--color-white);
    padding: 123px 0 127px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('/images/banner.jpg') center/cover no-repeat;
    z-index: 0;
}
.page-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.35) 100%);
    z-index: 1;
}
.page-banner .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}
.page-banner .breadcrumb {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 16px;
}
.page-banner .breadcrumb a { color: rgba(255, 255, 255, 0.75); }
.page-banner .breadcrumb a:hover { color: var(--color-accent-light); }
.page-banner .breadcrumb span { margin: 0 8px; opacity: 0.4; }
.page-banner .page-banner-en {
    display: inline-block;
    background: rgba(246, 106, 7, 0.15);
    border: 1px solid rgba(246, 106, 7, 0.3);
    padding: 6px 20px;
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-accent-light);
    letter-spacing: 1px;
    margin-bottom: 24px;
    text-transform: uppercase;
    opacity: 1;
}
.page-banner h1 {
    font-size: clamp(2.6rem, 6vw, 4.2rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}
.page-banner h1 .highlight {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.page-banner p {
    max-width: 640px;
    margin: 0 auto;
    color: rgba(255, 255, 255, 0.85);
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    line-height: 1.8;
}

.page-section {
    padding: 72px 0;
}
.page-section--alt { background: var(--color-bg); }

.section-title--left {
    text-align: left;
}
.section-title--left p {
    margin: 0;
    text-align: left;
}

.content-block { max-width: 880px; margin: 0 auto; }
.content-block p {
    color: var(--color-text-mid);
    font-size: 1.02rem;
    line-height: 1.9;
    margin-bottom: 16px;
}
.content-block p strong { color: var(--color-primary-start); }

.info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.info-card {
    background: var(--color-white);
    border: 1px solid rgba(3, 71, 152, 0.08);
    border-radius: 16px;
    padding: 28px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s;
}
.info-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.info-card-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 16px;
    border-radius: 12px;
    background: rgba(3, 71, 152, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}
.info-card h4 { font-size: 1.05rem; margin-bottom: 8px; color: var(--color-text); }
.info-card p { font-size: 0.9rem; color: var(--color-text-mid); line-height: 1.6; }
.info-card a { color: var(--color-accent-dark); font-weight: 600; }

.news-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 36px;
    flex-wrap: wrap;
}
.news-tab {
    background: var(--color-white);
    border: 2px solid rgba(3, 71, 152, 0.12);
    padding: 10px 32px;
    border-radius: 40px;
    font-weight: 600;
    color: var(--color-text-mid);
    cursor: pointer;
    transition: all 0.3s;
}
.news-tab.active, .news-tab:hover {
    background: var(--color-primary-start);
    border-color: var(--color-primary-start);
    color: var(--color-white);
}
.news-panel { display: none; }
.news-panel.active { display: block; animation: fadeIn 0.4s ease; }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}
.contact-info-list { display: flex; flex-direction: column; gap: 20px; }
.contact-info-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg);
    border-radius: 12px;
    border: 1px solid rgba(3, 71, 152, 0.06);
}
.contact-info-item .label {
    font-size: 0.78rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}
.contact-info-item .value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}
.contact-form {
    background: var(--color-white);
    border: 1px solid rgba(3, 71, 152, 0.08);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
}
.contact-form h3 { margin-bottom: 20px; font-size: 1.2rem; }
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--color-text);
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid rgba(3, 71, 152, 0.15);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary-start);
}
.form-group textarea { min-height: 120px; resize: vertical; }

.honor-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.honor-card {
    background: var(--color-white);
    border-radius: 16px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(3, 71, 152, 0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}
.honor-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.honor-card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(3, 71, 152, 0.08), rgba(246, 106, 7, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--color-accent);
}
.honor-card h4 { font-size: 1rem; color: var(--color-text); line-height: 1.5; }

.product-link {
    display: inline-flex;
    margin-top: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary-start);
}
.product-link:hover { color: var(--color-accent); }

/* ============================================================
       新闻详情页
       ============================================================ */
.news-detail {
    max-width: 880px;
    margin: 0 auto;
}

.news-detail-loading,
.news-detail-empty {
    text-align: center;
    padding: 48px 20px;
    color: var(--color-text-mid);
}

