/* ============================================================
   天德腾润 TIANDE TENGRUN — 企业官方网站样式
   主色调：中国红 / 墨黑 / 纯白
   ============================================================ */

/* --- CSS 变量 --- */
:root {
    --red: #C41E3A;
    --red-dark: #A0182F;
    --red-light: #E8455C;
    --black: #1a1a1a;
    --black-soft: #2a2a2a;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --font-cn: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-en: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 24px rgba(0,0,0,0.10);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.14);
    --shadow-xl: 0 24px 80px rgba(0,0,0,0.18);
    --radius: 4px;
    --radius-lg: 8px;
    --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-cn);
    color: var(--black);
    background: var(--white);
    line-height: 1.75;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* --- 通用 Section --- */
.section {
    padding: 110px 0;
}

.section-dark {
    background: var(--black);
    color: var(--white);
}

.section-dark .section-subtitle {
    color: var(--gray-400);
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 4px;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 16px;
    position: relative;
}

.section-tag::after {
    content: '';
    display: block;
    width: 24px;
    height: 2px;
    background: var(--red);
    margin: 10px auto 0;
}

.section-title {
    font-size: 42px;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 16px;
    color: inherit;
}

.section-divider {
    width: 60px;
    height: 3px;
    background: var(--red);
    margin: 0 auto 20px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--gray-600);
    font-weight: 300;
    letter-spacing: 1px;
}

/* ============================================================
   顶部导航
   ============================================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition);
    background: transparent;
}

.header.scrolled {
    background: rgba(26, 26, 26, 0.97);
    backdrop-filter: blur(12px);
    padding: 12px 0;
    box-shadow: var(--shadow-lg);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--white);
}

.header.scrolled .logo {
    color: var(--white);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--red);
    color: var(--white);
    font-size: 24px;
    font-weight: 900;
    border-radius: var(--radius);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 1.2;
}

.logo-sub {
    font-family: var(--font-en);
    font-size: 10px;
    letter-spacing: 3px;
    opacity: 0.7;
    line-height: 1;
}

/* 导航菜单 */
.nav-list {
    display: flex;
    gap: 36px;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.85);
    position: relative;
    padding: 4px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--red);
    transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: var(--white);
    transition: all 0.3s;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================================
   Hero 首页大屏
   ============================================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1a1e 40%, #1a1a1a 100%);
    background-size: 400% 400%;
    animation: gradientShift 8s ease infinite;
    overflow: hidden;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 50%, rgba(196, 30, 58, 0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 30%, rgba(196, 30, 58, 0.08) 0%, transparent 50%);
    z-index: 1;
}

/* 粒子背景 */
.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(255,255,255,0.4);
    border-radius: 50%;
    animation: floatUp linear infinite;
}

@keyframes floatUp {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100px) scale(1.5);
        opacity: 0;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 860px;
    padding: 0 40px;
}

.hero-tagline {
    font-family: var(--font-en);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 8px;
    color: var(--red);
    margin-bottom: 28px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(36px, 5.5vw, 64px);
    font-weight: 900;
    line-height: 1.25;
    letter-spacing: 3px;
    margin-bottom: 24px;
}

.hero-desc {
    font-size: clamp(15px, 1.8vw, 18px);
    font-weight: 300;
    line-height: 1.9;
    color: rgba(255,255,255,0.75);
    margin-bottom: 44px;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* --- 按钮 --- */
.btn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 2px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    text-transform: uppercase;
}

.btn-primary {
    background: var(--red);
    color: var(--white);
    border-color: var(--red);
}

.btn-primary:hover {
    background: var(--red-dark);
    border-color: var(--red-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(196, 30, 58, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
    border-color: var(--white);
    background: rgba(255,255,255,0.08);
    transform: translateY(-2px);
}

.btn-submit {
    width: 100%;
    padding: 16px;
    font-size: 16px;
    letter-spacing: 3px;
}

/* Hero 滚动提示 */
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.5);
    font-size: 12px;
    letter-spacing: 2px;
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
}

/* --- 动画 --- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

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

/* 滚动入场动画 */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ============================================================
   关于我们
   ============================================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-lead {
    font-size: 18px;
    font-weight: 500;
    color: var(--black);
    line-height: 1.9;
    margin-bottom: 20px;
    padding-left: 16px;
    border-left: 3px solid var(--red);
}

