/* ===========================
   行舟智远 - 常州行舟智远网络科技有限公司
   企业官网样式表 · 简约大气风格
   =========================== */

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

:root {
    --color-primary: #0c4a6e;
    --color-primary-light: #0e6ba8;
    --color-primary-dark: #082f49;
    --color-teal: #0d9488;
    --color-teal-light: #14b8a6;
    --color-gold: #c8a45c;
    --color-gold-light: #d4b373;
    --color-red: #e0455b;
    --color-white: #ffffff;
    --color-bg: #f8fafc;
    --color-bg-alt: #f1f5f9;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-text-muted: #94a3b8;
    --color-border: #e2e8f0;
    --color-shadow: rgba(12, 74, 110, 0.08);
    --color-shadow-hover: rgba(12, 74, 110, 0.15);

    --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    --font-serif: "Playfair Display", "Noto Serif SC", serif;

    --container-max: 1200px;
    --header-height: 72px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
html, body { max-width: 100%; overflow-x: hidden; }

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-touch-callout: none;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; -webkit-user-drag: none; user-drag: none; pointer-events: auto; }

/* ===== Container ===== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--color-text); }

.section-title { font-size: 2.3rem; font-weight: 700; color: var(--color-primary); margin-bottom: 1rem; }
.section-subtitle { font-size: 1.05rem; color: var(--color-text-light); margin-bottom: 3rem; max-width: 640px; }
.section-header { text-align: center; margin-bottom: 56px; }
.section-header .section-subtitle { margin: 0 auto; }
.section-tag {
    display: inline-block; font-size: 0.85rem; font-weight: 600;
    letter-spacing: 2px; text-transform: uppercase;
    color: var(--color-teal); margin-bottom: 0.8rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 32px; font-size: 1rem; font-weight: 600;
    border-radius: var(--radius-full); border: 2px solid transparent;
    cursor: pointer; transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--color-primary); color: var(--color-white); border-color: var(--color-primary); }
.btn-primary:hover { background: var(--color-primary-light); border-color: var(--color-primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px var(--color-shadow-hover); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: var(--color-white); transform: translateY(-2px); }
.btn-white { background: var(--color-white); color: var(--color-primary); border-color: var(--color-white); }
.btn-white:hover { background: transparent; color: var(--color-white); border-color: var(--color-white); transform: translateY(-2px); }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }

/* ===== Header ===== */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border); z-index: 1000;
    transition: var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 20px var(--color-shadow); }
.nav-container {
    max-width: var(--container-max); height: 100%; margin: 0 auto;
    padding: 0 24px; display: flex; align-items: center; justify-content: space-between;
}
.logo { display: flex; align-items: center; gap: 10px; font-size: 1.4rem; font-weight: 700; color: var(--color-primary); }
.logo-icon {
    width: 42px; height: 42px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-teal) 100%);
    border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
    color: white; font-size: 0.85rem; font-weight: 800; letter-spacing: 0;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.25; }
.logo-text .cn { font-size: 1.1rem; font-weight: 700; }
.logo-text .en { font-size: 0.68rem; color: var(--color-text-muted); letter-spacing: 1.5px; font-weight: 500; }
.logo-img { height: 42px; width: auto; display: block; border-radius: var(--radius-sm); }
.timeline-img { width: 100%; border-radius: var(--radius-sm); margin-top: 12px; box-shadow: 0 2px 8px var(--color-shadow); object-fit: cover; }
.showcase-card {
    overflow: hidden;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 16px var(--color-shadow);
    border: 1px solid var(--color-border);
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
}

.showcase-card .showcase-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    box-shadow: none;
    display: block;
}

.showcase-img { width: 100%; border-radius: var(--radius-md); box-shadow: 0 4px 16px var(--color-shadow); object-fit: cover; }
.showcase-img-sm { max-width: 520px; margin: 0 auto; display: block; }
.showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: stretch;
}
.showcase-card-wide {
    overflow: hidden;
}
.showcase-card-wide {
    overflow: visible;
}
.showcase-card-wide .showcase-img {
    object-fit: contain;
    object-position: left center;
}
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-menu a { padding: 8px 18px; font-size: 0.95rem; font-weight: 500; color: var(--color-text); border-radius: var(--radius-full); position: relative; }
.nav-menu a:hover { color: var(--color-primary); background: var(--color-bg-alt); }
.nav-menu a.active { color: var(--color-primary); font-weight: 600; }
.nav-menu a.active::after {
    content: ''; position: absolute; bottom: -2px; left: 50%; transform: translateX(-50%);
    width: 24px; height: 3px; background: var(--color-teal); border-radius: var(--radius-full);
}
.nav-cta { margin-left: 12px; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; }
.menu-toggle span { width: 24px; height: 2px; background: var(--color-primary); border-radius: 2px; transition: var(--transition); }
.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 ===== */
.hero {
    position: relative;
    padding: calc(var(--header-height) + 76px) 0 60px;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
    text-align: center; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 30% 70%, rgba(13, 148, 136, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(200, 164, 92, 0.1) 0%, transparent 50%);
}
.hero::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 80px;
    background: linear-gradient(to top, var(--color-white), transparent);
}
.hero-content { position: relative; z-index: 2; max-width: 600px; margin: 0 auto; text-align: center; }
.hero-tag {
    display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px;
    background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full); color: var(--color-teal-light);
    font-size: 0.85rem; font-weight: 500; letter-spacing: 1px; margin-bottom: 24px;
    backdrop-filter: blur(5px);
}
.hero-tag::before {
    content: ''; width: 8px; height: 8px; background: var(--color-teal-light);
    border-radius: 50%; box-shadow: 0 0 12px var(--color-teal-light);
}
.hero h1 { font-size: 3.1rem; color: var(--color-white); line-height: 1.25; margin-bottom: 22px; }
.hero h1 .highlight { color: var(--color-gold-light); }
.hero .hero-desc { font-size: 1.12rem; color: rgba(255, 255, 255, 0.85); margin-bottom: 38px; line-height: 1.8; max-width: 600px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; margin-top: 8px; }
.hero-actions .btn-outline { color: var(--color-white); border-color: rgba(255, 255, 255, 0.4); }
.hero-actions .btn-outline:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--color-white); }
.hero-stats {
    display: flex; gap: 16px; margin-top: 12px; margin-bottom: 12px; padding-top: 0;
    flex-wrap: wrap; justify-content: center;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
}
.hero-tagline {
    width: 100%;
    text-align: center;
    color: var(--color-gold-light);
    font-size: clamp(1.35rem, 5.5vw, 2.7rem);
    font-weight: 700;
    letter-spacing: 2px;
    margin-top: 0;
    margin-bottom: 4px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
    line-height: 1.3;
    padding: 0 12px;
    box-sizing: border-box;
}
.hero-stat { color: var(--color-white); }
.hero-stat .num { font-size: 2.1rem; font-weight: 700; color: var(--color-gold-light); font-family: var(--font-serif); line-height: 1.1; }
.hero-stat .label { font-size: 0.85rem; color: rgba(255, 255, 255, 0.7); margin-top: 4px; }

