/* ====================================================================
   湖北骓慕医药科技 - 样式表
   主题：浅色科研风 · 高级感 · 玻璃拟态 · 细节动效
   ==================================================================== */

/* ========== 基础变量 ========== */
:root {
    /* 主色调 */
    --color-primary: #0a4d8c;
    --color-primary-deep: #063a6e;
    --color-primary-light: #1e6cb8;
    --color-accent: #00b8d4;
    --color-accent-light: #5fd5e6;
    --color-cyan-glow: rgba(0, 184, 212, 0.4);

    /* 中性色 */
    --color-bg: #f7f9fc;
    --color-bg-soft: #eef2f7;
    --color-surface: #ffffff;
    --color-border: #e3e8ef;
    --color-border-soft: #eef1f6;
    --color-text: #1a2233;
    --color-text-mid: #4a5568;
    --color-text-soft: #7a8699;
    --color-text-faint: #a8b2c1;

    /* 阴影 */
    --shadow-xs: 0 1px 2px rgba(10, 77, 140, 0.04);
    --shadow-sm: 0 2px 8px rgba(10, 77, 140, 0.06);
    --shadow-md: 0 8px 24px rgba(10, 77, 140, 0.08);
    --shadow-lg: 0 16px 48px rgba(10, 77, 140, 0.12);
    --shadow-xl: 0 24px 64px rgba(10, 77, 140, 0.16);

    /* 渐变 */
    --grad-primary: linear-gradient(135deg, #0a4d8c 0%, #1e6cb8 50%, #00b8d4 100%);
    --grad-soft: linear-gradient(180deg, #ffffff 0%, #f7f9fc 100%);
    --grad-glow: radial-gradient(circle at 30% 30%, rgba(0, 184, 212, 0.15), transparent 60%);

    /* 字体 */
    --font-sans: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", "STSong", serif;
    --font-mono: "SF Mono", "JetBrains Mono", Consolas, "Courier New", monospace;

    /* 间距 */
    --container: 1280px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* 动画 */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    overflow-x: hidden;
}

body.modal-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s var(--ease);
}

button {
    border: none;
    background: none;
    font: inherit;
    color: inherit;
    cursor: pointer;
}

input {
    border: none;
    outline: none;
    background: none;
    font: inherit;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

ul, ol {
    list-style: none;
}

/* ========== 通用容器 ========== */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

.section-head {
    text-align: center;
    margin-bottom: 60px;
}

.section-eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    text-transform: uppercase;
    margin-bottom: 16px;
    padding: 6px 14px;
    background: rgba(0, 184, 212, 0.08);
    border: 1px solid rgba(0, 184, 212, 0.2);
    border-radius: 100px;
}

.section-title-cn {
    font-family: var(--font-serif);
    font-size: 38px;
    font-weight: 700;
    color: var(--color-primary-deep);
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    position: relative;
    display: inline-block;
}

.section-title-cn::before,
.section-title-cn::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 28px;
    height: 2px;
    background: var(--grad-primary);
    transform: translateY(-50%);
    border-radius: 2px;
}

.section-title-cn::before { left: -44px; }
.section-title-cn::after { right: -44px; }

.section-title-en {
    font-size: 14px;
    color: var(--color-text-soft);
    font-weight: 400;
    letter-spacing: 0.1em;
}

/* ========== 顶部导航 ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s var(--ease);
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.nav-wrap {
    max-width: var(--container);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}

.brand-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 10px;
    transition: transform 0.3s var(--ease-bounce);
}

.brand:hover .brand-logo {
    transform: rotate(-8deg) scale(1.05);
}

.brand-text {
    line-height: 1.1;
}

.brand-name-cn {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.brand-name-en {
    font-size: 11px;
    color: var(--color-text-soft);
    letter-spacing: 0.2em;
    margin-top: 2px;
    font-weight: 500;
}

.nav-main {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-main a {
    position: relative;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-mid);
    border-radius: 8px;
    transition: all 0.25s var(--ease);
}

.nav-main a:hover {
    color: var(--color-primary);
    background: rgba(10, 77, 140, 0.04);
}

.nav-main a.active {
    color: var(--color-primary);
    background: rgba(10, 77, 140, 0.06);
}

.nav-main a.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 2px;
    background: var(--grad-primary);
    border-radius: 2px;
}

.nav-tools {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-search-btn,
.nav-mobile-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 8px;
    color: var(--color-text-mid);
    transition: all 0.2s var(--ease);
}