.about-text p {
    color: var(--gray-700);
    margin-bottom: 14px;
    font-size: 15px;
    line-height: 1.9;
}

.about-numbers {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 36px;
    padding-top: 30px;
    border-top: 1px solid var(--gray-200);
}

.about-number-item {
    text-align: center;
}

.about-number-item .num {
    display: block;
    font-size: 36px;
    font-weight: 900;
    color: var(--red);
    font-family: var(--font-en);
    line-height: 1;
    margin-bottom: 6px;
}

.about-number-item .num-label {
    font-size: 13px;
    color: var(--gray-600);
    letter-spacing: 1px;
}

/* 关于我们图片 */
.about-image {
    position: relative;
}

.about-img-main {
    width: 100%;
    aspect-ratio: 4 / 5;
    background: linear-gradient(135deg, #2a2a2a, #3d2a2f);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.about-img-main::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(135deg, rgba(196,30,58,0.08) 0%, transparent 50%),
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px);
}

.about-img-main::after {
    content: 'DINGSHI';
    position: absolute;
    bottom: 24px;
    right: 28px;
    font-family: var(--font-en);
    font-size: 48px;
    font-weight: 900;
    color: rgba(255,255,255,0.06);
    letter-spacing: 8px;
}

.about-img-accent {
    position: absolute;
    bottom: -24px;
    left: -24px;
    width: 180px;
    height: 180px;
    background: var(--red);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.9;
}

.about-badge {
    position: absolute;
    top: 28px;
    right: -28px;
    background: var(--white);
    padding: 18px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
}

.about-badge span {
    font-size: 11px;
    letter-spacing: 3px;
    color: var(--gray-500);
    font-family: var(--font-en);
}

.about-badge strong {
    font-size: 32px;
    font-weight: 900;
    color: var(--red);
    font-family: var(--font-en);
    line-height: 1;
}

/* ============================================================
   核心业务
   ============================================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 48px 36px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

.service-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.15);
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

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

.service-card.featured {
    border-color: var(--red);
    background: rgba(196, 30, 58, 0.06);
}

.service-card.featured::before {
    transform: scaleX(1);
}

.service-icon {
    width: 64px;
    height: 64px;
    color: var(--red);
    margin-bottom: 24px;
}

.service-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: 1px;
}

.service-en {
    font-family: var(--font-en);
    font-size: 12px;
    letter-spacing: 3px;
    color: var(--red);
    margin-bottom: 20px;
    font-weight: 700;
}

.service-card ul {
    margin-bottom: 28px;
}

.service-card li {
    padding: 6px 0;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    padding-left: 20px;
    position: relative;
}

.service-card li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 14px;
    width: 6px;
    height: 6px;
    background: var(--red);
    border-radius: 50%;
}

.service-link {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--red);
    transition: all var(--transition);
}

.service-link:hover {
    color: var(--red-light);
    padding-left: 6px;
}

/* ============================================================
   经典案例
   ============================================================ */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.case-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition);
    background: var(--white);
    cursor: pointer;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.case-img {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.case-img-1 {
    background: linear-gradient(135deg, #1a1a2e, #3a2a3e);
    position: relative;
}
.case-img-1::after { content: '新品发布盛典'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.25); font-size: 28px; font-weight: 900; letter-spacing: 6px; }

.case-img-2 {
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
}
.case-img-2::after { content: '科技峰会'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.25); font-size: 28px; font-weight: 900; letter-spacing: 6px; }

.case-img-3 {
    background: linear-gradient(135deg, #1a1a1a, #4a2a3a);
}
.case-img-3::after { content: '全域营销'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.25); font-size: 28px; font-weight: 900; letter-spacing: 6px; }

.case-img-4 {
    background: linear-gradient(135deg, #2d1a1e, #1a1a2e);
}
.case-img-4::after { content: 'IPO传播'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.25); font-size: 28px; font-weight: 900; letter-spacing: 6px; }

.case-img-5 {
    background: linear-gradient(135deg, #1a1a1a, #2a1a2a);
}
.case-img-5::after { content: '国际大秀'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.25); font-size: 28px; font-weight: 900; letter-spacing: 6px; }

