/* ==============================================
   达羚文化官网 - 1:1复刻CodeBuddy
   ============================================== */

:root {
    --bg-primary: #000000;
    --bg-secondary: #000000;
    --bg-tertiary: #111111;
    --bg-card: #1A1A1A;
    --bg-card-hover: #222222;
    --bg-input: #111111;

    --accent: #6C4DFF;
    --accent-hover: #7B5FFF;
    --accent-light: rgba(108, 77, 255, 0.12);
    --accent-border: rgba(108, 77, 255, 0.2);
    --accent-glow: rgba(108, 77, 255, 0.25);

    --green: #28B894;
    --green-light: rgba(40, 184, 148, 0.12);

    --text-primary: #FFFFFF;
    --text-secondary: #FFFFFF;
    --text-muted: #999999;
    --text-dim: #777777;

    --border: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    --border-medium: rgba(255, 255, 255, 0.18);

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 100px;

    --container: 1280px;
    --container-pad: 24px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--container-pad);
}

/* ===== 导航栏 ===== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: #000000;
    border-bottom: 1px solid rgba(255,255,255,0.10);
    transition: all 0.3s ease;
}

.header .container {
    max-width: 100%;
    padding: 0 48px;
}

.header.scrolled {
    background: #000000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.6);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}

.nav-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-right: 0;
}

.logo-img {
    height: 36px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    justify-content: space-evenly;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    color: #FFFFFF;
    border-radius: 6px;
    transition: all 0.2s;
    white-space: nowrap;
    letter-spacing: 0.3px;
}

.nav-link:hover { color: #FFFFFF; background: rgba(255,255,255,0.08); }
.nav-link svg { transition: transform 0.2s; }

.nav-dropdown { position: relative; }
.nav-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown:hover .nav-link svg { transform: rotate(180deg); }

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 180px;
    padding: 6px;
    background: #000000;
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
}

.dropdown-item {
    display: block;
    padding: 10px 14px;
    font-size: 14px;
    color: #FFFFFF;
    border-radius: 6px;
    transition: all 0.15s;
}

.dropdown-item:hover { background: rgba(108,77,255,0.12); color: #a78bfa; }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    margin-left: 0;
}

.nav-login {
    padding: 9px 24px;
    background: #000000;
    color: #FFFFFF;
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-login:hover {
    background: #1a1a1a;
    border-color: rgba(255,255,255,0.3);
}

.hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: #FFFFFF; border-radius: 1px; transition: all 0.3s; }
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero 轮播图 ===== */
.hero-slider {
    position: relative;
    width: 100%;
    padding-top: 64px;
    background: var(--bg-primary);
    overflow: hidden;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 560px;
    overflow: hidden;
}

.slider-track {
    display: flex;
    width: 200%;
    height: 100%;
    transition: transform 0.5s ease-in-out;
}

.slider-slide {
    width: 50%;
    height: 100%;
    flex-shrink: 0;
    position: relative;
}

.slider-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.10);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 50%;
    color: #FFFFFF;
    z-index: 10;
    transition: all 0.2s;
}

.slider-arrow:hover {
    background: rgba(255,255,255,0.18);
    border-color: rgba(255,255,255,0.25);
}

.slider-prev { left: 24px; }
.slider-next { right: 24px; }

.slider-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.35);
    transition: all 0.2s;
}

.slider-dot.active {
    background: #FFFFFF;
    width: 24px;
    border-radius: 5px;
}

.slider-dot:hover {
    background: rgba(255,255,255,0.65);
}

.slider-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 5;
    max-width: 900px;
    padding: 0 24px;
}

.slider-title {
    font-size: 52px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 20px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.slider-subtitle {
    font-size: 22px;
    color: #FFFFFF;
    font-weight: 500;
}

.typewriter {
    display: inline-block;
    overflow: hidden;
    border-right: 3px solid var(--accent);
    white-space: nowrap;
    animation: typing 3s steps(16, end) forwards, blink-caret 0.8s step-end infinite;
    width: 0;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    0%, 100% { border-color: var(--accent); }
    50% { border-color: transparent; }
}

/* ===== 关于我们 ===== */
.about-us {
    background: #FFFFFF;
    padding: 100px 0 80px;
    color: #000000;
    position: relative;
    overflow: hidden;
}

