/* ============================================================
   OLG MEDIA 欧兰格 — 主样式表
   品牌设计 · 策划 · 推广
   ============================================================ */

/* ---------- 字体引用 ---------- */
@font-face {
    font-family: 'NotoSerifCJKsc-Bold';
    src: url('../fonts/NotoSerifCJKsc-Bold.otf') format('opentype');
    font-display: swap;
}
@font-face {
    font-family: 'Alibaba-PuHuiTi-Bold';
    src: url('../fonts/Alibaba-PuHuiTi-Bold.otf') format('opentype');
    font-display: swap;
}
@font-face {
    font-family: 'NotoSansHans-Regular';
    src: url('../fonts/NotoSansHans-Regular.otf') format('opentype');
    font-display: swap;
}

/* ---------- CSS 变量 ---------- */
:root {
    --yellow: #FFF100;
    --dark:   #181818;
    --light:  #f8f8f6;
    --gray:   #f0f0ec;
    --text-dark:    #f2f2f0;
    --text-light:   #1a1a1a;
    --muted-dark:   #888;
    --muted-light:  #777;
    --border-light: #e0e0da;
    --border-dark:  #2e2e2e;
    --nav-h: 72px;
    --max-w: 1440px;
    --pad-x: 80px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'NotoSansHans-Regular', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: var(--dark);
    color: var(--text-dark);
    line-height: 1.85;
    overflow-x: hidden;
    width: 100%;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

/* ---------- 容器 ---------- */
.container {
    max-width: var(--max-w);
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--pad-x);
}

/* ---------- 排版 ---------- */
h1, h2, h3, h4 {
    font-family: 'NotoSerifCJKsc-Bold', 'Noto Serif CJK SC', serif;
    font-weight: bold;
    line-height: 1.25;
    letter-spacing: -0.01em;
}

h1 { font-size: clamp(44px, 6.5vw, 96px); }
h2 { font-size: clamp(30px, 3.8vw, 56px); }
h3 { font-size: clamp(20px, 2vw, 28px); }
h4 { font-size: 18px; }

p { font-size: 16px; line-height: 1.9; }

.label-tag {
    font-size: 12px;
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--yellow);
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.label-tag::before {
    content: '';
    width: 36px;
    height: 1px;
    background: var(--yellow);
    flex-shrink: 0;
}

/* 浅色背景变体 */
.label-tag-light {
    font-size: 12px;
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--muted-light);
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
}

.label-tag-light::before {
    content: '';
    width: 36px;
    height: 1px;
    background: var(--muted-light);
    flex-shrink: 0;
}

.num-font {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
}

/* ---------- 导航栏 ---------- */
.navbar {
    position: sticky;
    top: 0;
    z-index: 900;
    height: var(--nav-h);
    background-color: var(--yellow);
    display: flex;
    align-items: center;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: 20px;
    color: var(--text-light);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    line-height: 1;
}

.nav-logo span {
    font-size: 12px;
    letter-spacing: 0.08em;
    display: block;
    margin-top: 3px;
    opacity: 0.55;
}

.nav-links {
    display: flex;
    gap: 52px;
    align-items: center;
}

.nav-links a {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-light);
    opacity: 0.8;
    transition: opacity 0.2s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--text-light);
    transition: width 0.25s;
}

.nav-links a:hover,
.nav-links a.active {
    opacity: 1;
}

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

/* 汉堡菜单 */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 6px;
    width: 36px;
    height: 36px;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-light);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.nav-toggle.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 页脚 ---------- */
.footer {
    background-color: var(--yellow);
    padding: 56px 0;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 30px;
}

.footer-brand {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: 22px;
    color: var(--text-light);
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.footer-tagline {
    font-size: 13px;
    color: rgba(0, 0, 0, 0.45);
    letter-spacing: 0.04em;
    margin-bottom: 4px;
}

.footer-copy {
    font-size: 12px;
    color: rgba(0, 0, 0, 0.38);
    letter-spacing: 0.03em;
}

.footer-right {
    text-align: right;
}

.footer-right p {
    font-size: 13px;
    color: rgba(0, 0, 0, 0.45);
    margin-bottom: 4px;
}