.case-img-6 {
    background: linear-gradient(135deg, #3a2a3a, #1a2a3a);
}
.case-img-6::after { content: '电商孵化'; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.25); font-size: 28px; font-weight: 900; letter-spacing: 6px; }

.case-info {
    padding: 22px 24px;
}

.case-cat {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.case-info h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
    line-height: 1.5;
    color: var(--black);
}

.case-info p {
    font-size: 13px;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ============================================================
   合作伙伴
   ============================================================ */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1px;
}

.client-item {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    padding: 32px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    cursor: default;
}

.client-item:hover {
    background: rgba(196, 30, 58, 0.12);
    border-color: rgba(196, 30, 58, 0.3);
}

.client-item span {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
    color: rgba(255,255,255,0.7);
    transition: color var(--transition);
}

.client-item:hover span {
    color: var(--white);
}

/* ============================================================
   联系我们
   ============================================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.contact-info > p {
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.9;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 22px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.contact-item svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--red);
}

.contact-item strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 2px;
    letter-spacing: 1px;
}

.contact-item span {
    font-size: 14px;
    color: var(--gray-600);
}

/* 表单 */
.contact-form {
    background: var(--gray-50);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 8px;
    color: var(--black);
}

.form-group label span {
    color: var(--red);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 13px 16px;
    font-size: 14px;
    font-family: var(--font-cn);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    background: var(--white);
    color: var(--black);
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ============================================================
   页脚
   ============================================================ */
.footer {
    background: #111;
    color: rgba(255,255,255,0.7);
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo-footer {
    color: var(--white);
}

.footer-brand p {
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255,255,255,0.5);
}

.footer-links h4,
.footer-qr h4 {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
    margin-bottom: 22px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--red);
}

.qr-placeholder {
    width: 100px;
    height: 100px;
    margin-bottom: 10px;
}

.qr-label {
    font-size: 12px;
    color: rgba(255,255,255,0.5);
    letter-spacing: 1px;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 12px;
    color: rgba(255,255,255,0.3);
    letter-spacing: 1px;
}

.footer-bottom a {
    color: rgba(255,255,255,0.4);
}

.footer-bottom a:hover {
    color: var(--red);
}

/* ============================================================
   横版展示模块
   ============================================================ */
.showcase {
    background: var(--white);
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 60px;
    align-items: center;
}

.showcase-media {
    position: relative;
}

.showcase-placeholder {
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1a1e 100%);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: rgba(255,255,255,0.25);
    font-size: 14px;
    letter-spacing: 2px;
    overflow: hidden;
    position: relative;
}

.showcase-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 50%, rgba(196,30,58,0.12) 0%, transparent 60%);
}

.showcase-placeholder svg {
    opacity: 0.4;
    z-index: 1;
}

.showcase-placeholder span {
    z-index: 1;
}

.showcase-text h2 {
    font-size: 32px;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 16px;
    color: var(--black);
}

.showcase-text p {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.9;
    margin-bottom: 12px;
}

/* ============================================================
   关于天德 — 选项卡
   ============================================================ */
.about-tabs {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.about-tab {
    background: none;
    border: none;
    color: rgba(255,255,255,0.5);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 2px;
    padding: 14px 32px;
    cursor: pointer;
    position: relative;
    transition: all var(--transition);
    font-family: var(--font-cn);
}

.about-tab::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--red);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.about-tab:hover {
    color: rgba(255,255,255,0.8);
}

.about-tab.active {
    color: var(--white);
}

.about-tab.active::after {
    transform: scaleX(1);
}

.about-tab-content {
    max-width: 800px;
    margin: 0 auto 40px;
    min-height: 160px;
    transition: opacity 0.3s ease;
}

.about-tab-content h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 1px;
    color: var(--white);
}

.about-tab-content p {
    font-size: 15px;
    color: rgba(255,255,255,0.65);
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-tab-content ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 16px;
}

.about-tab-content li {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    line-height: 1.9;
    padding: 3px 0;
}

.about-tab-link {
    display: inline-block;
    color: var(--red);
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 14px;
    margin-top: 8px;
    transition: all var(--transition);
}

.about-tab-link:hover {
    color: var(--red-light);
    padding-left: 6px;
}

/* About numbers (in dark section) */
.section-dark .about-numbers {
    border-top-color: rgba(255,255,255,0.08);
    margin-top: 36px;
    padding-top: 36px;
}