.news-detail-empty h2 {
    color: var(--color-text);
    margin-bottom: 12px;
}

.news-detail-empty p {
    margin-bottom: 24px;
}

.news-detail-header {
    padding-bottom: 24px;
    margin-bottom: 28px;
    border-bottom: 1px solid rgba(3, 71, 152, 0.08);
}

.news-detail-tag {
    display: inline-block;
    background: rgba(246, 106, 7, 0.12);
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 40px;
    margin-bottom: 14px;
    border: 1px solid rgba(246, 106, 7, 0.2);
}

.news-detail-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.35;
    margin-bottom: 16px;
}

.news-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    font-size: 0.88rem;
    color: var(--color-text-light);
}

.news-detail-body p {
    margin-bottom: 16px;
}

.news-detail-body p:last-child {
    margin-bottom: 0;
}

.news-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid rgba(3, 71, 152, 0.08);
}

.news-detail-flip {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid rgba(3, 71, 152, 0.08);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px 24px;
}

.news-detail-flip p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--color-text-mid);
}

.news-detail-flip a {
    color: var(--color-primary-start);
    font-weight: 600;
}

.news-detail-flip a:hover {
    color: var(--color-accent);
}

.news-content .news-title a {
    color: inherit;
    transition: color 0.25s ease;
}

.news-content .news-title a:hover {
    color: var(--color-primary-start);
}

.news-item--link {
    cursor: pointer;
}

.related-news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    width: 100%;
}

.related-news-card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: 16px;
    padding: 20px 18px;
    border: 1px solid rgba(3, 71, 152, 0.06);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    min-height: 100%;
}

.related-news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(246, 106, 7, 0.2);
}

.related-news-date {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-accent);
}

.related-news-date .day {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.related-news-date .month-year {
    font-size: 0.72rem;
    color: var(--color-text-light);
}

.related-news-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.45;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-news-card p {
    font-size: 0.84rem;
    color: var(--color-text-mid);
    line-height: 1.6;
    margin-bottom: 12px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-news-tag {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-accent);
    background: rgba(246, 106, 7, 0.1);
    padding: 3px 10px;
    border-radius: 40px;
    align-self: flex-start;
}

#relatedNewsMore.news-more {
    margin-top: 32px;
}

/* ============================================================
       产品详情页
       ============================================================ */
.page-banner--compact {
    padding: 111px 0 115px;
}

.page-banner--compact h1 {
    margin-bottom: 0;
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.product-detail-loading,
.product-detail-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 20px;
    color: var(--color-text-mid);
}

.product-detail-empty h2 {
    color: var(--color-text);
    margin-bottom: 12px;
}

.product-detail-empty p {
    margin-bottom: 24px;
}

.product-detail-gallery {
    position: sticky;
    top: calc(var(--site-header-height, 124px) + 24px);
}

.product-detail-main {
    position: relative;
    margin-bottom: 16px;
}

.product-detail-main-img {
    background: var(--color-bg);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(3, 71, 152, 0.08);
    box-shadow: var(--shadow-sm);
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-detail-main-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    background: #fff;
}

.product-detail-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: var(--color-primary-start);
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: background 0.2s, color 0.2s, transform 0.2s;
    z-index: 2;
}

.product-detail-arrow:hover {
    background: var(--color-primary-start);
    color: var(--color-white);
}

.product-detail-arrow--prev { left: 12px; }
.product-detail-arrow--next { right: 12px; }

.product-detail-thumbs {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.product-detail-thumb {
    width: 72px;
    height: 72px;
    padding: 0;
    border: 2px solid transparent;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    background: var(--color-bg);
    transition: border-color 0.2s, transform 0.2s;
}

.product-detail-thumb:hover {
    transform: translateY(-2px);
}

.product-detail-thumb.active {
    border-color: var(--color-accent);
}

.product-detail-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.product-detail-info {
    min-width: 0;
}

.product-detail-category {
    display: inline-block;
    background: rgba(246, 106, 7, 0.12);
    color: var(--color-accent);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 40px;
    margin-bottom: 14px;
    border: 1px solid rgba(246, 106, 7, 0.2);
}

.product-detail-name {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 6px;
    line-height: 1.2;
}

.product-detail-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.product-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
    font-size: 0.88rem;
    color: var(--color-text-light);
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(3, 71, 152, 0.08);
}

.product-detail-desc {
    margin-bottom: 28px;
}

.product-detail-block {
    margin-bottom: 28px;
}

.product-detail-block h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 14px;
}