/* ===== Page Banner ===== */
.page-banner {
    position: relative; padding: calc(var(--header-height) + 76px) 0 60px;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 60%, var(--color-primary-light) 100%);
    text-align: center; overflow: hidden;
}
.page-banner::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 30% 70%, rgba(13, 148, 136, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(200, 164, 92, 0.1) 0%, transparent 50%);
}
.page-banner::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 80px;
    background: linear-gradient(to top, var(--color-white), transparent);
}
.page-banner-content { position: relative; z-index: 2; }
.page-banner h1 { font-size: 2.7rem; color: var(--color-white); margin-bottom: 14px; }
.page-banner .breadcrumb { display: flex; justify-content: center; gap: 8px; color: rgba(255, 255, 255, 0.7); font-size: 0.9rem; }
.page-banner .breadcrumb a:hover { color: var(--color-white); }
.page-banner .breadcrumb span { color: var(--color-gold-light); }
.page-banner .pb-desc { color: #ffffff; font-size: 1.05rem; line-height: 1.7; margin-bottom: 18px; text-align: center; }

/* ===== Section Base ===== */
.section { padding: 80px 0; }
.section-alt { background: var(--color-bg); }

/* ===== About Intro ===== */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.about-intro > * { margin-top: 0; }
.about-intro h2 { font-size: 2.2rem; margin-bottom: 22px; color: var(--color-primary); }
.about-intro p { color: var(--color-text-light); margin-bottom: 16px; line-height: 1.9; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 30px; }
.about-feature { display: flex; align-items: flex-start; gap: 12px; }
.about-feature-icon {
    width: 44px; height: 44px; border-radius: var(--radius-sm); background: var(--color-bg-alt);
    display: flex; align-items: center; justify-content: center; color: var(--color-teal);
    font-size: 1.2rem; flex-shrink: 0;
}
.about-feature-text h4 { font-size: 1rem; margin-bottom: 4px; }
.about-feature-text p { font-size: 0.85rem; color: var(--color-text-light); margin: 0; }
.about-visual {
    position: relative; border-radius: var(--radius-lg); overflow: hidden;
    background: #fff;
    display: flex; flex-direction: column; padding: 0;
    box-shadow: 0 20px 60px var(--color-shadow-hover);
    align-self: start;
}
/* about-visual::before removed — was causing blue/teal tint on team photo */
.about-visual-content { position: relative; z-index: 2; text-align: center; color: white; padding: 40px; }
.about-visual-content .big-num { font-size: 4.5rem; font-weight: 800; font-family: var(--font-serif); color: var(--color-gold-light); line-height: 1; }
.about-visual-content .big-label { font-size: 1.1rem; color: rgba(255, 255, 255, 0.9); margin-top: 14px; font-weight: 600; }
.about-visual-content .desc { margin-top: 22px; font-size: 0.9rem; color: rgba(255, 255, 255, 0.65); line-height: 1.8; }

/* ===== Team Photo Wall ===== */
.team-wall-header { position: relative; z-index: 2; text-align: center; margin-bottom: 18px; }
.team-wall-header h3 { color: #fff; font-size: 1.3rem; margin-bottom: 6px; }
.team-wall-header p { color: rgba(255,255,255,0.65); font-size: 0.85rem; margin: 0; }
.team-wall-grid {
    position: relative; z-index: 2;
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
    flex: 1;
}
.team-wall-grid img {
    width: 100%; aspect-ratio: 1; object-fit: cover;
    border-radius: 8px; border: 2px solid rgba(255,255,255,0.15);
    transition: transform 0.3s, border-color 0.3s;
}
.team-wall-grid img:hover { transform: scale(1.05); border-color: var(--color-gold-light); }

/* ===== Team Hero Showcase (Professional group photo) ===== */
.team-hero-showcase {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #fff;
    position: relative;
    z-index: 2;
}
.team-hero-img-wrap {
    position: relative;
    width: 100%;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    box-shadow: none;
    flex-shrink: 0;
}
.team-hero-img-wrap img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease;
}
.team-hero-img-wrap:hover img { transform: scale(1.02); }
.team-hero-info {
    background: #fff;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    padding: 20px 24px;
    text-align: center;
    border: 1px solid var(--color-border);
    border-top: none;
    box-shadow: 0 4px 16px var(--color-shadow);
}
.team-hero-badge {
    display: inline-block;
    padding: 4px 14px;
    border-radius: var(--radius-full);
    background: var(--color-gold);
    color: var(--color-primary-dark);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-bottom: 10px;
}
.team-hero-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--color-primary);
}
.team-hero-subtitle {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 14px;
}
.team-hero-stats {
    display: flex;
    justify-content: center;
    gap: 28px;
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}
.ths-item { text-align: center; }
.ths-num {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}
.ths-label {
    display: block;
    font-size: 0.72rem;
    color: var(--color-text-light);
    margin-top: 2px;
}