.section-dark .about-number-item .num-label {
    color: rgba(255,255,255,0.4);
}

/* ============================================================
   客户反馈
   ============================================================ */
.feedback-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.feedback-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    transition: all var(--transition);
    position: relative;
}

.feedback-card::before {
    content: '\201C';
    position: absolute;
    top: 16px;
    left: 24px;
    font-size: 72px;
    font-family: var(--font-en);
    color: var(--red);
    opacity: 0.25;
    line-height: 1;
    pointer-events: none;
}

.feedback-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(196, 30, 58, 0.25);
    transform: translateY(-4px);
}

.feedback-card .feedback-text {
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    line-height: 1.9;
    margin-bottom: 20px;
    padding-top: 10px;
    font-style: italic;
}

.feedback-card .feedback-author {
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 18px;
}

.feedback-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--red);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    color: var(--white);
    flex-shrink: 0;
}

.feedback-author-info strong {
    display: block;
    font-size: 14px;
    color: var(--white);
    letter-spacing: 1px;
}

.feedback-author-info span {
    font-size: 12px;
    color: rgba(255,255,255,0.4);
}

/* ============================================================
   知识问答
   ============================================================ */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.faq-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: all var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

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

.faq-card .faq-icon {
    font-size: 28px;
    margin-bottom: 16px;
}

.faq-card h3 {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: 10px;
    color: var(--black);
}

.faq-card p {
    font-size: 13px;
    color: var(--gray-600);
    line-height: 1.7;
    flex: 1;
}

.faq-card .faq-cat {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--red);
    margin-top: 14px;
    font-weight: 600;
}

/* ============================================================
   招贤纳士 — 首页摘要
   ============================================================ */
.careers-summary {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
    padding: 48px 40px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
}

.careers-summary p {
    font-size: 16px;
    color: rgba(255,255,255,0.6);
    line-height: 1.9;
    margin-bottom: 28px;
}

/* ============================================================
   联系我们 — 地图
   ============================================================ */
.contact-map {
    margin-bottom: 48px;
}

.map-placeholder {
    width: 100%;
    aspect-ratio: 16 / 5;
    max-height: 320px;
    background: linear-gradient(135deg, #e8e8e8, #f0f0f0);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--gray-500);
    border: 2px dashed var(--gray-300);
    transition: all var(--transition);
}

.map-placeholder svg {
    color: var(--red);
    opacity: 0.5;
}

.map-placeholder p {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-700);
    letter-spacing: 1px;
}

.map-placeholder span {
    font-size: 12px;
    color: var(--gray-400);
}

/* 反馈卡片可点击 */
.feedback-card {
    cursor: pointer;
}

/* ============================================================
   通用：更多按钮 & 文本按钮
   ============================================================ */
.section-more {
    text-align: center;
    margin-top: 48px;
}

.btn-text {
    display: inline-block;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--red);
    transition: all var(--transition);
    border: none;
    background: none;
    padding: 0;
}

.btn-text:hover {
    color: var(--red-dark);
    padding-left: 6px;
}

/* ============================================================
   新闻动态
   ============================================================ */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
    transition: all var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(196, 30, 58, 0.3);
    transform: translateY(-4px);
}

.news-card-date {
    font-family: var(--font-en);
    font-size: 13px;
    color: var(--red);
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.news-card h3 {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: 10px;
    color: var(--white);
}

.news-card p {
    font-size: 14px;
    color: rgba(255,255,255,0.55);
    line-height: 1.7;
    flex: 1;
}

.news-card .news-tag {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 1px;
    padding: 4px 12px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 2px;
    color: rgba(255,255,255,0.6);
    margin-top: 16px;
    align-self: flex-start;
}

/* ============================================================
   招贤纳士
   ============================================================ */
.careers-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.career-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition);
}

.career-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(196, 30, 58, 0.3);
    transform: translateY(-4px);
}

.career-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--white);
    letter-spacing: 1px;
}

.career-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}

.career-meta span {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    display: flex;
    align-items: center;
    gap: 6px;
}

.career-meta .meta-dot {
    width: 4px;
    height: 4px;
    background: var(--red);
    border-radius: 50%;
    display: inline-block;
}