.nav-search-btn:hover,
.nav-mobile-btn:hover {
    background: rgba(10, 77, 140, 0.08);
    color: var(--color-primary);
}

.nav-mobile-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
}

.nav-mobile-btn span {
    width: 20px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: all 0.2s;
}

.mobile-menu {
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px;
    display: none;
    z-index: 99;
    box-shadow: var(--shadow-md);
}

.mobile-menu.open { display: block; }

.mobile-menu a {
    display: block;
    padding: 14px 0;
    font-size: 15px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-soft);
}

.mobile-menu a:last-child { border-bottom: 0; }

/* ========== Hero ========== */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 140px 0 80px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background:
        linear-gradient(180deg, #f7f9fc 0%, #eaf0f7 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-canvas {
    width: 100%;
    height: 100%;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(10, 77, 140, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(10, 77, 140, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 184, 212, 0.1);
    border: 1px solid rgba(0, 184, 212, 0.3);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.15em;
    margin-bottom: 24px;
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--color-cyan-glow);
    animation: pulse 2s var(--ease) infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px var(--color-cyan-glow); }
    50% { box-shadow: 0 0 0 8px transparent; }
}

.hero-title {
    margin: 0 0 24px;
}

.hero-title-cn {
    display: block;
    font-family: var(--font-serif);
    font-size: 56px;
    font-weight: 700;
    color: var(--color-primary-deep);
    letter-spacing: 0.06em;
    line-height: 1.15;
    margin-bottom: 16px;
    animation: fadeUp 0.8s var(--ease) both;
}

.hero-title-en {
    display: block;
    font-size: 20px;
    font-weight: 400;
    color: var(--color-text-soft);
    letter-spacing: 0.15em;
    animation: fadeUp 0.8s var(--ease) 0.15s both;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--color-text-mid);
    line-height: 1.8;
    margin-bottom: 48px;
    animation: fadeUp 0.8s var(--ease) 0.3s both;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hero Search */
.hero-search {
    max-width: 720px;
    margin: 0 auto 60px;
    animation: fadeUp 0.8s var(--ease) 0.45s both;
}

.hero-search-box {
    display: flex;
    align-items: center;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    padding: 6px 6px 6px 24px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s var(--ease);
}

.hero-search-box:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(0, 184, 212, 0.15), var(--shadow-md);
}

.hero-search-box .search-icon {
    color: var(--color-text-soft);
    flex-shrink: 0;
}

.hero-search-box input {
    flex: 1;
    padding: 12px 16px;
    font-size: 15px;
    color: var(--color-text);
}

.hero-search-box input::placeholder {
    color: var(--color-text-faint);
}

.hero-search-btn {
    padding: 12px 28px;
    background: var(--grad-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 100px;
    transition: all 0.25s var(--ease);
    letter-spacing: 0.05em;
}

.hero-search-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(10, 77, 140, 0.3);
}

.hero-search-tips {
    margin-top: 16px;
    font-size: 13px;
    color: var(--color-text-soft);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.hero-search-tips a {
    padding: 4px 12px;
    background: rgba(10, 77, 140, 0.06);
    border-radius: 100px;
    transition: all 0.2s;
    color: var(--color-primary);
}

.hero-search-tips a:hover {
    background: var(--color-accent);
    color: #fff;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    animation: fadeUp 0.8s var(--ease) 0.6s both;
}

.stat-item {
    text-align: center;
}

.stat-num {
    font-size: 38px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    font-feature-settings: "tnum";
}

.stat-label {
    font-size: 12px;
    color: var(--color-text-soft);
    margin-top: 6px;
    letter-spacing: 0.1em;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--color-border);
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero-scroll span {
    display: block;
    width: 24px;
    height: 38px;
    border: 2px solid var(--color-text-faint);
    border-radius: 14px;
    position: relative;
}

.hero-scroll span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 2px;
    animation: scrollAnim 1.6s var(--ease) infinite;
}

@keyframes scrollAnim {
    0% { opacity: 1; transform: translate(-50%, 0); }
    100% { opacity: 0; transform: translate(-50%, 12px); }
}

/* ========== 关于我们 ========== */
.about {
    background: #fff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 80px;
    align-items: start;
}

.about-text .lead {
    font-size: 17px;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: 24px;
}

.about-text .lead strong,
.about-text p strong {
    color: var(--color-primary);
    font-weight: 600;
}

.about-text > p {
    color: var(--color-text-mid);
    line-height: 1.9;
    margin-bottom: 40px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.af-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-soft);
    transition: all 0.3s var(--ease);
}