/* ---------- 通用区块背景 ---------- */
.bg-dark  { background-color: var(--dark);  color: var(--text-dark); }
.bg-light { background-color: var(--light); color: var(--text-light); }
.bg-gray  { background-color: var(--gray);  color: var(--text-light); }
.bg-yellow{ background-color: var(--yellow); color: var(--text-light); }

/* ---------- 首页 Hero ---------- */
.hero {
    min-height: calc(100vh - var(--nav-h));
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background-color: var(--dark);
}

.hero::before {
    content: 'OLG';
    position: absolute;
    right: -2vw;
    top: 50%;
    transform: translateY(-50%);
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: 28vw;
    color: rgba(255,255,255,0.025);
    line-height: 1;
    pointer-events: none;
    user-select: none;
}

.hero-content {
    padding: 130px 0;
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-title {
    color: var(--text-dark);
    margin-bottom: 36px;
    line-height: 1.12;
}

.hero-title em {
    font-style: normal;
    color: var(--yellow);
}

.hero-sub {
    font-size: clamp(12px, 1.2vw, 15px);
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--muted-dark);
    display: flex;
    align-items: center;
    gap: 20px;
}

.hero-sub::before {
    content: '';
    width: 48px;
    height: 1px;
    background: var(--muted-dark);
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 56px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-light);
    background: var(--yellow);
    padding: 16px 36px;
    transition: background 0.25s, transform 0.2s;
}

.hero-cta:hover {
    background: #ffe800;
    transform: translateX(4px);
}

.hero-cta i {
    font-size: 16px;
    transition: transform 0.2s;
}

.hero-cta:hover i {
    transform: translateX(4px);
}

/* ---------- 数据统计区 ---------- */
.stats-wrap {
    padding: 0;
    overflow-x: auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-bottom: 1px solid var(--border-light);
    border-left: 1px solid var(--border-light);
}

.stat-cell {
    padding: 52px 48px;
    border-right: 1px solid var(--border-light);
    border-top: 1px solid var(--border-light);
    transition: background 0.3s;
}

.stat-cell:hover {
    background-color: #f4f4f0;
}

.stat-num {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: clamp(48px, 5vw, 68px);
    color: var(--dark);
    line-height: 1;
    margin-bottom: 14px;
    letter-spacing: -0.03em;
}

.stat-num em {
    font-style: normal;
    color: var(--yellow);
    /* yellow underline effect */
    text-decoration: underline;
    text-decoration-color: var(--yellow);
    text-underline-offset: 4px;
}

.stat-label {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 5px;
    letter-spacing: 0.02em;
}

.stat-en {
    font-size: 12px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted-light);
}

/* ---------- 案例预览 (首页) ---------- */
.section-wrap {
    padding: 110px 0;
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 64px;
}

.section-head h2 {
    color: inherit;
}

.view-all {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--yellow);
    display: flex;
    align-items: center;
    gap: 8px;
    opacity: 0.9;
    transition: opacity 0.2s;
    flex-shrink: 0;
    padding-bottom: 4px;
}

.view-all:hover {
    opacity: 1;
}

/* 3列案例卡片 */
.cards-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* 2列案例卡片 */
.cards-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.case-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: #111;
}

.case-card-img {
    width: 100%;
    height: 440px;
    object-fit: cover;
    transition: transform 0.7s ease, opacity 0.4s ease;
    opacity: 0.72;
}

.case-card:hover .case-card-img {
    transform: scale(1.05);
    opacity: 0.88;
}

.case-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 60px 28px 28px;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
}

.case-card-cat {
    font-size: 11px;
    letter-spacing: 0.22em;
    color: var(--yellow);
    text-transform: uppercase;
    margin-bottom: 8px;
}

.case-card-name {
    font-family: 'NotoSerifCJKsc-Bold', serif;
    font-size: 20px;
    color: #fff;
    line-height: 1.35;
}

/* ---------- 客户LOGO区 ---------- */
.clients-wrap {
    padding: 100px 0;
}

.clients-desc {
    font-size: 15px;
    color: var(--muted-light);
    max-width: 320px;
    text-align: right;
    line-height: 1.8;
}

/* ---------- 品牌主张区块 ---------- */
.philosophy-section {
    padding: 100px 0;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.philosophy-label {
    font-size: 13px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    opacity: 0.5;
    margin-bottom: 24px;
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
}