.career-card .career-desc {
    font-size: 13px;
    color: rgba(255,255,255,0.45);
    line-height: 1.7;
}

.careers-cta {
    text-align: center;
    background: rgba(196, 30, 58, 0.06);
    border: 1px solid rgba(196, 30, 58, 0.15);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.careers-cta p {
    font-size: 15px;
    color: rgba(255,255,255,0.7);
    margin-bottom: 18px;
    letter-spacing: 1px;
}

.careers-cta .btn {
    display: inline-block;
}

/* ============================================================
   详情页通用样式 (about / services / news-list / news-detail / cases-list / case-detail)
   ============================================================ */
.page-banner {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1a1e 50%, #1a1a1a 100%);
    padding: 140px 0 70px;
    text-align: center;
    color: var(--white);
}

.page-banner h1 {
    font-size: 42px;
    font-weight: 900;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.page-banner .page-banner-sub {
    font-family: var(--font-en);
    font-size: 13px;
    letter-spacing: 5px;
    color: var(--red);
    text-transform: uppercase;
}

.page-content {
    padding: 80px 0;
}

.page-content .container {
    max-width: 860px;
}

.page-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 40px 0 16px;
    letter-spacing: 1px;
}

.page-content h2:first-child {
    margin-top: 0;
}

.page-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 32px 0 12px;
}

.page-content p {
    font-size: 15px;
    color: var(--gray-700);
    line-height: 2;
    margin-bottom: 16px;
}

.page-content blockquote {
    border-left: 3px solid var(--red);
    padding: 12px 20px;
    margin: 24px 0;
    background: var(--gray-50);
    font-style: italic;
    color: var(--gray-700);
}

.page-content img {
    max-width: 100%;
    border-radius: var(--radius-lg);
    margin: 24px 0;
}

/* 价值观卡片 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 32px 0;
}

.value-card {
    text-align: center;
    padding: 30px 20px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.value-card:hover {
    border-color: var(--red);
    box-shadow: var(--shadow-md);
}

.value-card .value-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.value-card strong {
    display: block;
    font-size: 16px;
    letter-spacing: 2px;
}

/* 服务详情 */
.service-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 32px 0;
}

.service-detail-card {
    padding: 40px 28px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.service-detail-card:hover {
    border-color: var(--red);
    box-shadow: var(--shadow-lg);
}

.service-detail-card h3 {
    font-size: 20px;
    margin: 0 0 8px;
    color: var(--red);
}

.service-detail-card h3 + p {
    font-size: 12px;
    font-family: var(--font-en);
    letter-spacing: 2px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

/* 案例列表 */
.cases-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.case-card-link {
    display: block;
    color: inherit;
}

/* 新闻列表 */
.news-list-item {
    display: flex;
    gap: 30px;
    padding: 30px 0;
    border-bottom: 1px solid var(--gray-200);
    transition: all var(--transition);
    cursor: pointer;
}

.news-list-item:hover {
    padding-left: 10px;
}

.news-list-date {
    flex-shrink: 0;
    width: 80px;
    text-align: center;
}

.news-list-date .day {
    display: block;
    font-size: 36px;
    font-weight: 900;
    color: var(--red);
    font-family: var(--font-en);
    line-height: 1;
}

.news-list-date .month-year {
    font-size: 12px;
    color: var(--gray-500);
    letter-spacing: 1px;
    margin-top: 4px;
}

.news-list-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.5;
}

.news-list-body p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.7;
    margin: 0;
}

.news-list-body .news-tag-sm {
    display: inline-block;
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--red);
    margin-top: 8px;
}

/* 文章详情 */
.article-header {
    margin-bottom: 40px;
}

.article-meta {
    display: flex;
    gap: 20px;
    align-items: center;
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 12px;
}

.article-meta .article-cat {
    color: var(--red);
    font-weight: 600;
    letter-spacing: 1px;
}

.article-body {
    font-size: 15px;
    line-height: 2;
    color: var(--gray-800);
}

.article-body p {
    margin-bottom: 18px;
}

.article-body h2 {
    font-size: 24px;
    margin: 36px 0 16px;
}

.article-body h3 {
    font-size: 18px;
    margin: 28px 0 12px;
}

.article-back {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

/* ============================================================
   后台管理样式
   ============================================================ */
.admin-body {
    background: var(--gray-100);
}