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

.about-us-header {
    margin-bottom: 40px;
}

.about-us-en {
    font-size: 56px;
    font-weight: 800;
    color: #000000;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 4px;
}

.about-us-cn {
    display: block;
    font-size: 16px;
    font-weight: 500;
    color: #000000;
    margin-top: 4px;
}

.about-us-main {
    max-width: 900px;
    margin: 0 auto 60px;
}

.about-us-company {
    font-size: 28px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

.about-us-content p {
    font-size: 15px;
    line-height: 2;
    color: #000000;
    margin-bottom: 24px;
    text-indent: 2em;
}

.about-us-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    color: #000000;
    transition: all 0.2s;
}

.about-us-more:hover {
    color: var(--accent);
    gap: 14px;
}

.more-arrow {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.06);
    border-radius: 50%;
    transition: all 0.2s;
}

.about-us-more:hover .more-arrow {
    background: var(--accent);
    color: #FFFFFF;
}

.about-us-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 60px;
    border-top: 1px solid rgba(0,0,0,0.10);
    max-width: 900px;
    margin: 0 auto;
}

.about-us-stat {
    text-align: left;
}

.stat-value {
    display: flex;
    align-items: baseline;
    gap: 2px;
    margin-bottom: 8px;
}

.stat-num {
    font-size: 48px;
    font-weight: 800;
    color: #000000;
    letter-spacing: -0.02em;
    line-height: 1;
}

.stat-unit {
    font-size: 24px;
    font-weight: 700;
    color: #000000;
}

.stat-label {
    font-size: 14px;
    color: #000000;
    line-height: 1.5;
}

/* ===== 合作伙伴Logo墙 ===== */
.partners {
    background: #000000;
    padding: 80px 0 80px;
    overflow: hidden;
    position: relative;
}

.partners-header {
    margin-bottom: 40px;
}

.partners-en {
    font-size: 56px;
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 4px;
}

.partners-cn {
    font-size: 16px;
    font-weight: 500;
    color: #FFFFFF;
}

.partners-grid {
    width: 100%;
    margin: 0 0 80px;
    background: #111111;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.partners-row {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 4px 0;
}

.partners-row:first-child {
    border-bottom: 1px solid var(--border);
}

.partners-row::before,
.partners-row::after {
    content: '';
    position: absolute;
    top: 0;
    width: 120px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.partners-row::before {
    left: 0;
    background: linear-gradient(to right, #000000, transparent);
}

.partners-row::after {
    right: 0;
    background: linear-gradient(to left, #000000, transparent);
}

.partners-track {
    display: flex;
    align-items: center;
    width: max-content;
    animation: marquee 40s linear infinite;
}

.partners-row.reverse .partners-track {
    animation-direction: reverse;
    animation-duration: 45s;
}

.partners-row[data-paused='true'] .partners-track {
    animation-play-state: paused;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.partner-item {
    flex: 0 0 auto;
    width: 260px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 24px;
    transition: opacity 0.2s;
}

.partner-item:hover {
    opacity: 0.7;
}

.partner-img {
    max-width: 220px;
    max-height: 70px;
    width: auto;
    height: auto;
    opacity: 0.8;
    transition: all 0.2s;
}

.partner-item:hover .partner-img {
    opacity: 1;
}

.partners-slogan {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.partners-slogan h2 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    color: #FFFFFF;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.partners-slogan p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ===== 行业资讯 ===== */
.news {
    background: #FFFFFF;
    padding: 100px 0 80px;
    color: #000000;
    position: relative;
    overflow: hidden;
}

.news-header {
    margin-bottom: 48px;
}

.news-en {
    font-size: 56px;
    font-weight: 800;
    color: #000000;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 4px;
}

.news-cn {
    display: block;
    font-size: 16px;
    font-weight: 500;
    color: #000000;
    margin-top: 4px;
}

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

.news-card {
    background: #FFFFFF;
    border-radius: var(--radius-md);
    padding: 32px;
    transition: all 0.3s ease;
    border: 1px solid rgba(0,0,0,0.10);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.10);
}

.news-date {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(108,77,255,0.10);
    color: var(--accent);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 16px;
}

.news-card-cover {
    width: 100%;
    height: 180px;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 16px;
    background: #f5f5f5;
}