/* ===== Photo Wall (16-photo grid) ===== */
.photo-wall {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}
.photo-wall .pw-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 16px var(--color-shadow);
    transition: var(--transition);
    aspect-ratio: 1;
    border: 1px solid var(--color-border);
    background: #ffffff;
}
.photo-wall .pw-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px var(--color-shadow-hover);
}
.photo-wall .pw-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    transition: transform 0.4s ease;
    border-radius: calc(var(--radius-md) - 2px);
}
.photo-wall .pw-item:hover img {
    transform: scale(1.08);
}

/* ===== Doorway Timeline ===== */
.doorway-timeline { margin-top: 32px; }
.doorway-title {
    font-size: 1rem; color: var(--color-primary); margin-bottom: 14px;
    padding-left: 12px; border-left: 3px solid var(--color-gold);
}
.doorway-track {
    display: flex; gap: 10px; overflow-x: auto; padding-bottom: 6px;
}
.doorway-item {
    flex-shrink: 0; width: 120px; text-align: center;
}
.doorway-item img {
    width: 100%; height: 84px; object-fit: cover;
    border-radius: 8px; border: 2px solid var(--color-bg-alt);
    transition: border-color 0.3s;
}
.doorway-item:hover img { border-color: var(--color-gold); }
.doorway-year {
    display: block; font-size: 0.9rem; font-weight: 700;
    color: var(--color-primary); margin-top: 6px;
    font-family: var(--font-serif);
}
.doorway-desc {
    display: block; font-size: 0.72rem; color: var(--color-text-light);
}

/* ===== Operations Team Section ===== */
.ops-team-section { margin-top: 48px; text-align: center; }
.ops-team-title {
    font-size: 1.4rem; color: var(--color-primary); margin-bottom: 24px;
    font-weight: 600;
}
.ops-team-img {
    width: 100%; max-height: 320px; object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px var(--color-shadow);
}

/* ===== Stats ===== */
.stats-section { background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%); padding: 60px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item { color: white; }
.stat-item .num { font-size: 3rem; font-weight: 800; color: var(--color-gold-light); font-family: var(--font-serif); line-height: 1; }
.stat-item .num .suffix { font-size: 1.5rem; }
.stat-item .label { font-size: 1rem; color: rgba(255, 255, 255, 0.75); margin-top: 12px; }
.stat-item .divider { width: 40px; height: 2px; background: var(--color-teal); margin: 12px auto 0; border-radius: 2px; }

/* ===== Service Cards ===== */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card {
    background: var(--color-white); border-radius: var(--radius-lg); padding: 24px 22px;
    box-shadow: 0 4px 20px var(--color-shadow); transition: var(--transition);
    border: 1px solid var(--color-border); position: relative; overflow: hidden;
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-teal));
    transform: scaleX(0); transform-origin: left; transition: var(--transition);
}
.service-card:hover { transform: translateY(-8px); box-shadow: 0 12px 40px var(--color-shadow-hover); border-color: transparent; }
.service-card:hover::before { transform: scaleX(1); }
.service-card h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--color-primary); }
.service-card p { color: var(--color-text-light); font-size: 0.9rem; line-height: 1.6; }
.service-features { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--color-border); }
.service-features li { font-size: 0.85rem; color: var(--color-text-light); padding: 4px 0; display: flex; align-items: center; gap: 8px; }
.service-features li::before { content: ''; width: 6px; height: 6px; background: var(--color-teal); border-radius: 50%; flex-shrink: 0; }

/* ===== Dual Model (双轮驱动) ===== */
.dual-model { display: grid; grid-template-columns: 1fr auto 1fr; gap: 32px; align-items: stretch; }
.model-card {
    background: var(--color-white); border-radius: var(--radius-lg); padding: 40px 36px;
    box-shadow: 0 4px 24px var(--color-shadow); border: 1px solid var(--color-border);
    position: relative; transition: var(--transition);
}
.model-card:hover { box-shadow: 0 12px 40px var(--color-shadow-hover); transform: translateY(-4px); }
.model-card h3 { font-size: 1.4rem; color: var(--color-primary); margin-bottom: 8px; }
.model-card .model-sub { font-size: 0.9rem; color: var(--color-teal); font-weight: 600; margin-bottom: 24px; }
.model-list li { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px dashed var(--color-border); }
.model-list li:last-child { border-bottom: none; }
.model-list .ml-num {
    width: 32px; height: 32px; border-radius: 50%; background: var(--color-bg-alt);
    color: var(--color-primary); display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.9rem; flex-shrink: 0;
}
.model-list .ml-text h5 { font-size: 1rem; margin-bottom: 2px; }
.model-list .ml-text p { font-size: 0.85rem; color: var(--color-text-light); margin: 0; }
.model-divider {
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; color: var(--color-gold); font-weight: 700;
}
.model-result {
    margin-top: 24px; padding: 18px 20px; border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.08), rgba(12, 74, 110, 0.06));
    border-left: 3px solid var(--color-teal);
}
.model-result h5 { font-size: 0.95rem; color: var(--color-primary); margin-bottom: 6px; }
.model-result p { font-size: 0.85rem; color: var(--color-text-light); margin: 0; line-height: 1.6; }

/* ===== Advantage Cards (为什么选择) ===== */
.advantages-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.advantage-card {
    display: flex; gap: 24px; align-items: flex-start;
    background: var(--color-white); border-radius: var(--radius-lg); padding: 34px 32px;
    box-shadow: 0 4px 20px var(--color-shadow); border: 1px solid var(--color-border);
    transition: var(--transition);
}
.advantage-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px var(--color-shadow-hover); }
.advantage-num {
    font-size: 2.6rem; font-weight: 800; font-family: var(--font-serif);
    color: rgba(12, 74, 110, 0.12); line-height: 1; flex-shrink: 0;
}
.advantage-card h3 { font-size: 1.2rem; color: var(--color-primary); margin-bottom: 10px; }
.advantage-card p { font-size: 0.92rem; color: var(--color-text-light); line-height: 1.75; }