.admin-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1a1e 100%);
}

.admin-login-box {
    background: var(--white);
    padding: 48px 40px;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl);
}

.admin-login-box h1 {
    text-align: center;
    font-size: 24px;
    font-weight: 900;
    letter-spacing: 3px;
    margin-bottom: 8px;
    color: var(--black);
}

.admin-login-box .login-sub {
    text-align: center;
    font-size: 12px;
    letter-spacing: 2px;
    color: var(--gray-500);
    margin-bottom: 36px;
    font-family: var(--font-en);
}

.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--black);
    color: var(--white);
    padding: 30px 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 100;
}

.admin-sidebar-header {
    padding: 0 24px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    margin-bottom: 24px;
}

.admin-sidebar-header h2 {
    font-size: 18px;
    letter-spacing: 2px;
    font-weight: 700;
}

.admin-sidebar-header span {
    font-size: 10px;
    font-family: var(--font-en);
    letter-spacing: 2px;
    color: var(--red);
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    font-size: 14px;
    color: rgba(255,255,255,0.65);
    letter-spacing: 1px;
    transition: all var(--transition);
    border-left: 3px solid transparent;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: rgba(255,255,255,0.04);
    color: var(--white);
    border-left-color: var(--red);
}

.admin-nav a .nav-icon {
    width: 18px;
    text-align: center;
    font-size: 16px;
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    padding: 30px 40px;
}

.admin-topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-200);
}

.admin-topbar h3 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
}

.admin-topbar .btn {
    font-size: 13px;
    padding: 10px 24px;
    letter-spacing: 1px;
}

.admin-panel {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.admin-panel h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 1px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--gray-200);
}

.admin-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.admin-form label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 6px;
    color: var(--black);
}

.admin-form input,
.admin-form textarea,
.admin-form select {
    width: 100%;
    padding: 11px 14px;
    font-size: 14px;
    font-family: var(--font-cn);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    transition: all var(--transition);
    outline: none;
}

.admin-form input:focus,
.admin-form textarea:focus,
.admin-form select:focus {
    border-color: var(--red);
    box-shadow: 0 0 0 3px rgba(196,30,58,0.06);
}

.admin-form textarea {
    resize: vertical;
    min-height: 120px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
    font-size: 14px;
}

.admin-table th {
    font-weight: 600;
    letter-spacing: 1px;
    background: var(--gray-50);
    font-size: 13px;
    color: var(--gray-700);
}

.admin-table tr:hover td {
    background: var(--gray-50);
}

.admin-table .btn-sm {
    padding: 5px 14px;
    font-size: 12px;
    letter-spacing: 1px;
    margin-right: 6px;
}

.admin-table .btn-sm.danger {
    background: transparent;
    color: var(--red);
    border: 1px solid var(--red);
}

.admin-table .btn-sm.danger:hover {
    background: var(--red);
    color: var(--white);
}

.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 2px;
    font-size: 11px;
    letter-spacing: 1px;
}

.status-badge.published {
    background: #e8f5e9;
    color: #2e7d32;
}

.status-badge.draft {
    background: #fff3e0;
    color: #e65100;
}

.admin-toast {
    position: fixed;
    top: 24px;
    right: 24px;
    padding: 14px 24px;
    border-radius: var(--radius);
    color: var(--white);
    font-size: 14px;
    letter-spacing: 1px;
    z-index: 9999;
    animation: fadeUp 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.admin-toast.success { background: #2e7d32; }
.admin-toast.error { background: #c62828; }

/* 模态框 */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 60px;
    overflow-y: auto;
}

.modal-box {
    background: var(--white);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 700px;
    padding: 40px;
    margin-bottom: 60px;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.modal-box h3 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 20px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-500);
    transition: color var(--transition);
}

.modal-close:hover { color: var(--black); }

/* ============================================================
   响应式设计
   ============================================================ */
@media (max-width: 1024px) {
    .section {
        padding: 80px 0;
    }

    .section-title {
        font-size: 34px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .about-img-accent {
        width: 120px;
        height: 120px;
        bottom: -16px;
        left: -16px;
    }

    .about-badge {
        right: -16px;
        top: 16px;
        padding: 14px 18px;
    }