.product-detail-specs {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(3, 71, 152, 0.06);
}

.product-detail-specs th,
.product-detail-specs td {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.92rem;
    border-bottom: 1px solid rgba(3, 71, 152, 0.06);
}

.product-detail-specs tr:last-child th,
.product-detail-specs tr:last-child td {
    border-bottom: none;
}

.product-detail-specs th {
    width: 38%;
    color: var(--color-text);
    font-weight: 600;
    background: rgba(3, 71, 152, 0.04);
}

.product-detail-specs td {
    color: var(--color-text-mid);
}

.product-detail-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}

.product-detail-back {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary-start);
    margin-left: 4px;
}

.product-detail-back:hover {
    color: var(--color-accent);
}

.product-detail-flip {
    grid-column: 1 / -1;
    margin-top: 8px;
    padding-top: 28px;
    border-top: 1px solid rgba(3, 71, 152, 0.08);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px 24px;
}

.product-detail-flip p {
    margin: 0;
    font-size: 0.92rem;
    color: var(--color-text-mid);
}

.product-detail-flip a {
    color: var(--color-primary-start);
    font-weight: 600;
}

.product-detail-flip a:hover {
    color: var(--color-accent);
}

.product-img--detail {
    background: linear-gradient(135deg, #E8F4FC, #D5E8F5);
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    width: 100%;
}

#relatedMore.product-more {
    margin-top: 32px;
}

@media (min-width: 769px) {
    main {
        padding-top: var(--site-header-height);
    }

    .hero {
        margin-top: calc(-1 * var(--site-header-height));
        padding-top: calc(120px + var(--site-header-height));
    }

    .page-banner {
        margin-top: calc(-1 * var(--site-header-height));
        padding-top: calc(123px + var(--site-header-height));
    }

    .page-banner--compact {
        padding-top: calc(111px + var(--site-header-height));
    }

    .related-products-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: none;
        margin: 0;
    }

    .related-news-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: none;
        margin: 0;
    }
}

@media (max-width: 992px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .info-cards { grid-template-columns: 1fr; max-width: 400px; margin-left: auto; margin-right: auto; }
    .contact-grid { grid-template-columns: 1fr; }
    .honor-showcase { grid-template-columns: repeat(2, 1fr); }
    .nav { gap: 12px; }
    .nav a { font-size: 0.88rem; padding: 6px 8px; }
    .nav a.active { padding: 6px 14px; }
    .topbar-msg { font-size: 0.8rem; }

    .product-detail {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .product-detail-gallery {
        position: static;
    }

    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .related-news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --topbar-height: 44px;
        --header-height: 58px;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 1000;
    }

    .header {
        background: transparent;
    }

    body:has(.hero) .topbar,
    body:has(.page-banner) .topbar,
    body:has(.hero) .header,
    body:has(.page-banner) .header {
        background: transparent;
    }

    .topbar-inner {
        gap: 10px;
        padding-top: 6px;
        padding-bottom: 6px;
    }

    .topbar-main {
        gap: 8px;
    }

    .topbar-tag {
        font-size: 0.65rem;
        padding: 3px 8px;
        gap: 4px;
    }

    .icon-notice {
        width: 11px;
        height: 11px;
    }

    .topbar-msg {
        font-size: 0.72rem;
        white-space: nowrap;
    }

    .topbar-aside {
        gap: 8px;
    }

    .topbar-phone {
        font-size: 0.75rem;
    }

    .topbar-cta {
        font-size: 0.68rem;
        padding: 4px 10px;
    }

    .header {
        height: var(--header-height);
    }

    .logo-img {
        height: 34px;
    }

    .logo {
        font-size: 1rem;
    }

    .nav {
        display: none;
        position: fixed;
        top: var(--site-header-offset, 98px);
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1002;
        background: rgba(0, 0, 0, 0.94);
        padding: 20px;
        flex-direction: column;
        justify-content: flex-start;
        gap: 6px;
        margin-left: 0;
        overflow-y: auto;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    .nav.open {
        display: flex;
        animation: navSlideDown 0.3s ease;
    }

    @keyframes navSlideDown {
        from { opacity: 0; transform: translateY(-10px); }
        to { opacity: 1; transform: translateY(0); }
    }