/* ===== Case Cards ===== */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.case-card {
    background: var(--color-white); border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: 0 4px 20px var(--color-shadow); transition: var(--transition);
    border: 1px solid var(--color-border);
}
.case-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px var(--color-shadow-hover); }
.case-top {
    padding: 18px 26px; display: flex; align-items: center; justify-content: space-between; gap: 10px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-teal));
    position: relative; overflow: hidden;
}
.case-top::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(circle at 30% 50%, rgba(200, 164, 92, 0.3) 0%, transparent 60%);
}
.case-card .case-tag {
    position: relative; z-index: 2;
    font-size: 0.72rem; font-weight: 600; color: white;
    background: rgba(255, 255, 255, 0.2); backdrop-filter: blur(4px);
    padding: 4px 12px; border-radius: var(--radius-full); white-space: nowrap;
}
.case-card .case-brand {
    position: relative; z-index: 2;
    font-size: 0.82rem; font-weight: 600; color: rgba(255, 255, 255, 0.92);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0;
}
.case-body { padding: 22px 26px 26px; }
.case-body h3 { font-size: 1.08rem; color: var(--color-primary); margin-bottom: 6px; }
.case-body .case-desc { font-size: 0.85rem; color: var(--color-text-light); margin-bottom: 18px; line-height: 1.7; }
.case-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; text-align: center; }
.case-stat { padding: 10px 4px; background: var(--color-bg); border-radius: var(--radius-sm); min-width: 0; }
.case-stat .cs-num { font-size: 0.95rem; font-weight: 700; color: var(--color-teal); word-break: keep-all; }
.case-stat .cs-label { font-size: 0.68rem; color: var(--color-text-muted); margin-top: 2px; }

/* ===== News Cards ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.news-card {
    background: var(--color-white); border-radius: var(--radius-lg); padding: 24px 26px 26px;
    box-shadow: 0 4px 20px var(--color-shadow); transition: var(--transition);
    border: 1px solid var(--color-border); display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px var(--color-shadow-hover); border-color: var(--color-teal-light); }
.news-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.news-date {
    font-size: 0.8rem; color: var(--color-text-muted); font-weight: 500;
    font-variant-numeric: tabular-nums; white-space: nowrap;
}
.news-cat {
    font-size: 0.7rem; font-weight: 600; color: var(--color-teal);
    background: rgba(13, 148, 136, 0.08); border: 1px solid rgba(13, 148, 136, 0.2);
    padding: 3px 10px; border-radius: var(--radius-full); white-space: nowrap;
}
.news-card h3 { font-size: 1rem; color: var(--color-primary); line-height: 1.6; margin-bottom: 10px; }
.news-card p { font-size: 0.88rem; color: var(--color-text-light); line-height: 1.8; flex: 1; }

/* ===== Featured News Card（置顶大新闻卡） ===== */
.news-card.featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(12, 74, 110, 0.04), rgba(13, 148, 136, 0.05));
    border: 1px solid rgba(13, 148, 136, 0.28);
}
.news-card.featured .news-cat {
    color: #ffffff; background: linear-gradient(135deg, var(--color-teal), var(--color-primary));
    border-color: transparent;
}
.news-card.featured .new-badge {
    display: inline-block; font-size: 0.68rem; font-weight: 700; color: #ffffff;
    background: var(--color-gold); padding: 2px 10px; border-radius: var(--radius-full);
    margin-left: 8px; letter-spacing: 1px; vertical-align: middle;
}
.news-card.featured h3 { font-size: 1.15rem; }
.cost-table {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 16px;
}
.cost-item {
    background: var(--color-white); border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); padding: 14px 12px; text-align: center;
    transition: var(--transition);
}
.cost-item:hover { border-color: var(--color-teal); transform: translateY(-3px); box-shadow: 0 6px 18px var(--color-shadow); }
.cost-item .co-area { font-size: 0.78rem; font-weight: 700; color: var(--color-primary); }
.cost-item .co-type { font-size: 0.72rem; color: var(--color-text-muted); margin: 3px 0 8px; }
.cost-item .co-price { font-size: 1.5rem; font-weight: 800; color: var(--color-teal); font-family: var(--font-serif); }
.cost-item .co-price small { font-size: 0.8rem; font-weight: 600; }
.cost-item .co-label { font-size: 0.68rem; color: var(--color-text-muted); margin-top: 2px; }

/* ===== 投放数据看板块 ===== */
.data-board { border-radius: var(--radius-lg); padding: 44px 48px; position: relative; overflow: hidden;
    background: linear-gradient(135deg, #156a9e 0%, #2a7fb0 55%, #1baea0 100%);
    color: #ffffff; box-shadow: 0 16px 48px var(--color-shadow-hover);
}
.data-board::before {
    content: ''; position: absolute; inset: 0;
    background-image: radial-gradient(circle at 85% 20%, rgba(200, 164, 92, 0.22) 0%, transparent 55%);
}
.data-board .db-tag { font-size: 0.75rem; font-weight: 700; letter-spacing: 2px; color: var(--color-gold); margin-bottom: 10px; position: relative; }
.data-board h2 { font-size: 1.8rem; margin-bottom: 8px; position: relative; }
.data-board .db-sub { font-size: 0.92rem; color: rgba(255, 255, 255, 0.82); line-height: 1.7; margin-bottom: 26px; position: relative; max-width: 680px; }
.db-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; position: relative; }
.db-item {
    background: rgba(255, 255, 255, 0.1); backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.18); border-radius: var(--radius-sm);
    padding: 18px 14px; text-align: center; transition: var(--transition);
}
.db-item:hover { background: rgba(255, 255, 255, 0.17); transform: translateY(-4px); }
.db-item .db-area { font-size: 0.82rem; font-weight: 700; }
.db-item .db-type { font-size: 0.74rem; color: rgba(255, 255, 255, 0.72); margin: 4px 0 10px; }
.db-item .db-price { font-size: 1.9rem; font-weight: 800; color: var(--color-gold); font-family: var(--font-serif); }
.db-item .db-price small { font-size: 0.85rem; font-weight: 600; }
.db-item .db-label { font-size: 0.7rem; color: rgba(255, 255, 255, 0.75); margin-top: 4px; }
.db-note { font-size: 0.78rem; color: rgba(255, 255, 255, 0.65); margin-top: 20px; position: relative; }
.db-note b { color: var(--color-gold); }