.news-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.news-card-cover img.loaded {
    opacity: 1;
}

.news-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: #000000;
    line-height: 1.4;
    margin-bottom: 12px;
}

.news-card h3 a {
    color: #000000;
    text-decoration: none;
    transition: color 0.2s;
}

.news-card h3 a:hover {
    color: var(--accent);
}

.news-card p {
    font-size: 14px;
    color: #000000;
    line-height: 1.7;
    margin-bottom: 20px;
}

.news-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    transition: gap 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
}

.news-link:hover {
    gap: 8px;
}

/* 行业资讯内页专用 - 与首页一致的白色简洁卡片 */
.news-inner {
    background: #FFFFFF;
    padding: 60px 0 80px;
    color: #000000;
}

.news-inner .news-card {
    background: #FFFFFF;
    padding: 32px;
    border: 1px solid rgba(0,0,0,0.10);
    border-radius: var(--radius-md);
}

.news-inner .news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.10);
    border-color: rgba(0,0,0,0.10);
}

.news-inner .news-card h3 {
    color: #000000;
}

.news-inner .news-card h3 a {
    color: #000000;
}

.news-inner .news-card h3 a:hover {
    color: var(--accent);
}

.news-inner .news-card p {
    color: #000000;
}

.news-inner .news-date {
    font-size: 12px;
    color: var(--accent);
    background: rgba(108,77,255,0.10);
    padding: 4px 12px;
    border-radius: 100px;
    font-weight: 600;
    display: inline-block;
}

.news-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ===== CTA 页脚 ===== */
.footer-cta {
    background: #000000;
    padding: 60px 0 0;
    color: #FFFFFF;
    position: relative;
    overflow: hidden;
}

.footer-cta .container {
    position: relative;
}

.footer-brand-wordmark {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 0;
    width: 100%;
    padding: 60px 0 100px;
}

.footer-brand-wordmark svg {
    flex-shrink: 0;
    color: #4C4F6B;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    transition-delay: calc(var(--i) * 0.08s);
    will-change: transform, opacity;
}

.footer-brand-wordmark.in-view svg {
    opacity: 0.3;
    transform: translateY(0) scale(1);
}

.footer-cta-bar {
    border-top: 1px solid rgba(255,255,255,0.10);
    padding: 20px 0;
    background: #000000;
}

.footer-cta-bar-layout {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-cta-bar-left,
.footer-cta-bar-right {
    font-size: 12px;
    color: #FFFFFF;
    margin: 0;
}

/* ===== 内页通用样式 ===== */
.inner-hero {
    background: #000000;
    padding: 140px 0 80px;
    text-align: center;
    color: #FFFFFF;
}

.inner-hero-title {
    font-size: 48px;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.inner-hero-subtitle {
    font-size: 18px;
    color: #FFFFFF;
    max-width: 600px;
    margin: 0 auto;
}

.inner-content {
    background: #FFFFFF;
    padding: 80px 0;
    color: #000000;
    overflow-x: hidden;
}

.inner-content .container {
    max-width: 900px;
}

.inner-content img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    margin: 16px auto;
}

.inner-content h2 {
    font-size: 28px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 24px;
}

.inner-content p {
    font-size: 16px;
    line-height: 2;
    color: #000000;
    margin-bottom: 16px;
}

.inner-content ul {
    list-style: disc;
    padding-left: 24px;
    margin-bottom: 24px;
}

.inner-content li {
    font-size: 16px;
    line-height: 2;
    color: #000000;
}

.inner-content strong {
    font-weight: 700;
    color: #000000;
}

/* ===== 联系我们 ===== */
.contact-page {
    padding: 60px 0 100px;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    align-items: start;
    background: #FFFFFF;
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(0,0,0,0.08);
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.06);
}

.contact-info {
    padding: 48px;
    background: #f8f8f8;
    min-height: 100%;
}

.contact-info-header {
    margin-bottom: 40px;
}

.contact-info-header .contact-en {
    display: block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #999;
    margin-bottom: 8px;
}

.contact-info-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: #000;
    margin-bottom: 8px;
    line-height: 1.2;
}

.contact-slogan {
    font-size: 14px;
    color: #666;
}

.contact-hotline {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.contact-hotline-label {
    display: block;
    font-size: 13px;
    color: #666;
    margin-bottom: 10px;
}