.philosophy-title {
    font-size: clamp(32px, 4vw, 58px);
    line-height: 1.2;
    color: var(--text-light);
    margin-bottom: 32px;
}

.philosophy-desc {
    font-size: 16px;
    color: rgba(0,0,0,0.55);
    line-height: 2;
    max-width: 480px;
}

.philosophy-cards {
    display: flex;
    flex-direction: column;
    gap: 2px;
    background: rgba(0,0,0,0.08);
}

.philosophy-card {
    background: var(--yellow);
    padding: 40px 44px;
}

.philosophy-card-title {
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    opacity: 0.5;
    margin-bottom: 10px;
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
}

.philosophy-card-desc {
    font-size: 15px;
    color: rgba(0,0,0,0.6);
    line-height: 1.85;
}

/* ---------- 关于预告区块 ---------- */
.about-preview-section {
    padding: 100px 0;
    border-top: 1px solid var(--border-dark);
}

.about-preview {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 40px;
}

.about-preview-title {
    color: var(--text-dark);
    max-width: 540px;
    line-height: 1.2;
}

.about-preview-text {
    text-align: right;
    max-width: 440px;
}

.about-preview-text p {
    font-size: 16px;
    color: var(--muted-dark);
    line-height: 2;
    margin-bottom: 32px;
}

.about-preview-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--yellow);
    border-bottom: 1px solid rgba(255,241,0,0.4);
    padding-bottom: 4px;
    transition: opacity 0.2s;
}

.about-preview-link:hover {
    opacity: 0.8;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    border-top: 1px solid var(--border-light);
    border-left: 1px solid var(--border-light);
    margin-top: 56px;
}

.client-box {
    border-right: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: 17px;
    color: #bbb;
    letter-spacing: 0.08em;
    transition: background 0.25s, color 0.25s;
    cursor: default;
}

.client-box:hover {
    background: #f5f5f2;
    color: #333;
}

/* ---------- 案例页 Hero ---------- */
.page-hero {
    background-color: var(--yellow);
    padding: 96px 0 80px;
}

/* 服务能力展示条 */
.services-bar-section {
    padding: 80px 0;
}

.services-bar-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    background: rgba(0,0,0,0.1);
}

.services-bar-item {
    background: var(--yellow);
    padding: 40px 36px;
    text-align: center;
}

.services-bar-item i {
    font-size: 36px;
    color: rgba(0,0,0,0.4);
    margin-bottom: 14px;
    display: block;
}

.services-bar-title {
    font-family: 'NotoSerifCJKsc-Bold', serif;
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.services-bar-en {
    font-size: 13px;
    color: rgba(0,0,0,0.45);
}

/* CTA 区块 */
.cta-section {
    padding: 100px 0;
    text-align: center;
    border-top: 1px solid var(--border-dark);
}

.cta-content {
    max-width: 680px;
    margin: 0 auto;
}

.cta-label {
    justify-content: center;
}

.cta-title {
    color: var(--text-dark);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.25;
}

.cta-desc {
    color: var(--muted-dark);
    font-size: 16px;
    max-width: 480px;
    margin: 0 auto 48px;
    line-height: 1.85;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-light);
    background: var(--yellow);
    padding: 18px 44px;
    transition: background 0.25s;
}

.cta-btn:hover {
    background: #ffe800;
}

.page-hero-inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 40px;
}

.page-hero h1 {
    color: var(--text-light);
}

.page-hero-desc {
    font-size: 16px;
    color: rgba(0,0,0,0.5);
    max-width: 380px;
    text-align: right;
    line-height: 1.8;
}

/* 案例全列表 */
.cases-section {
    padding: 80px 0 120px;
}

.case-full-card {
    cursor: pointer;
}

.case-full-img-wrap {
    overflow: hidden;
    margin-bottom: 22px;
}

.case-full-img {
    width: 100%;
    height: 520px;
    object-fit: cover;
    display: block;
    transition: transform 0.7s ease, opacity 0.4s;
}

.case-full-card:hover .case-full-img {
    transform: scale(1.04);
    opacity: 0.88;
}