.af-item:hover {
    background: #fff;
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.af-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--grad-primary);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    border-radius: 8px;
}

.af-text h4 {
    font-size: 15px;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.af-text p {
    font-size: 13px;
    color: var(--color-text-soft);
    line-height: 1.6;
}

/* About Visual */
.about-visual {
    position: relative;
    min-height: 460px;
}

.about-card-stack {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 460px;
}

.about-floating-card {
    position: absolute;
    padding: 16px 22px;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-soft);
    transition: all 0.4s var(--ease-bounce);
    animation: float 6s ease-in-out infinite;
}

.about-floating-card:hover {
    transform: translateY(-6px) scale(1.04);
    box-shadow: var(--shadow-lg);
}

.about-floating-card.c1 { top: 20px; left: 0; animation-delay: 0s; }
.about-floating-card.c2 { top: 110px; right: 10px; animation-delay: 1.2s; }
.about-floating-card.c3 { top: 200px; left: 30px; animation-delay: 2.4s; }
.about-floating-card.c4 { top: 290px; right: 0; animation-delay: 3.6s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.c-label {
    font-size: 12px;
    color: var(--color-text-soft);
    margin-bottom: 4px;
}

.c-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.about-mol {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 180px;
    height: 180px;
    opacity: 0.6;
}

.mol-svg {
    width: 100%;
    height: 100%;
    animation: rotateSlow 20s linear infinite;
}

@keyframes rotateSlow {
    from { transform: rotate(0); }
    to { transform: rotate(360deg); }
}

/* ========== 产品中心 ========== */
.products {
    background: var(--color-bg);
    position: relative;
}

.products::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, rgba(10, 77, 140, 0.02), transparent);
    pointer-events: none;
}

.product-search-bar {
    display: flex;
    align-items: center;
    gap: 16px;
    background: #fff;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    margin-bottom: 24px;
}

.psb-input {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 0;
}

.psb-input svg {
    color: var(--color-text-soft);
    flex-shrink: 0;
}

.psb-input input {
    flex: 1;
    font-size: 14px;
}

.psb-clear {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-bg-soft);
    color: var(--color-text-soft);
    font-size: 16px;
    line-height: 1;
    display: none;
    align-items: center;
    justify-content: center;
}

.psb-clear:hover {
    background: var(--color-primary);
    color: #fff;
}

.psb-input input:not(:placeholder-shown) ~ .psb-clear {
    display: flex;
}

.psb-meta {
    font-size: 13px;
    color: var(--color-text-soft);
    padding-left: 16px;
    border-left: 1px solid var(--color-border);
    white-space: nowrap;
}

.psb-meta strong {
    color: var(--color-primary);
    font-size: 16px;
    margin: 0 2px;
    font-feature-settings: "tnum";
}

.category-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
    max-height: 200px;
    overflow-y: auto;
    padding-bottom: 8px;
}

.category-chips::-webkit-scrollbar { width: 6px; height: 6px; }
.category-chips::-webkit-scrollbar-track { background: transparent; }
.category-chips::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 13px;
    color: var(--color-text-mid);
    transition: all 0.2s var(--ease);
    white-space: nowrap;
}

.chip em {
    font-style: normal;
    font-size: 11px;
    color: var(--color-text-faint);
    background: var(--color-bg-soft);
    padding: 1px 6px;
    border-radius: 10px;
}

.chip:hover {
    border-color: var(--color-accent);
    color: var(--color-primary);
}

.chip.active {
    background: var(--grad-primary);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 12px rgba(10, 77, 140, 0.3);
}

.chip.active em {
    background: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.prod-card {
    background: #fff;
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-md);
    padding: 0;
    cursor: pointer;
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

.prod-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--grad-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s var(--ease);
}

.prod-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.prod-card:hover::before {
    transform: scaleX(1);
}

/* 卡片分子缩略图 */
.prod-card-mol {
    width: 100%;
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f4fd 50%, #f0f7ff 100%);
    border-bottom: 1px solid var(--color-border-soft);
    overflow: hidden;
    transition: background 0.3s;
}

.prod-card-mol .mol-svg {
    width: 120px;
    height: 120px;
    transition: transform 0.4s var(--ease-bounce);
}

.mol-placeholder {
    font-size: 12px;
    color: var(--color-text-faint);
    text-align: center;
    line-height: 1.6;
}

.mol-placeholder-lg {
    font-size: 14px;
    color: var(--color-text-faint);
    text-align: center;
    line-height: 1.8;
    padding: 40px;
}