/* ===== Process Steps ===== */
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.process-step { text-align: center; position: relative; }
.process-step .ps-num {
    width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-teal));
    display: flex; align-items: center; justify-content: center;
    font-size: 1.4rem; font-weight: 800; color: white; font-family: var(--font-serif);
    box-shadow: 0 8px 24px var(--color-shadow); position: relative; z-index: 2;
}
.process-step:not(:last-child)::after {
    content: ''; position: absolute; top: 32px; left: calc(50% + 40px); right: calc(-50% + 40px);
    height: 2px; background: linear-gradient(90deg, var(--color-border), var(--color-teal), var(--color-border));
    z-index: 1;
}
.process-step h4 { font-size: 1.05rem; color: var(--color-primary); margin-bottom: 8px; }
.process-step p { font-size: 0.83rem; color: var(--color-text-light); line-height: 1.6; padding: 0 8px; }

/* ===== Industry Solutions ===== */
.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.industry-card {
    background: var(--color-white); border-radius: var(--radius-lg); padding: 34px 30px;
    box-shadow: 0 4px 20px var(--color-shadow); border: 1px solid var(--color-border);
    transition: var(--transition);
}
.industry-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px var(--color-shadow-hover); }
.industry-card h3 { font-size: 1.2rem; color: var(--color-primary); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.industry-row { margin-bottom: 16px; }
.industry-row:last-child { margin-bottom: 0; }
.industry-row .ir-label {
    display: inline-block; font-size: 0.72rem; font-weight: 600; padding: 3px 10px;
    border-radius: var(--radius-full); margin-bottom: 6px;
}
.ir-label.pain { background: rgba(224, 69, 91, 0.08); color: var(--color-red); }
.ir-label.solution { background: rgba(13, 148, 136, 0.08); color: var(--color-teal); }
.ir-label.effect { background: rgba(200, 164, 92, 0.12); color: #9a7b3f; }
.industry-row .ir-text { font-size: 0.88rem; color: var(--color-text-light); line-height: 1.65; }
.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* ===== Timeline ===== */
.timeline { position: relative; max-width: 800px; margin: 0 auto; padding: 20px 0; }
.timeline::before {
    content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-teal), var(--color-gold));
    transform: translateX(-50%);
}
.timeline-item { position: relative; width: 50%; padding: 0 40px 40px 0; }
.timeline-item:nth-child(even) { left: 50%; padding: 0 0 40px 40px; }
.timeline-item::before {
    content: ''; position: absolute; right: -8px; top: 6px; width: 16px; height: 16px;
    border-radius: 50%; background: var(--color-white); border: 3px solid var(--color-teal); z-index: 2;
}
.timeline-item:nth-child(even)::before { right: auto; left: -8px; }
.timeline-content {
    background: var(--color-white); border-radius: var(--radius-md); padding: 24px 28px;
    box-shadow: 0 4px 20px var(--color-shadow); border: 1px solid var(--color-border);
    transition: var(--transition);
}
.timeline-content:hover { box-shadow: 0 8px 30px var(--color-shadow-hover); transform: translateY(-2px); }
.timeline-year { font-size: 1.3rem; font-weight: 700; color: var(--color-teal); font-family: var(--font-serif); margin-bottom: 8px; }
.timeline-content h4 { font-size: 1.1rem; color: var(--color-primary); margin-bottom: 8px; }
.timeline-content p { font-size: 0.9rem; color: var(--color-text-light); line-height: 1.65; }

/* ===== Team ===== */
.team-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 24px; }
.team-card {
    background: var(--color-white); border-radius: var(--radius-lg); padding: 34px 22px;
    text-align: center; box-shadow: 0 4px 20px var(--color-shadow);
    border: 1px solid var(--color-border); transition: var(--transition);
}
.team-card:hover { transform: translateY(-6px); box-shadow: 0 12px 40px var(--color-shadow-hover); }
.team-avatar {
    width: 76px; height: 76px; margin: 0 auto 18px; border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-teal));
    display: flex; align-items: center; justify-content: center;
    font-size: 1.8rem; font-weight: 700; color: white;
}
.team-avatar-img {
    width: 84px; height: 84px; margin: 0 auto 14px; border-radius: 50%;
    object-fit: cover; border: 4px solid var(--color-white);
    box-shadow: 0 2px 8px var(--color-shadow);
}
.team-avatar-img.avatar-contain {
    object-fit: contain;
    background: var(--color-bg-alt);
}
.team-card h3 { font-size: 1.1rem; color: var(--color-primary); margin-bottom: 4px; }
.team-card .team-role { font-size: 0.85rem; color: var(--color-teal); font-weight: 600; margin-bottom: 14px; }
.team-card .team-desc { font-size: 0.8rem; color: var(--color-text-light); line-height: 1.65; }

/* ===== Team Section Header (in about-visual) ===== */
.team-section-header {
    text-align: center;
    padding: 20px 16px 10px;
}
.team-section-header .team-section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-teal);
    margin-bottom: 6px;
}
.team-section-header h3 {
    font-size: 1.15rem;
    color: var(--color-primary);
    margin-bottom: 4px;
    font-weight: 700;
}
.team-section-header p {
    font-size: 0.78rem;
    color: var(--color-text-light);
    margin: 0;
}