.case-full-cat {
    font-size: 11px;
    letter-spacing: 0.22em;
    color: var(--yellow);
    text-transform: uppercase;
    margin-bottom: 10px;
}

.case-full-name {
    font-family: 'NotoSerifCJKsc-Bold', serif;
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.35;
}

.case-full-desc {
    font-size: 14px;
    color: var(--muted-dark);
    line-height: 1.85;
}

/* ---------- 关于页 Hero ---------- */
.about-hero {
    padding: 140px 0 130px;
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '16';
    position: absolute;
    right: -1vw;
    bottom: -4vw;
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: 32vw;
    color: rgba(255,255,255,0.03);
    line-height: 1;
    pointer-events: none;
    user-select: none;
}

.about-hero-content {
    position: relative;
    z-index: 1;
    max-width: 860px;
}

.about-hero h1 {
    color: var(--text-dark);
    margin-bottom: 44px;
    line-height: 1.12;
}

.about-lead {
    font-size: clamp(16px, 1.6vw, 22px);
    color: var(--muted-dark);
    max-width: 660px;
    line-height: 1.85;
}

/* 关于页 数据统计 */
.about-stats {
    padding: 80px 0;
}

.about-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border-left: 1px solid var(--border-dark);
}

.about-stat-cell {
    padding: 48px 40px;
    border-right: 1px solid var(--border-dark);
    border-top: 1px solid var(--border-dark);
    border-bottom: 1px solid var(--border-dark);
}

.about-stat-num {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: clamp(44px, 4.5vw, 60px);
    color: var(--yellow);
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: -0.03em;
}

.about-stat-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.about-stat-en {
    font-size: 12px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted-dark);
}

/* 三大理念 */
.values-section {
    padding: 100px 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--border-light);
    margin-top: 64px;
}

.value-card {
    background: var(--light);
    padding: 60px 52px;
}

.value-index {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: 80px;
    color: var(--border-light);
    line-height: 1;
    margin-bottom: 24px;
}

.value-title {
    font-family: 'NotoSerifCJKsc-Bold', serif;
    font-size: 32px;
    color: var(--text-light);
    margin-bottom: 20px;
}

.value-title em {
    font-style: normal;
    display: block;
    font-size: 13px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted-light);
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    margin-bottom: 8px;
}

.value-desc {
    font-size: 15px;
    color: var(--muted-light);
    line-height: 2;
}

/* 团队介绍 */
.team-section {
    padding: 0 0 100px;
}

.team-img-wrap {
    width: 100%;
    overflow: hidden;
    margin-bottom: 60px;
}

.team-img {
    width: 100%;
    height: 560px;
    object-fit: cover;
    filter: grayscale(100%);
    transition: filter 0.6s;
}

.team-img:hover {
    filter: grayscale(20%);
}

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

.team-title {
    font-size: clamp(28px, 3.2vw, 48px);
    color: var(--text-light);
    margin-bottom: 28px;
}

.team-desc {
    font-size: 16px;
    color: var(--muted-light);
    line-height: 2;
}

.team-values {
    padding-top: 8px;
}

.team-value-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border-light);
}

.team-value-item:first-child {
    border-top: 1px solid var(--border-light);
}

.team-value-num {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: 14px;
    color: var(--yellow);
    background: var(--text-light);
    padding: 2px 8px;
    flex-shrink: 0;
    margin-top: 3px;
}

.team-value-text {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 600;
}

/* 服务内容 */
.services-section {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    background: var(--border-light);
    margin-top: 64px;
}

.service-card {
    background: #fff;
    padding: 52px 52px 56px;
}

.service-num {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: 12px;
    letter-spacing: 0.12em;
    color: var(--yellow);
    background: var(--text-light);
    display: inline-block;
    padding: 3px 10px;
    margin-bottom: 28px;
}

.service-title {
    font-family: 'NotoSerifCJKsc-Bold', serif;
    font-size: 28px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.3;
}

.service-desc {
    font-size: 15px;
    color: var(--muted-light);
    line-height: 2;
}

/* 专注领域 */
.focus-section {
    padding: 100px 0;
    background: var(--dark);
}

/* 联系区块 */
.contact-section {
    padding: 110px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.contact-title {
    color: var(--text-dark);
    line-height: 1.2;
    margin-bottom: 28px;
}