.prod-card:hover .prod-card-mol {
    background: linear-gradient(135deg, #e8f4fd 0%, #d4ecfa 50%, #e8f4fd 100%);
}

.prod-card:hover .prod-card-mol .mol-svg {
    transform: scale(1.12);
}

.prod-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding: 14px 18px 10px;
    border-bottom: 1px dashed var(--color-border);
}

.prod-cas {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(10, 77, 140, 0.06);
    padding: 3px 8px;
    border-radius: 4px;
}

.prod-cat {
    font-size: 11px;
    color: var(--color-accent);
    background: rgba(0, 184, 212, 0.1);
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid rgba(0, 184, 212, 0.2);
}

.prod-body {
    flex: 1;
    margin-bottom: 12px;
    padding: 0 18px;
}

.prod-name-en {
    font-size: 13px;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 6px;
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.prod-name-zh {
    font-size: 12px;
    color: var(--color-text-soft);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.prod-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 18px;
    border-top: 1px solid var(--color-border-soft);
}

.prod-purity {
    font-size: 12px;
    color: var(--color-text-soft);
}

.prod-purity strong {
    color: var(--color-primary);
    font-weight: 600;
}

.prod-view {
    font-size: 12px;
    color: var(--color-accent);
    font-weight: 500;
    transition: transform 0.2s;
}

.prod-card:hover .prod-view {
    transform: translateX(3px);
}

.empty-state {
    grid-column: 1 / -1;
    padding: 80px 20px;
    text-align: center;
}

.empty-icon {
    font-size: 48px;
    color: var(--color-text-faint);
    margin-bottom: 12px;
}

.empty-text {
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: 6px;
}

.empty-tip {
    font-size: 13px;
    color: var(--color-text-soft);
}

.product-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.pp-btn {
    padding: 10px 24px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--color-text);
    font-size: 14px;
    transition: all 0.2s var(--ease);
}

.pp-btn:hover:not(:disabled) {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.pp-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pp-info {
    font-size: 14px;
    color: var(--color-text-soft);
}

.pp-info span {
    color: var(--color-primary);
    font-weight: 600;
    font-feature-settings: "tnum";
    margin: 0 2px;
}

/* ========== 核心能力 ========== */
.capabilities {
    background: linear-gradient(180deg, var(--color-bg) 0%, #eef2f7 100%);
}

.cap-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.cap-card {
    background: #fff;
    padding: 32px 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-soft);
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
}

.cap-card::before {
    content: '';
    position: absolute;
    top: -40px;
    right: -40px;
    width: 120px;
    height: 120px;
    background: var(--grad-glow);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.4s;
}

.cap-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.cap-card:hover::before {
    opacity: 1;
}

.cap-num {
    font-size: 36px;
    font-weight: 800;
    color: var(--color-text-faint);
    font-family: var(--font-mono);
    margin-bottom: 16px;
    line-height: 1;
}

.cap-card:hover .cap-num {
    color: var(--color-accent);
}

.cap-card h3 {
    font-size: 18px;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.cap-card > p {
    font-size: 13px;
    color: var(--color-text-mid);
    line-height: 1.7;
    margin-bottom: 16px;
}

.cap-card ul {
    border-top: 1px dashed var(--color-border);
    padding-top: 14px;
}

.cap-card ul li {
    font-size: 12px;
    color: var(--color-text-soft);
    padding: 4px 0;
    position: relative;
    padding-left: 14px;
}

.cap-card ul li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

/* ========== 新闻动态 ========== */
.news {
    background: #fff;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    padding: 32px 28px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-soft);
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
}

.news-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--grad-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

.news-card:hover {
    background: #fff;
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.news-card:hover::after {
    transform: scaleX(1);
}

.news-tag {
    display: inline-block;
    font-size: 11px;
    color: var(--color-accent);
    background: rgba(0, 184, 212, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 16px;
    letter-spacing: 0.05em;
}

.news-card h3 {
    font-size: 18px;
    color: var(--color-primary);
    margin-bottom: 12px;
    line-height: 1.5;
    font-weight: 600;
}

.news-card p {
    font-size: 13px;
    color: var(--color-text-mid);
    line-height: 1.7;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-date {
    font-size: 12px;
    color: var(--color-text-soft);
    font-family: var(--font-mono);
    padding-top: 12px;
    border-top: 1px dashed var(--color-border);
}

/* ========== 联系我们 ========== */
.contact {
    background: var(--color-bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: stretch;
}