.contact-hotline-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #c00;
    letter-spacing: 1px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 77, 255, 0.1);
    color: #6C4DFF;
    border-radius: 50%;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-item div {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 12px;
    color: #999;
    margin-bottom: 4px;
}

.contact-value {
    font-size: 15px;
    font-weight: 600;
    color: #000;
}

.contact-form {
    padding: 48px;
}

.contact-form h2 {
    font-size: 28px;
    font-weight: 700;
    color: #000;
    margin-bottom: 8px;
    line-height: 1.2;
}

.contact-form-desc {
    font-size: 13px;
    color: #666;
    margin-bottom: 28px;
}

.contact-form-body .form-group {
    margin-bottom: 20px;
}

.contact-form-body .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-form-body label {
    display: block;
    font-size: 13px;
    color: #333;
    margin-bottom: 6px;
    font-weight: 500;
}

.contact-form-body .input-text,
.contact-form-body .input-textarea {
    width: 100%;
    padding: 12px 16px;
    background: #f8f8f8;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 8px;
    color: #000;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
}

.contact-form-body .input-text:focus,
.contact-form-body .input-textarea:focus {
    border-color: #6C4DFF;
    background: #FFFFFF;
}

.contact-form-body .input-textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form-body .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 40px;
    background: #6C4DFF;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.contact-form-body .btn-primary:hover {
    background: #7B5FFF;
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .contact-layout {
        grid-template-columns: 1fr;
    }
    .contact-info,
    .contact-form {
        padding: 32px 24px;
    }
    .contact-form-body .form-row {
        grid-template-columns: 1fr;
    }
    .contact-hotline-number {
        font-size: 28px;
    }
}

/* ===== 文章详情页 ===== */
.article-page {
    background: #FFFFFF;
    color: #000000;
}

.article-hero {
    background: #000000;
    padding: 140px 0 60px;
    text-align: center;
    color: #FFFFFF;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 14px;
}

.article-category {
    padding: 4px 12px;
    background: var(--accent);
    color: #FFFFFF;
    border-radius: 100px;
    font-weight: 600;
}

.article-date {
    color: #FFFFFF;
    opacity: 0.7;
}

.article-title {
    font-size: 42px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    max-width: 800px;
    margin: 0 auto 16px;
}

.article-excerpt {
    font-size: 18px;
    color: #FFFFFF;
    opacity: 0.8;
    max-width: 700px;
    margin: 0 auto;
}

.article-content {
    padding: 60px 0 80px;
}

.article-content .container {
    max-width: 800px;
}

.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: #000000;
    margin: 40px 0 16px;
    line-height: 1.4;
}

.article-content p {
    font-size: 16px;
    line-height: 2;
    color: #000000;
    margin-bottom: 16px;
}

.article-content ul {
    list-style: disc;
    padding-left: 24px;
    margin-bottom: 24px;
}

.article-content li {
    font-size: 16px;
    line-height: 2;
    color: #000000;
}

.article-back {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .article-hero { padding: 120px 0 48px; }
    .article-title { font-size: 30px; }
    .article-excerpt { font-size: 16px; }
    .article-content { padding: 48px 0 60px; }
    .article-content h2 { font-size: 20px; margin-top: 32px; }
    .article-content p,
    .article-content li { font-size: 15px; }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .header .container { padding: 0 32px; }
    .slider-container { height: 420px; }
    .slider-title { font-size: 38px; }
    .slider-subtitle { font-size: 18px; }
    .slider-arrow { width: 40px; height: 40px; }
    .slider-prev { left: 16px; }
    .slider-next { right: 16px; }
    .about-us-en { font-size: 42px; }
    .about-us-stats { grid-template-columns: repeat(2, 1fr); }
    .partners-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    :root { --container-pad: 16px; }

    .header .container { padding: 0 20px; }
    .nav-menu, .nav-actions { display: none; }
    .nav-menu.active {
        display: flex; flex-direction: column;
        position: fixed; top: 64px; left: 0; right: 0;
        background: rgba(0,0,0,0.98);
        backdrop-filter: blur(20px);
        padding: 20px;
        gap: 4px;
        border-bottom: 1px solid var(--border);
    }
    .nav-menu.active .nav-link {
        padding: 12px 16px;
        font-size: 15px;
    }
    .hamburger { display: flex; }