.contact-desc {
    font-size: 16px;
    color: var(--muted-dark);
    line-height: 2;
    max-width: 440px;
}

.contact-card {
    border: 1px solid var(--border-dark);
    padding: 56px 52px;
}

.contact-card-item {
    margin-bottom: 36px;
}

.contact-card-item:last-of-type {
    margin-bottom: 44px;
}

.contact-card-label {
    font-size: 12px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted-dark);
    margin-bottom: 10px;
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
}

.contact-card-value {
    font-size: 18px;
    color: var(--text-dark);
    font-weight: 600;
}

.contact-card-qr {
    width: 140px;
    height: 140px;
    background: rgba(255,255,255,0.06);
    border: 1px solid var(--border-dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-card-qr i {
    font-size: 60px;
    color: var(--muted-dark);
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-light);
    background: var(--yellow);
    padding: 16px 36px;
    transition: background 0.25s;
}

.contact-btn:hover {
    background: #ffe800;
}

.focus-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.focus-text h2 {
    color: var(--text-dark);
    margin-bottom: 28px;
}

.focus-text p {
    font-size: 16px;
    color: var(--muted-dark);
    line-height: 2;
    margin-bottom: 16px;
}

.focus-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
}

.focus-tag {
    font-size: 13px;
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    letter-spacing: 0.06em;
    border: 1px solid rgba(255,255,255,0.18);
    color: var(--muted-dark);
    padding: 8px 18px;
    transition: border-color 0.25s, color 0.25s;
}

.focus-tag:hover {
    border-color: var(--yellow);
    color: var(--yellow);
}

.focus-percent-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border-dark);
    border: 1px solid var(--border-dark);
}

.focus-percent-cell {
    background: var(--dark);
    padding: 44px 40px;
}

.focus-percent-num {
    font-family: 'Alibaba-PuHuiTi-Bold', sans-serif;
    font-size: clamp(40px, 4vw, 56px);
    color: var(--yellow);
    line-height: 1;
    margin-bottom: 10px;
}

.focus-percent-label {
    font-size: 15px;
    color: var(--text-dark);
    margin-bottom: 4px;
    font-weight: 600;
}

.focus-percent-desc {
    font-size: 13px;
    color: var(--muted-dark);
    line-height: 1.7;
}

/* ---------- 响应式：平板端 1024px ---------- */
@media (max-width: 1200px) {
    :root {
        --pad-x: 50px;
    }

    /* 品牌主张平板端 */
    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .philosophy-desc {
        max-width: 100%;
    }

    /* 关于预告平板端 */
    .about-preview {
        flex-direction: column;
        align-items: flex-start;
        gap: 32px;
    }

    .about-preview-title {
        max-width: 100%;
    }

    .about-preview-text {
        text-align: left;
        max-width: 100%;
    }

    .clients-desc {
        text-align: left;
        max-width: 100%;
    }

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

    .cards-3 {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .focus-inner {
        grid-template-columns: 1fr;
        gap: 60px;
    }

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

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

    .page-hero-inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-hero-desc {
        text-align: left;
    }

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

    .philosophy-section,
    .about-preview-section {
        padding: 60px 0;
    }

    /* 服务能力条 */
    .services-bar-section {
        padding: 60px 0;
    }

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

    .services-bar-item {
        padding: 32px 24px;
    }

    .services-bar-title {
        font-size: 18px;
    }

    /* CTA */
    .cta-section {
        padding: 60px 0;
    }

    .cta-title {
        font-size: clamp(24px, 4vw, 36px);
    }

    .cta-desc {
        margin-bottom: 32px;
    }

    /* 联系区块平板端 */
    .contact-section {
        padding: 60px 0;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .contact-card {
        padding: 36px 28px;
    }
}

/* ---------- 响应式：手机端 768px ---------- */
@media (max-width: 768px) {
    :root {
        --pad-x: 22px;
        --nav-h: 64px;
    }

    /* 确保无黑边 */
    html, body {
        width: 100%;
        max-width: 100%;
        overflow-x: hidden;
    }