.contact-info {
    background: #fff;
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-soft);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ci-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border-soft);
}

.ci-item:last-of-type { border-bottom: 0; }

.ci-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 77, 140, 0.06);
    color: var(--color-primary);
    border-radius: 10px;
}

.ci-text { flex: 1; }

.ci-label {
    font-size: 12px;
    color: var(--color-text-soft);
    margin-bottom: 4px;
    letter-spacing: 0.05em;
}

.ci-value {
    font-size: 15px;
    color: var(--color-text);
    font-weight: 500;
    line-height: 1.6;
}

.ci-value a {
    color: var(--color-primary);
    font-weight: 600;
}

.ci-value a:hover {
    color: var(--color-accent);
}

.ci-cta {
    margin-top: 12px;
    align-self: flex-start;
}

.contact-cta {
    position: relative;
    background: linear-gradient(135deg, #0a4d8c 0%, #1e6cb8 60%, #00b8d4 100%);
    padding: 50px 40px;
    border-radius: var(--radius-lg);
    color: #fff;
    overflow: hidden;
    display: flex;
    align-items: center;
}

.cta-decoration {
    position: absolute;
    right: -60px;
    top: 50%;
    transform: translateY(-50%);
    width: 360px;
    height: 360px;
    opacity: 0.5;
}

.cta-svg { width: 100%; height: 100%; }

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 60%;
}

.cta-eyebrow {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3em;
    opacity: 0.8;
    margin-bottom: 16px;
}

.cta-content h3 {
    font-size: 30px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.cta-content p {
    font-size: 14px;
    line-height: 1.8;
    opacity: 0.85;
    margin-bottom: 24px;
}

.cta-list li {
    font-size: 13px;
    padding: 4px 0;
    opacity: 0.85;
}

/* ========== 按钮 ========== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--grad-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    border-radius: 100px;
    letter-spacing: 0.05em;
    transition: all 0.25s var(--ease);
    box-shadow: 0 4px 12px rgba(10, 77, 140, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(10, 77, 140, 0.35);
}

.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: transparent;
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 500;
    border-radius: 100px;
    border: 1px solid var(--color-primary);
    transition: all 0.25s var(--ease);
}

.btn-ghost:hover {
    background: var(--color-primary);
    color: #fff;
}

/* ========== 页脚 ========== */
.site-footer {
    background: #0a1f3a;
    color: #cdd5e0;
    padding: 60px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    gap: 14px;
    align-items: center;
}

.footer-logo {
    width: 44px;
    height: 44px;
    background: #fff;
    border-radius: 10px;
    padding: 4px;
}

.footer-brand-name {
    font-size: 15px;
    color: #fff;
    font-weight: 600;
}

.footer-brand-sub {
    font-size: 11px;
    color: #6b7d95;
    letter-spacing: 0.15em;
    margin-top: 2px;
}

.footer-col h4 {
    color: #fff;
    font-size: 14px;
    margin-bottom: 16px;
    font-weight: 600;
}

.footer-col a {
    display: block;
    font-size: 13px;
    color: #8b9bb1;
    padding: 4px 0;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--color-accent);
}

.footer-info {
    font-size: 13px;
    color: #8b9bb1;
    padding: 4px 0;
    line-height: 1.6;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid #1a2c4a;
    text-align: center;
    font-size: 12px;
    color: #6b7d95;
}

/* ========== 模态框 ========== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.open { display: flex; }

.modal-mask {
    position: absolute;
    inset: 0;
    background: rgba(10, 31, 58, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: fadeIn 0.25s var(--ease);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-dialog {
    position: relative;
    background: #fff;
    border-radius: var(--radius-lg);
    max-width: 920px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: dialogIn 0.3s var(--ease-bounce);
}

.modal-dialog-sm {
    max-width: 480px;
}

@keyframes dialogIn {
    from { opacity: 0; transform: scale(0.94) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-soft);
    transition: all 0.2s;
    z-index: 2;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
}

.modal-close:hover {
    background: var(--color-bg-soft);
    color: var(--color-text);
    transform: rotate(90deg);
}

.modal-body {
    padding: 40px;
}

/* 产品详情 */
.pd-hero {
    padding-bottom: 24px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--color-border-soft);
}

.pd-cas-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.pd-cas {
    font-size: 13px;
    color: var(--color-text-soft);
    font-family: var(--font-mono);
}