    .nav a {
        padding: 12px 16px;
        width: 100%;
        text-align: center;
        border-radius: 40px;
        font-size: 0.95rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .nav a::after {
        display: none;
    }
    .nav a:hover {
        background: rgba(246, 106, 7, 0.1);
        color: var(--color-white);
    }
    .nav a.active {
        padding: 12px 16px;
        background: var(--color-accent);
        color: var(--color-white);
    }

    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
    }
    .menu-toggle.active span:nth-child(1) {
        transform: translateY(7.5px) rotate(45deg);
    }
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-7.5px) rotate(-45deg);
    }
    .menu-toggle span {
        transition: transform 0.3s ease, opacity 0.3s ease;
    }

    .footer-grid { grid-template-columns: 1fr; text-align: center; gap: 28px; padding: 40px 0 32px; }
    .footer-links, .footer-contact { align-items: center; }
    .honor-showcase { grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
    .float-contact span { display: none; }
    .float-contact { padding: 14px; border-radius: 50%; right: 16px; bottom: 20px; }
    .page-banner { padding: 111px 0 115px; }
    .page-banner--compact { padding: 111px 0 115px; }
    .page-section { padding: 48px 0; }
}

/* ============================================================
       响应式
       ============================================================ */
@media (max-width: 1100px) {
    .nav { gap: 16px; }
    .nav a { font-size: 0.88rem; }
}

@media (max-width: 992px) {
    .hero-stats {
        gap: 32px;
    }
    .hero-stats .stat-number {
        font-size: 1.8rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 36px;
        text-align: center;
    }
    .about-text .highlight-list {
        justify-items: center;
    }
    .about-text .highlight-list li {
        justify-content: center;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .product-group .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .modal-box {
        padding: 28px 24px 20px;
    }

    .news-item {
        gap: 16px;
        padding: 16px 0;
    }
    .news-date {
        min-width: 56px;
        padding-right: 10px;
    }
    .news-date .day {
        font-size: 1.3rem;
    }
    .news-content .news-title {
        font-size: 0.98rem;
    }
    .news-item:hover {
        transform: translateX(6px);
    }
}

/* ============================================================
       手机端 (≤768px) — 内容区
       ============================================================ */
@media (max-width: 768px) {
    body {
        padding-top: 0;
    }

    .hero {
        min-height: 90vh;
        margin-top: calc(-1 * var(--site-header-height));
        padding: calc(80px + var(--site-header-height)) 0 60px;
    }

    body:has(.hero) .nav.open,
    body:has(.page-banner) .nav.open {
        background: rgba(0, 0, 0, 0.96);
        border-top-color: rgba(255, 255, 255, 0.1);
    }

    .page-banner {
        margin-top: calc(-1 * var(--site-header-height));
        padding-top: calc(111px + var(--site-header-height));
    }

    .page-banner--compact {
        padding-top: calc(111px + var(--site-header-height));
    }
    .hero-content h1,
    .page-banner h1 {
        font-size: 2rem;
    }
    .hero-content p,
    .page-banner p {
        font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    }
    .hero-stats {
        gap: 24px;
        margin-top: 36px;
        padding-top: 28px;
    }
    .hero-stats .stat-number {
        font-size: 1.4rem;
    }

    .section-title h2 {
        font-size: 1.6rem;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }

    .product-group .products-grid {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin: 0 auto;
    }

    .product-detail-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .product-detail-actions .btn-primary,
    .product-detail-actions .btn-outline-blue {
        width: 100%;
    }

    .product-detail-back {
        text-align: center;
        margin-left: 0;
    }

    .product-detail-flip {
        flex-direction: column;
    }

    .product-detail-thumb {
        width: 60px;
        height: 60px;
    }

    .related-products-grid {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin: 0 auto;
    }

    .related-news-grid {
        grid-template-columns: 1fr;
        max-width: 360px;
        margin: 0 auto;
    }

    .news-detail-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .news-detail-actions .btn-primary,
    .news-detail-actions .btn-outline-blue {
        width: 100%;
    }

    .news-detail-flip {
        flex-direction: column;
    }

    .about-text .highlight-list {
        grid-template-columns: 1fr;
    }

    .product-tabs {
        gap: 8px;
    }
    .product-tab {
        padding: 8px 20px;
        font-size: 0.9rem;
    }

    .cta {
        padding: 50px 0;
    }
    .cta h2 {
        font-size: 1.5rem;
    }