    .about-badge strong {
        font-size: 26px;
    }

    .services-grid {
        grid-template-columns: 1fr 1fr;
    }

    .service-card.featured {
        grid-column: span 2;
    }

    .cases-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .clients-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .careers-grid {
        grid-template-columns: 1fr;
    }

    .service-detail-grid {
        grid-template-columns: 1fr 1fr;
    }

    .cases-list {
        grid-template-columns: 1fr 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }

    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 28px;
        letter-spacing: 1px;
    }

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

    /* 移动端导航 */
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(26, 26, 26, 0.98);
        backdrop-filter: blur(16px);
        padding: 100px 40px 40px;
        transition: right var(--transition);
        z-index: 999;
    }

    .nav.open {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        gap: 28px;
    }

    .nav-link {
        font-size: 18px;
    }

    .menu-toggle {
        display: flex;
    }

    /* Hero */
    .hero {
        min-height: 600px;
    }

    .hero-tagline {
        letter-spacing: 4px;
        font-size: 12px;
    }

    .hero-btns {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }

    /* About */
    .about-numbers {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-img-accent {
        display: none;
    }

    .about-badge {
        right: 0;
        top: 12px;
    }

    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card.featured {
        grid-column: span 1;
    }

    /* Cases */
    .cases-grid {
        grid-template-columns: 1fr;
    }

    /* Clients */
    .clients-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .client-item {
        padding: 22px 12px;
    }

    .client-item span {
        font-size: 14px;
        letter-spacing: 1px;
    }

    /* News */
    .news-grid {
        grid-template-columns: 1fr;
    }

    .news-list-item {
        flex-direction: column;
        gap: 12px;
    }

    .news-list-date {
        width: auto;
        text-align: left;
        display: flex;
        align-items: baseline;
        gap: 10px;
    }

    .news-list-date .day {
        font-size: 24px;
    }

    /* Careers */
    .careers-grid {
        grid-template-columns: 1fr;
    }

    /* Services */
    .service-detail-grid {
        grid-template-columns: 1fr;
    }

    /* Showcase */
    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .showcase-placeholder {
        aspect-ratio: 16 / 9;
    }

    /* About tabs */
    .about-tabs {
        flex-direction: column;
        gap: 0;
        border-bottom: none;
    }

    .about-tab {
        border-bottom: 1px solid rgba(255,255,255,0.08);
        text-align: left;
        padding: 14px 0;
    }

    .about-tab::after {
        display: none;
    }

    .about-tab.active {
        color: var(--red);
    }

    /* Feedback */
    .feedback-grid {
        grid-template-columns: 1fr;
    }

    /* FAQ */
    .faq-grid {
        grid-template-columns: 1fr;
    }

    /* Map */
    .map-placeholder {
        aspect-ratio: 16 / 5;
        max-height: 180px;
    }

    /* Careers */
    .careers-summary {
        padding: 32px 24px;
    }

    /* Cases */
    .cases-list {
        grid-template-columns: 1fr;
    }

    /* Values */
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Admin */
    .admin-sidebar {
        width: 200px;
    }

    .admin-main {
        margin-left: 200px;
        padding: 16px;
    }

    .admin-form .form-row {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .contact-form {
        padding: 28px 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-brand {
        text-align: center;
    }

    .logo-footer {
        justify-content: center;
    }

    .footer-links,
    .footer-qr {
        text-align: center;
    }

    .qr-placeholder {
        margin: 0 auto 10px;
    }
}

@media (max-width: 480px) {
    .about-numbers {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .about-number-item .num {
        font-size: 28px;
    }

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

    .news-grid,
    .careers-grid {
        grid-template-columns: 1fr;
    }

    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-tab {
        padding: 12px 18px;
        font-size: 13px;
        letter-spacing: 1px;
    }

    .feedback-grid {
        grid-template-columns: 1fr;
    }

    .faq-grid {
        grid-template-columns: 1fr 1fr;
    }

    .map-placeholder {
        aspect-ratio: 16 / 4;
        max-height: 200px;
    }

    .service-detail-grid {
        grid-template-columns: 1fr;
    }

    .cases-list {
        grid-template-columns: 1fr 1fr;
    }

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

    .admin-sidebar {
        width: 220px;
    }

    .admin-main {
        margin-left: 220px;
        padding: 20px;
    }

    .hero-content {
        padding: 0 16px;
    }
}