    .slider-container { height: 320px; }
    .slider-title { font-size: 26px; }
    .slider-subtitle { font-size: 15px; }
    .slider-arrow { width: 36px; height: 36px; }
    .slider-prev { left: 12px; }
    .slider-next { right: 12px; }
    .slider-dots { bottom: 16px; }

    .about-us { padding: 60px 0; }
    .about-us-en { font-size: 32px; }
    .about-us-company { font-size: 22px; }
    .about-us-content p { font-size: 14px; }
    .about-us-stats { grid-template-columns: 1fr 1fr; gap: 16px; padding-top: 40px; }
    .stat-num { font-size: 36px; }
    .stat-unit { font-size: 18px; }
    .stat-label { font-size: 12px; }

    .partners { padding: 60px 0 60px; }
    .partners-en { font-size: 42px; }
    .partners-cn { font-size: 14px; }
    .partner-item { width: 210px; height: 82px; padding: 12px 20px; }
    .partner-img { max-width: 150px; max-height: 45px; }
    .partners-slogan h2 { font-size: 24px; }

    .news { padding: 60px 0; }
    .news-en { font-size: 32px; }
    .news-grid { grid-template-columns: 1fr; }
    .news-inner .news-card { padding: 24px; }

    .footer-cta { padding: 48px 0 0; }
    .footer-brand-wordmark { padding: 40px 0 60px; }
    .footer-brand-wordmark svg { height: 130px; width: auto; }
    .footer-cta-bar-left,
    .footer-cta-bar-right { font-size: 11px; }

    .inner-hero { padding: 120px 0 60px; }
    .inner-hero-title { font-size: 36px; }
    .inner-hero-subtitle { font-size: 16px; }
    .inner-content { padding: 60px 0; }
    .inner-content h2 { font-size: 24px; }
}

@media (max-width: 480px) {
    .slider-container { height: 260px; }
    .slider-title { font-size: 20px; margin-bottom: 12px; }
    .slider-subtitle { font-size: 13px; }
    .slider-arrow { display: none; }
    .partners { padding: 40px 0 40px; }
    .partners-en { font-size: 32px; }
    .partners-cn { font-size: 13px; }
    .partners-header { margin-bottom: 24px; }
    .partner-item { width: 170px; height: 68px; padding: 10px 16px; }
    .partner-img { max-width: 120px; max-height: 36px; }
    .news-inner .news-card { padding: 20px; }
    .footer-cta { padding: 32px 0 0; }
    .footer-brand-wordmark { padding: 24px 0 40px; }
    .footer-brand-wordmark svg { height: 60px; width: auto; }
    .footer-cta-bar-layout { flex-direction: column; text-align: center; gap: 6px; }
    .footer-cta-bar-left,
    .footer-cta-bar-right { font-size: 10px; }

    .inner-hero { padding: 100px 0 48px; }
    .inner-hero-title { font-size: 28px; }
    .inner-hero-subtitle { font-size: 14px; }
    .inner-content { padding: 48px 0; }
    .inner-content h2 { font-size: 20px; }
    .inner-content p,
    .inner-content li { font-size: 14px; }
}

/* ===== 案例图库 (Case Gallery) ===== */
.case-gallery {
    margin-bottom: 32px;
}

.case-gallery-main {
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 12px;
    background: #111111;
    position: relative;
}

.case-main-image {
    width: 100%;
    height: 450px;
    object-fit: contain;
    display: block;
    border-radius: 12px;
    cursor: zoom-in;
    transition: height 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease;
    transform-origin: center center;
    background: #0a0a0a;
}

.case-main-image.zoomed {
    height: auto;
    max-height: 85vh;
    object-fit: contain;
    cursor: zoom-out;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    border-radius: 4px;
}

.case-gallery-thumbs {
    display: flex;
    gap: 10px;
}

.case-thumb {
    width: 90px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.2s ease, opacity 0.2s ease;
    opacity: 0.6;
}

.case-thumb:hover,
.case-thumb.active {
    border-color: #6C4DFF;
    opacity: 1;
}

@media (max-width: 768px) {
    .case-main-image {
        height: 280px;
    }

    .case-thumb {
        width: 60px;
        height: 42px;
    }
}