/* ===== Compact Team Grid for About Intro (3 rows x 2 cols) ===== */
.about-team-grid-compact {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    padding: 12px;
}
.team-card-compact {
    background: var(--color-white);
    border-radius: var(--radius-sm);
    padding: 8px 6px;
    text-align: center;
    box-shadow: 0 1px 6px var(--color-shadow);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.team-card-compact:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--color-shadow-hover);
    border-color: var(--color-teal-light);
}
.team-card-compact .team-avatar-img {
    width: 44px;
    height: 44px;
    margin: 0 auto 6px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-white);
    box-shadow: 0 1px 4px var(--color-shadow);
}
.team-card-compact h3 {
    font-size: 0.85rem;
    color: var(--color-primary);
    margin-bottom: 1px;
    font-weight: 600;
}
.team-card-compact .team-role {
    font-size: 0.68rem;
    color: var(--color-teal);
    font-weight: 600;
}
@media (max-width: 768px) {
    .about-team-grid-compact {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
        padding: 10px;
    }
    .team-card-compact {
        padding: 6px 4px;
    }
    .team-card-compact .team-avatar-img {
        width: 36px;
        height: 36px;
    }
    .team-card-compact h3 {
        font-size: 0.78rem;
    }
    .team-card-compact .team-role {
        font-size: 0.62rem;
    }
}
@media (max-width: 480px) {
    .about-team-grid-compact {
        grid-template-columns: repeat(2, 1fr);
        gap: 5px;
        padding: 8px;
    }
}

/* ===== Culture / Values ===== */
.culture-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.culture-card {
    background: var(--color-white); border-radius: var(--radius-lg); padding: 36px 34px;
    box-shadow: 0 4px 20px var(--color-shadow); border: 1px solid var(--color-border);
    transition: var(--transition);
}
.culture-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px var(--color-shadow-hover); }
.culture-card .culture-label {
    display: inline-block; font-size: 0.78rem; font-weight: 600; letter-spacing: 1px;
    color: var(--color-teal); margin-bottom: 12px;
}
.culture-card h3 { font-size: 1.25rem; color: var(--color-primary); margin-bottom: 12px; }
.culture-card p { font-size: 0.92rem; color: var(--color-text-light); line-height: 1.75; }
.culture-values { margin-top: 14px; }
.culture-values li { font-size: 0.9rem; color: var(--color-text); padding: 6px 0; display: flex; align-items: center; gap: 10px; }
.culture-values li::before { content: ''; width: 8px; height: 8px; background: var(--color-gold); border-radius: 50%; flex-shrink: 0; }

/* ===== Partners ===== */
.partners-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.partner-card {
    background: var(--color-white); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); padding: 24px 12px; text-align: center; transition: var(--transition);
}
.partner-card:hover { border-color: var(--color-teal); box-shadow: 0 4px 20px var(--color-shadow); transform: translateY(-2px); }
.partner-card .partner-name { font-size: 1.15rem; font-weight: 700; color: var(--color-primary); }
.partner-card .partner-type { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 4px; }

/* ===== Qualifications ===== */
.qual-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.qual-item {
    display: flex; align-items: center; gap: 14px;
    background: var(--color-white); border: 1px solid var(--color-border);
    border-radius: var(--radius-md); padding: 20px 24px; transition: var(--transition);
}
.qual-item:hover { border-color: var(--color-teal); box-shadow: 0 4px 16px var(--color-shadow); }
.qual-item .q-icon { color: var(--color-gold); font-size: 1.2rem; flex-shrink: 0; }
.qual-item .q-text { font-size: 0.95rem; font-weight: 600; color: var(--color-text); }

/* ===== Contact ===== */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h2 { font-size: 2.1rem; color: var(--color-primary); margin-bottom: 22px; }
.contact-info > p { color: var(--color-text-light); margin-bottom: 36px; line-height: 1.8; }
.contact-items { display: grid; gap: 22px; }
.contact-item { display: flex; align-items: flex-start; gap: 16px; }
.contact-item-icon {
    width: 48px; height: 48px; border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-primary), var(--color-teal));
    display: flex; align-items: center; justify-content: center;
    color: white; font-size: 1.1rem; flex-shrink: 0;
}
.contact-item-text h4 { font-size: 1rem; margin-bottom: 4px; }
.contact-item-text p { font-size: 0.95rem; color: var(--color-text-light); margin: 0; }
.contact-item-text a { color: var(--color-teal); font-weight: 600; }
.contact-item-text a:hover { color: var(--color-primary); }

.contact-form {
    background: var(--color-white); border-radius: var(--radius-lg); padding: 40px;
    box-shadow: 0 8px 40px var(--color-shadow); border: 1px solid var(--color-border);
}
.contact-form h3 { font-size: 1.4rem; color: var(--color-primary); margin-bottom: 8px; }
.contact-form .form-tip { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.9rem; font-weight: 600; margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 12px 16px; font-size: 0.95rem;
    border: 1.5px solid var(--color-border); border-radius: var(--radius-sm);
    font-family: var(--font-sans); transition: var(--transition);
    background: var(--color-bg); color: var(--color-text);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none; border-color: var(--color-teal); background: var(--color-white);
    box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.1);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ===== Dual Company ===== */
.dual-company { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.company-card {
    background: var(--color-white); border-radius: var(--radius-lg); padding: 40px 36px;
    box-shadow: 0 4px 24px var(--color-shadow); border-top: 4px solid var(--color-teal);
    transition: var(--transition);
}
.company-card.primary { border-top-color: var(--color-gold); }
.company-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px var(--color-shadow-hover); }
.company-card .cc-badge {
    display: inline-block; font-size: 0.75rem; font-weight: 600; padding: 4px 14px;
    border-radius: var(--radius-full); margin-bottom: 14px;
    background: rgba(13, 148, 136, 0.08); color: var(--color-teal);
}
.company-card.primary .cc-badge { background: rgba(200, 164, 92, 0.12); color: #9a7b3f; }
.company-card h3 { font-size: 1.4rem; color: var(--color-primary); margin-bottom: 20px; }
.company-card ul li {
    font-size: 0.92rem; color: var(--color-text-light); padding: 9px 0;
    display: flex; align-items: flex-start; gap: 10px; line-height: 1.6;
}
.company-card ul li::before { content: ''; width: 6px; height: 6px; background: var(--color-teal); border-radius: 50%; flex-shrink: 0; margin-top: 9px; }