.pd-cas strong {
    color: var(--color-primary);
    font-weight: 600;
}

.pd-cat {
    font-size: 11px;
    color: var(--color-accent);
    background: rgba(0, 184, 212, 0.1);
    padding: 3px 10px;
    border-radius: 4px;
    border: 1px solid rgba(0, 184, 212, 0.2);
}

.pd-name-en {
    font-size: 22px;
    color: var(--color-primary);
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 8px;
}

.pd-name-zh {
    font-size: 14px;
    color: var(--color-text-soft);
    line-height: 1.6;
}

.pd-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

.pd-info-item {
    padding: 14px 16px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border-soft);
}

.pd-info-wide {
    grid-column: 1 / -1;
}

.pd-info-label {
    font-size: 11px;
    color: var(--color-text-soft);
    margin-bottom: 4px;
    letter-spacing: 0.05em;
}

.pd-info-value {
    font-size: 14px;
    color: var(--color-text);
    font-weight: 500;
    word-break: break-all;
}

.purity-tag {
    display: inline-block;
    padding: 2px 10px;
    background: var(--grad-primary);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 4px;
}

.pd-cta-row {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.pd-inquiry {
    flex: 1;
    justify-content: center;
}

.pd-call {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.pd-disclaimer {
    font-size: 11px;
    color: var(--color-text-soft);
    line-height: 1.6;
    padding: 12px;
    background: var(--color-bg-soft);
    border-radius: 6px;
    border-left: 3px solid var(--color-accent);
}

/* 询价弹窗 */
.inquiry-head {
    text-align: center;
    margin-bottom: 24px;
}

.inquiry-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--grad-primary);
    color: #fff;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(10, 77, 140, 0.3);
}

.inquiry-head h3 {
    font-size: 20px;
    color: var(--color-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.inquiry-head p {
    font-size: 13px;
    color: var(--color-text-soft);
    line-height: 1.6;
    padding: 0 20px;
}

.inquiry-product {
    padding: 12px 16px;
    background: rgba(0, 184, 212, 0.06);
    border: 1px solid rgba(0, 184, 212, 0.2);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 13px;
}

.ip-label {
    color: var(--color-text-soft);
    margin-right: 6px;
}

.ip-name {
    color: var(--color-primary);
    font-weight: 600;
}

.inquiry-channels {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.ic-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    background: var(--color-bg);
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-md);
    transition: all 0.2s var(--ease);
    cursor: pointer;
}

.ic-item:hover {
    background: #fff;
    border-color: var(--color-accent);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.ic-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--grad-primary);
    color: #fff;
    border-radius: 12px;
}

.ic-text { flex: 1; }

.ic-label {
    font-size: 11px;
    color: var(--color-text-soft);
    margin-bottom: 2px;
    letter-spacing: 0.05em;
}

.ic-value {
    font-size: 15px;
    color: var(--color-primary);
    font-weight: 600;
}

.inquiry-tip {
    display: flex;
    gap: 8px;
    padding: 10px 12px;
    background: rgba(255, 184, 28, 0.08);
    border-left: 3px solid #ffb71c;
    border-radius: 4px;
    font-size: 12px;
    color: var(--color-text-mid);
    line-height: 1.6;
}

.inquiry-tip svg { flex-shrink: 0; color: #ffb71c; margin-top: 2px; }

/* ========== Toast ========== */
.toast {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    background: rgba(10, 31, 58, 0.95);
    color: #fff;
    padding: 12px 24px;
    border-radius: 100px;
    font-size: 14px;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s var(--ease);
    backdrop-filter: blur(8px);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.success { background: rgba(0, 184, 84, 0.95); }
.toast.error { background: rgba(220, 53, 69, 0.95); }

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
    .cap-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
    .section { padding: 60px 0; }
    .section-title-cn { font-size: 32px; }
    .section-title-cn::before, .section-title-cn::after { display: none; }

    .nav-main { display: none; }
    .nav-mobile-btn { display: flex; }

    .hero { padding: 110px 0 60px; }
    .hero-title-cn { font-size: 40px; }
    .hero-title-en { font-size: 16px; }
    .hero-subtitle { font-size: 14px; }
    .hero-subtitle br { display: none; }

    .hero-search-tips { font-size: 12px; }
    .hero-stats { gap: 20px; }
    .stat-num { font-size: 28px; }

    .about-grid { grid-template-columns: 1fr; gap: 60px; }
    .about-visual { min-height: 360px; }

    .news-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .cta-content { max-width: 100%; }
    .cta-decoration { opacity: 0.3; right: -120px; }