    /* Nav 移动端 */
    .nav-links {
        display: none;
        position: fixed;
        top: var(--nav-h);
        left: 0;
        right: 0;
        background: var(--yellow);
        flex-direction: column;
        gap: 0;
        padding: 12px 0;
        box-shadow: 0 12px 30px rgba(0,0,0,0.15);
        z-index: 899;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: 18px 26px;
        font-size: 16px;
        border-bottom: 1px solid rgba(0,0,0,0.07);
        letter-spacing: 0.05em;
    }

    .nav-links a::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding: 60px 0 80px;
    }

    .hero-content {
        padding: 0;
    }

    .hero::before {
        font-size: 45vw;
        right: -8vw;
    }

    .hero-sub {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .hero-sub::before {
        display: none;
    }

    .hero-cta {
        margin-top: 42px;
        padding: 14px 28px;
        font-size: 13px;
        width: 100%;
        justify-content: center;
    }

    /* 品牌主张 - 改为上下布局 */
    .philosophy-grid {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
    }

    .philosophy-cards {
        flex-direction: column;
    }

    /* 关于预告 - 改为上下布局 */
    .about-preview {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 32px !important;
    }

    .about-preview-text {
        text-align: left !important;
        max-width: 100% !important;
    }

    /* 服务客户描述 */
    .clients-desc {
        text-align: left !important;
        max-width: 100% !important;
    }

    /* Stats */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        min-width: 0;
    }

    .stat-cell {
        padding: 28px 20px;
    }

    .stat-num {
        font-size: 36px;
    }

    .stat-label {
        font-size: 14px;
    }

    /* Case cards */
    .cards-3,
    .cards-2 {
        grid-template-columns: 1fr;
    }

    .case-card-img {
        height: 260px;
    }

    .case-full-img {
        height: 220px;
    }

    /* Clients */
    .clients-wrap {
        padding: 60px 0;
    }

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
        margin-top: 36px;
    }

    .client-box {
        height: 80px;
        font-size: 12px;
    }

    /* Section wrap */
    .section-wrap {
        padding: 60px 0;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        margin-bottom: 36px;
    }

    .view-all {
        align-self: flex-start;
    }

    /* Footer */
    .footer {
        padding: 40px 0;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .footer-right {
        text-align: left;
    }

    /* About */
    .about-hero {
        padding: 60px 0 70px;
    }

    .about-hero h1 {
        font-size: clamp(32px, 8vw, 48px);
    }

    .about-lead {
        font-size: 16px;
    }

    .about-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        min-width: 0;
    }

    .about-stat-cell {
        padding: 24px 18px;
    }

    .about-stat-num {
        font-size: 36px;
    }

    .about-stat-label {
        font-size: 13px;
    }

    .values-grid {
        grid-template-columns: 1fr;
        gap: 2px;
    }

    .value-card {
        padding: 36px 24px;
    }

    .value-index {
        font-size: 48px;
    }

    .value-title {
        font-size: 26px;
    }

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

    .service-card {
        padding: 32px 24px 36px;
    }

    .service-title {
        font-size: 24px;
    }

    .team-img {
        height: 240px;
    }

    .team-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .team-title {
        font-size: 28px;
    }

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

    .focus-percent-wrap {
        grid-template-columns: 1fr 1fr;
    }

    .focus-percent-cell {
        padding: 24px 18px;
    }

    .focus-percent-num {
        font-size: 32px;
    }

    /* Cases page */
    .cases-section {
        padding: 48px 0 60px;
    }

    .page-hero {
        padding: 48px 0 40px;
    }

    .page-hero-inner {
        flex-direction: column;
        gap: 24px;
    }

    .page-hero h1 {
        font-size: clamp(32px, 6vw, 42px);
    }

    .page-hero-desc {
        text-align: left;
        max-width: 100%;
    }

    /* 服务能力展示条 */
    .services-bar-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    /* 联系区块 */
    .contact-grid {
        grid-template-columns: 1fr !important;
        gap: 40px !important;
    }

    .contact-card {
        padding: 32px 24px !important;
    }
}

/* ---------- 响应式：小屏手机 480px ---------- */
@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .about-stats-grid {
        grid-template-columns: 1fr;
    }

    .focus-percent-wrap {
        grid-template-columns: 1fr;
    }
}