    .modal-box {
        padding: 24px 16px 16px;
        max-height: 85vh;
    }
    .modal-box .statement-content .statement-header h2 {
        font-size: 1.2rem;
    }
    .modal-close {
        font-size: 1.6rem;
        top: 10px;
        right: 12px;
    }

    .cert-item {
        padding: 10px 20px;
        font-size: 0.82rem;
    }

    .news-item {
        flex-direction: column;
        gap: 8px;
        padding: 16px 0;
    }
    .news-item:hover {
        transform: translateX(4px);
        padding-left: 0;
        padding-right: 0;
        margin-left: 0;
        margin-right: 0;
    }
    .news-date {
        flex-direction: row;
        border-right: none;
        border-bottom: 2px solid var(--color-accent);
        padding: 0 0 6px 0;
        min-width: unset;
        justify-content: flex-start;
        gap: 10px;
        width: 100%;
    }
    .news-date .day {
        font-size: 1.1rem;
    }
    .news-date .month-year {
        font-size: 0.7rem;
    }
    .news-content .news-summary {
        -webkit-line-clamp: 2;
        font-size: 0.85rem;
    }
    .news-content .news-title {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    :root {
        --topbar-height: 42px;
    }

    .container {
        padding: 0 14px;
    }

    .topbar-msg {
        font-size: 0.68rem;
    }

    .topbar-phone {
        display: none;
    }

    .topbar-cta {
        font-size: 0.65rem;
        padding: 4px 10px;
    }

    .hero-content h1,
    .page-banner h1 {
        font-size: 1.6rem;
    }
    .hero-content p,
    .page-banner p {
        font-size: 0.92rem;
    }
    .hero-stats .stat-number {
        font-size: 1.2rem;
    }
    .hero-stats .stat-label {
        font-size: 0.75rem;
    }

    .btn-primary {
        padding: 10px 24px;
        font-size: 0.85rem;
        min-height: 42px;
    }

    .product-tab {
        padding: 6px 16px;
        font-size: 0.8rem;
    }

    .modal-box {
        padding: 20px 12px 14px;
    }
    .modal-box .statement-content .statement-header h2 {
        font-size: 1.1rem;
    }
    .modal-box .statement-content .statement-badge {
        font-size: 0.6rem;
        padding: 2px 10px;
    }

    .news-item {
        padding: 14px 0;
    }
    .news-content .news-title {
        font-size: 0.9rem;
    }
    .news-content .news-summary {
        font-size: 0.82rem;
        -webkit-line-clamp: 2;
    }
    .news-date .day {
        font-size: 1rem;
    }
    .news-date .month-year {
        font-size: 0.65rem;
    }
    .news-item:hover {
        transform: translateX(2px);
    }

    .nav {
        padding: 12px 16px 20px;
        gap: 2px;
    }
    .nav a {
        padding: 8px 14px;
        font-size: 0.88rem;
        min-height: 38px;
    }
    .nav a.active {
        padding: 8px 14px;
    }
}

/* ============================================================
       分页（新闻列表）
       ============================================================ */
.news-pager {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
}
.news-pager__btn,
.news-pager__page {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 8px 16px;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 600;
    color: #0a0a0a;
    border: 2px solid rgba(0, 0, 0, 0.12);
    background: var(--color-white);
    transition: all 0.25s;
}
.news-pager__btn:hover:not(.is-disabled),
.news-pager__page:hover:not(.is-active) {
    border-color: var(--color-accent);
    background: rgba(246, 106, 7, 0.06);
    color: var(--color-accent-dark);
}
.news-pager__page.is-active {
    background: #0a0a0a;
    border-color: #0a0a0a;
    color: var(--color-white);
}
.news-pager__btn.is-disabled {
    opacity: 0.45;
    pointer-events: none;
}
.news-pager__pages {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.news-pager__ellipsis {
    color: var(--color-text-light);
    padding: 0 4px;
}
.news-list-empty {
    text-align: center;
    padding: 48px 20px;
    color: var(--color-text-mid);
}
.alert-banner {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.92rem;
}
.alert-banner--ok {
    background: rgba(3, 71, 152, 0.08);
    color: var(--color-primary-start);
    border: 1px solid rgba(3, 71, 152, 0.15);
}
.alert-banner--err {
    background: rgba(246, 106, 7, 0.08);
    color: var(--color-accent-dark);
    border: 1px solid rgba(246, 106, 7, 0.2);
}