    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .product-search-bar { flex-direction: column; align-items: stretch; }
    .psb-meta { padding-left: 0; border-left: 0; padding-top: 8px; border-top: 1px solid var(--color-border); }

    .footer-grid { grid-template-columns: 1fr; gap: 30px; }
    .modal-body { padding: 28px 20px; }
    .pd-info-grid { grid-template-columns: 1fr; }
    .pd-info-wide { grid-column: 1; }
    .pd-cta-row { flex-direction: column; }
    .pd-cta-row .btn-primary, .pd-cta-row .btn-ghost { width: 100%; justify-content: center; }
}

@media (max-width: 600px) {
    .container { padding: 0 16px; }
    .nav-wrap { padding: 12px 16px; }
    .brand-logo { width: 40px; height: 40px; }
    .brand-name-cn { font-size: 16px; }
    .brand-name-en { font-size: 10px; }

    .product-grid { grid-template-columns: 1fr; }
    .cap-grid { grid-template-columns: 1fr; }

    .hero-title-cn { font-size: 32px; }
    .hero-search-box { flex-direction: column; padding: 8px; border-radius: var(--radius-md); gap: 8px; }
    .hero-search-box input { padding: 8px 12px; }
    .hero-search-btn { width: 100%; }

    .pd-layout { flex-direction: column !important; }
    .pd-left { width: 100% !important; border-right: 0 !important; border-bottom: 1px solid var(--color-border-soft); padding-right: 0 !important; padding-bottom: 20px; margin-bottom: 20px; }
    .pd-right { flex: 1 !important; }
    .pd-mol-wrap .pd-mol-svg { width: 220px !important; height: 220px !important; }
}

/* ====================================================================
   v3 新增样式
   ==================================================================== */

/* 全局动态分子背景 */
#globalBgCanvas {
    position: fixed;
    top: 0;
    left: 0;
    z-index: -1;
    pointer-events: none;
}

/* 滚动进度条 */
#scrollProgress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #0a4d8c, #00b8d4, #0a4d8c);
    background-size: 200% 100%;
    z-index: 9999;
    width: 0;
    transition: width 0.1s linear;
    box-shadow: 0 0 8px rgba(0, 184, 212, 0.5);
    animation: progressShimmer 3s linear infinite;
}

@keyframes progressShimmer {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* Section 渐入动画 */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal-in {
    opacity: 1;
    transform: translateY(0);
}

/* 产品详情双栏布局 */
.pd-layout {
    display: flex;
    gap: 32px;
    align-items: stretch;
}

.pd-left {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-right: 1px solid var(--color-border-soft);
    padding-right: 32px;
}

.pd-mol-wrap {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.pd-mol-wrap .pd-mol-svg {
    width: 280px;
    height: 280px;
    filter: drop-shadow(0 4px 16px rgba(10, 77, 140, 0.12));
    animation: molFloat 4s ease-in-out infinite;
}

@keyframes molFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-6px) rotate(1deg); }
}

.pd-mol-label {
    margin-top: 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--color-primary);
    text-align: center;
}

.pd-mol-hint {
    margin-top: 4px;
    font-size: 11px;
    color: var(--color-text-faint);
    text-align: center;
}

.pd-right {
    flex: 1;
    min-width: 0;
}

/* 分子结构 SVG 通用样式 */
.mol-svg,
.pd-mol-svg {
    display: block;
}

/* Section 装饰光晕 */
.section::before,
.section::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}

.section::before {
    top: 10%;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 184, 212, 0.06), transparent 70%);
}

.section::after {
    bottom: 10%;
    left: -100px;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(10, 77, 140, 0.04), transparent 70%);
}

.section .container {
    position: relative;
    z-index: 1;
}

/* 核心能力卡片增强 */
.cap-card {
    position: relative;
    overflow: hidden;
}

.cap-card::after {
    content: '';
    position: absolute;
    bottom: -30px;
    left: -30px;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(0, 184, 212, 0.08), transparent 70%);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.4s;
}

.cap-card:hover::after {
    opacity: 1;
}

/* 联系区域装饰增强 */
.contact-cta::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.08), transparent 60%);
    pointer-events: none;
}

/* 新闻卡片增强 */
.news-card {
    position: relative;
    overflow: hidden;
}

.news-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 0%, rgba(0, 184, 212, 0.02) 100%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s;
}

.news-card:hover::before {
    opacity: 1;
}

/* 导航栏科技感增强 */
.site-header.scrolled {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(180%) blur(24px);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    border-bottom-color: var(--color-border);
    box-shadow: 0 4px 24px rgba(10, 77, 140, 0.06);
}