/* ===== CTA ===== */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
    content: ''; position: absolute; inset: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(13, 148, 136, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(200, 164, 92, 0.15) 0%, transparent 50%);
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 2.4rem; color: var(--color-white); margin-bottom: 14px; }
.cta-section p { font-size: 1.08rem; color: rgba(255, 255, 255, 0.8); margin-bottom: 32px; }

/* ===== Footer ===== */
.site-footer { background: var(--color-primary-dark); color: rgba(255, 255, 255, 0.7); padding: 60px 0 0; }
.footer-grid {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
    padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .logo { color: white; margin-bottom: 16px; }
.footer-brand .logo .logo-text .en { color: rgba(255, 255, 255, 0.4); }
.footer-brand p { font-size: 0.9rem; line-height: 1.55; color: rgba(255, 255, 255, 0.6); max-width: 420px; }
.footer-col h4 { color: white; font-size: 1rem; margin-bottom: 20px; font-weight: 600; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { font-size: 0.9rem; color: rgba(255, 255, 255, 0.6); }
.footer-col ul li a:hover { color: var(--color-teal-light); }
.footer-col ul li { font-size: 0.9rem; color: rgba(255, 255, 255, 0.6); }
.footer-bottom {
    padding: 24px 0; display: flex; justify-content: space-between; align-items: center;
    font-size: 0.85rem; color: rgba(255, 255, 255, 0.4); flex-wrap: wrap; gap: 8px;
}

/* ===== Animations ===== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.fade-in-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in-up.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .hero h1 { font-size: 2.3rem; }
    .hero-tagline { font-size: 2.2rem; }
    .hero-stats { justify-content: center; }
    .hero-stat { text-align: center; }
    .hero-stat .num, .hero-stat .label { text-align: center; }
    .section-title { font-size: 1.9rem; }
    .services-grid, .cases-grid, .industries-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .cost-table { grid-template-columns: repeat(2, 1fr); }
    .db-grid { grid-template-columns: repeat(2, 1fr); }
    .data-board { padding: 34px 28px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
    .partners-grid { grid-template-columns: repeat(3, 1fr); }
    .team-grid { grid-template-columns: repeat(3, 1fr); }
    .about-intro { grid-template-columns: 1fr; }
    .about-visual { min-height: 300px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .dual-model { grid-template-columns: 1fr; }
    .model-divider { padding: 8px 0; }
    .advantages-grid, .culture-grid, .dual-company { grid-template-columns: 1fr; }
    .process-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
    .process-step:not(:last-child)::after { display: none; }
    .qual-grid { grid-template-columns: repeat(2, 1fr); }
    .photo-wall { grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .team-hero-info { padding: 18px 16px; }
    .team-hero-title { font-size: 1.15rem; }
    .team-hero-stats { gap: 20px; }
    .ths-num { font-size: 1.2rem; }
    .timeline::before { left: 0; }
    .timeline-item { width: 100%; padding: 0 0 40px 40px; }
    .timeline-item:nth-child(even) { left: 0; padding: 0 0 40px 40px; }
    .timeline-item::before { right: auto; left: -8px; }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none; position: fixed; top: var(--header-height); left: 0; right: 0;
        background: white; flex-direction: column; padding: 20px; gap: 0;
        box-shadow: 0 10px 30px var(--color-shadow); border-top: 1px solid var(--color-border);
    }
    .nav-menu.active { display: flex; }
    .nav-menu a { width: 100%; padding: 14px 18px; border-radius: var(--radius-sm); }
    .nav-menu a.active::after { display: none; }
    .nav-cta { margin: 12px 0 0; width: 100%; }
    .menu-toggle { display: flex; }
    .hero h1 { font-size: 1.8rem; }
    .hero-tagline { font-size: 1.8rem; letter-spacing: 2px; overflow-wrap: break-word; word-break: break-word; }
    .hero .hero-desc { font-size: 1rem; }
    .hero-stats { gap: 24px; margin-top: 18px; margin-bottom: 18px; justify-content: center; }
    .hero-stat { text-align: center; }
    .hero-stat .num, .hero-stat .label { text-align: center; }
    .hero-stat .num { font-size: 1.7rem; }
    .services-grid, .cases-grid, .projects-grid, .industries-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .cost-table { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .cost-item { padding: 10px 8px; }
    .cost-item .co-price { font-size: 1.25rem; }
    .db-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .data-board { padding: 28px 18px; }
    .data-board h2 { font-size: 1.4rem; }
    .db-item { padding: 14px 10px; }
    .db-item .db-price { font-size: 1.5rem; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .section { padding: 56px 0; }
    .section-title { font-size: 1.6rem; }
    .page-banner h1 { font-size: 1.9rem; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .about-features { grid-template-columns: 1fr; }
    .doorway-item { width: auto; flex-shrink: 1; }
    .contact-form { padding: 28px 20px; }
    .case-stats { grid-template-columns: repeat(3, 1fr); gap: 6px; }
    .process-grid { grid-template-columns: 1fr; }
    .qual-grid { grid-template-columns: 1fr; }
    .advantage-card { flex-direction: column; gap: 12px; }
    .hero-stats { flex-wrap: wrap; justify-content: center; row-gap: 20px; }
    .hero-stat { text-align: center; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-brand { text-align: center; }
    .footer-brand .logo { display: inline-block; }
    .footer-brand p { max-width: 100%; text-align: center; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .case-top { padding: 14px 18px; }
    .case-body { padding: 18px 18px 20px; }
    .news-card { padding: 20px 18px 22px; }
    .container { padding: 0 18px; }

    /* ===== 全站图集：3/5/6 个一组，最后一行居中、平均分布 =====
       用 flex + flex-wrap + justify-content:center 替代 grid，
       当一行放不满时剩余元素自动居中。手机 2 列：5 张=2+2+1 居中、6 张=2+2+2 满。 */
    .doorway-track,
    .partners-grid,
    .team-grid {
        display: flex !important;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
        overflow-x: visible;
    }
    .doorway-item,
    .partners-grid > *,
    .team-grid > * {
        width: calc((100% - 10px) / 2);
        flex-shrink: 0;
    }
    .doorway-item img { height: 90px; }