/* 响应式补充：3列产品网格 */
@media (max-width: 1100px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
    .pd-layout { flex-direction: column; }
    .pd-left { width: 100%; border-right: 0; border-bottom: 1px solid var(--color-border-soft); padding-right: 0; padding-bottom: 20px; margin-bottom: 20px; }
    .pd-right { flex: 1; }
    .pd-mol-wrap .pd-mol-svg { width: 240px; height: 240px; }
}

/* ====================================================================
   v5 新增样式 — 核心领域 / 服务流程 / 资质保障带
   ==================================================================== */

/* ========== 核心领域 ========== */
.areas {
    background: #fff;
}

.areas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.area-card {
    position: relative;
    padding: 36px 28px;
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-soft);
    transition: all 0.3s var(--ease);
    overflow: hidden;
}

.area-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--grad-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

.area-card:hover {
    background: #fff;
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.area-card:hover::before {
    transform: scaleX(1);
}

.area-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 77, 140, 0.06);
    border-radius: 14px;
    margin-bottom: 20px;
    transition: all 0.3s var(--ease);
}

.area-card:hover .area-icon {
    background: var(--grad-primary);
}

.area-icon svg {
    color: var(--color-primary);
    transition: color 0.3s;
}

.area-card:hover .area-icon svg {
    color: #fff;
}

.area-card h3 {
    font-family: var(--font-serif);
    font-size: 20px;
    font-weight: 700;
    color: var(--color-primary-deep);
    margin-bottom: 6px;
}

.area-card .area-en {
    font-size: 12px;
    color: var(--color-text-faint);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.area-card > p {
    font-size: 13px;
    color: var(--color-text-mid);
    line-height: 1.7;
    margin-bottom: 14px;
}

.area-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.area-tags span {
    font-size: 11px;
    color: var(--color-text-soft);
    background: rgba(10, 77, 140, 0.04);
    padding: 3px 10px;
    border-radius: 100px;
    border: 1px solid var(--color-border-soft);
}

/* ========== 资质保障带 ========== */
.quality-band {
    background: linear-gradient(135deg, #0a4d8c 0%, #063a6e 100%);
    padding: 48px 0;
    position: relative;
    overflow: hidden;
}

.quality-band::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.q-item {
    text-align: center;
    color: #fff;
}

.q-item svg {
    margin-bottom: 12px;
    opacity: 0.9;
}

.q-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: 0.03em;
}

.q-item p {
    font-size: 12px;
    opacity: 0.7;
    line-height: 1.6;
}

/* ========== 服务流程 ========== */
.process {
    background: var(--color-bg);
}

.process-track {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    position: relative;
    margin-top: 20px;
}

/* 连接线 */
.process-track::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-border) 0%, var(--color-accent) 50%, var(--color-border) 100%);
    z-index: 0;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 0 12px;
}

.process-num {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: #fff;
    border: 2px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-serif);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-soft);
    transition: all 0.3s var(--ease);
    position: relative;
}

.process-step:hover .process-num {
    border-color: var(--color-accent);
    color: var(--color-primary);
    transform: scale(1.08);
    box-shadow: 0 8px 24px rgba(0, 184, 212, 0.2);
}

.process-step:hover .process-num::after {
    opacity: 1;
}

.process-num::after {
    content: '';
    position: absolute;
    inset: -6px;
    border: 2px solid rgba(0, 184, 212, 0.2);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.3s;
}

.process-step h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-primary-deep);
    margin-bottom: 6px;
}

.process-step p {
    font-size: 12px;
    color: var(--color-text-soft);
    line-height: 1.6;
}

/* ========== 核心能力标题用 serif ========== */
.cap-card h3 {
    font-family: var(--font-serif);
}

/* ========== CTA 标题用 serif ========== */
.cta-content h3 {
    font-family: var(--font-serif);
}

/* ========== 新闻标题用 serif ========== */
.news-card h3 {
    font-family: var(--font-serif);
}

/* ========== 响应式补充 ========== */
@media (max-width: 1100px) {
    .areas-grid { grid-template-columns: repeat(2, 1fr); }
    .quality-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .process-track { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
    .process-track::before { display: none; }
}

@media (max-width: 600px) {
    .areas-grid { grid-template-columns: 1fr; }
    .quality-grid { grid-template-columns: 1fr; gap: 24px; }
    .process-track { grid-template-columns: 1fr; gap: 32px; }
}