    /* 单卡片类（3 个一组）：手机全宽居中，单卡最大 420 防止被拉得超宽 */
    .cases-grid,
    .news-grid,
    .services-grid,
    .industry-grid,
    .qual-grid,
    .culture-grid {
        display: flex !important;
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }
    .cases-grid > *,
    .news-grid > *,
    .services-grid > *,
    .industry-grid > *,
    .qual-grid > *,
    .culture-grid > * {
        width: 100%;
        max-width: 420px;
    }
}

/* ===== 小屏手机（480px 以下）适配 ===== */
@media (max-width: 480px) {
    html { font-size: 15px; }
    .hero { padding: 120px 0 60px; }
    .hero h1 { font-size: 1.5rem; line-height: 1.5; }
    .hero .hero-desc { font-size: 0.92rem; }
    .hero-actions { flex-direction: column; gap: 12px; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 10px; margin-top: 22px; }
    .hero-stat { text-align: center; }
    .hero-stat .num { font-size: 1.5rem; }
    .section { padding: 44px 0; }
    .section-title { font-size: 1.35rem; }
    .section-subtitle { font-size: 0.9rem; }
    .page-banner { padding: 120px 0 60px; }
    .page-banner h1 { font-size: 1.45rem; }
    .partners-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .team-grid { grid-template-columns: 1fr; }
    .case-stats { grid-template-columns: repeat(3, 1fr); gap: 5px; }
    .case-stat { padding: 8px 2px; }
    .case-stat .cs-num { font-size: 0.8rem; }
    .case-stat .cs-label { font-size: 0.62rem; }
    .case-top { flex-wrap: wrap; gap: 8px; }
    .footer-bottom { font-size: 0.75rem; }
    .seo-kw-list { gap: 6px; }
    .seo-kw-list a { font-size: 0.7rem; padding: 2px 8px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 26px 14px; }
    .breadcrumb { font-size: 0.8rem; flex-wrap: wrap; }
    .nav-container { padding: 0 16px; }
    .logo-icon { width: 38px; height: 38px; font-size: 0.95rem; }
    .logo-img { height: 36px; }
    .photo-wall { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .photo-wall .pw-item { border-radius: var(--radius-sm); }
    .team-hero-info { padding: 14px 12px; }
    .team-hero-title { font-size: 1rem; }
    .team-hero-stats { gap: 14px; }
    .ths-num { font-size: 1rem; }
    .ths-label { font-size: 0.68rem; }
    .team-hero-badge { font-size: 0.62rem; padding: 3px 10px; }
    .logo-text .cn { font-size: 1rem; }
    .logo-text .en { font-size: 0.55rem; letter-spacing: 1px; }
    .doorway-item { width: auto; flex-shrink: 1; }
    .doorway-item img { height: 60px; }
    .doorway-year { font-size: 0.8rem; }
    .doorway-desc { font-size: 0.65rem; }
    .doorway-item img { height: 80px; }
    .about-intro h2 { font-size: 1.4rem; word-break: break-word; overflow-wrap: break-word; }
    .about-intro p { font-size: 0.9rem; word-break: break-word; overflow-wrap: break-word; }
    .about-feature-text h4 { font-size: 0.9rem; }
    .about-feature-text p { font-size: 0.78rem; }
}

/* ===== SEO 关键词区块 ===== */
.seo-keywords {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: 22px 0 18px;
    margin-top: 8px;
}
.seo-keywords .seo-kw-title {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    letter-spacing: 2px;
    margin-bottom: 10px;
}
.seo-kw-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 8px;
}
.seo-kw-list a {
    display: inline-block;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    padding: 3px 10px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 999px;
    transition: all 0.25s ease;
    white-space: nowrap;
}
.seo-kw-list a:hover {
    color: #ffffff;
    border-color: var(--color-gold);
    background: rgba(200, 164, 92, 0.12);
}
.seo-kw-list a.kw-hot {
    color: var(--color-gold-light);
    border-color: rgba(200, 164, 92, 0.45);
}

/* ===== 团队风采 Gallery ===== */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.photo-gallery-item {
    border-radius: 12px;
    overflow: hidden;
    background: var(--color-card);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.photo-gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}
.photo-gallery-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}
.photo-gallery-item .pg-caption {
    padding: 12px 14px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    text-align: center;
}
@media (max-width: 900px) {
    .photo-gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
    .photo-gallery { grid-template-columns: 1fr; }
    .photo-gallery-item img { height: 180px; }
}

/* ===== History Horizontal ===== */
.history-horizontal { display: flex; flex-direction: column; gap: 32px; }
.history-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.history-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    box-shadow: 0 4px 20px var(--color-shadow);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.history-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px var(--color-shadow-hover); }
.history-year {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary), var(--color-teal));
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 14px;
}
.history-card h4 { font-size: 1rem; color: var(--color-primary); margin-bottom: 8px; }
.history-card p { font-size: 0.82rem; color: var(--color-text-light); line-height: 1.6; }
@media (max-width: 900px) {
    .history-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
    .history-row { grid-template-columns: 1fr; }
}

/* ===== 首页重设计新增样式 ===== */
.section-transition {
    text-align: center;
    padding: 40px 0;
    font-size: 16px;
    color: #999;
    font-style: italic;
    position: relative;
}
.section-transition::before,
.section-transition::after {
    content: "——";
    margin: 0 12px;
    color: #ccc;
}

.big-num {
    font-size: 1.3em;
    font-weight: 700;
    color: var(--color-primary);
}

.cta-trust {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 16px;
}

.cta-section {
    padding: 100px 0 !important;
}

/* ===== 防复制增强 ===== */
.no-copy, .no-copy * {
    -webkit-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
    user-select: none !important;
    -webkit-touch-callout: none !important;
}