/* ============================================
   铭赞网络 - 微信公众号开发运营营销网站
   主样式表 main.css
   ============================================ */

:root {
    --color-bg: #FFFFFF;
    --color-bg-alt: #F7F8FA;
    --color-bg-dark: #0A1F44;
    --color-bg-deeper: #061634;
    --color-text: #1F2937;
    --color-text-muted: #6B7280;
    --color-text-light: #9CA3AF;
    --color-border: #E5E7EB;
    --color-border-strong: #D1D5DB;
    --color-gold: #C9A961;
    --color-gold-light: #E8DCC4;
    --color-gold-dark: #A8893D;
    --color-accent: #C9A961;
    --color-success: #10B981;
    --shadow-sm: 0 1px 2px rgba(10, 31, 68, 0.04), 0 1px 3px rgba(10, 31, 68, 0.06);
    --shadow-md: 0 4px 6px rgba(10, 31, 68, 0.05), 0 10px 15px rgba(10, 31, 68, 0.08);
    --shadow-lg: 0 10px 25px rgba(10, 31, 68, 0.08), 0 20px 40px rgba(10, 31, 68, 0.12);
    --shadow-gold: 0 8px 24px rgba(201, 169, 97, 0.25);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-pill: 999px;
    --container: 1240px;
    --header-h: 110px;
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Noto Serif SC', 'Noto Sans SC', serif;
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
    letter-spacing: 0.01em;
}

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

a:hover {
    color: var(--color-gold);
}

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

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

ul, ol {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-bg-dark);
    color: #fff;
    padding: 12px 20px;
    z-index: 9999;
    transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ============ 顶部信息条 ============ */
.topbar {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.85);
    font-size: 13px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 36px;
}

.topbar-left .topbar-item { color: rgba(255, 255, 255, 0.75); }

.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-right .topbar-item {
    color: rgba(255, 255, 255, 0.75);
    transition: color 0.2s var(--ease);
}

.topbar-right .topbar-item:hover { color: var(--color-gold); }

.topbar-divider {
    color: rgba(255, 255, 255, 0.3);
}

/* ============ 导航栏 ============ */
.navbar {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}

.site-header.scrolled .navbar {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: saturate(180%) blur(12px);
    -webkit-backdrop-filter: saturate(180%) blur(12px);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-bg-dark);
    font-weight: 600;
    white-space: nowrap;
}

.brand:hover { color: var(--color-bg-dark); }

.brand-name {
    font-family: 'Noto Serif SC', serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.04em;
    position: relative;
}

.reg-mark {
    font-size: 0.45em;
    vertical-align: super;
    color: var(--color-gold);
    margin-left: 1px;
    font-weight: 500;
}

.brand-divider {
    width: 1px;
    height: 22px;
    background: var(--color-border-strong);
    display: inline-block;
    margin: 0 2px;
}

.brand-tagline {
    font-size: 15px;
    color: var(--color-text-muted);
    font-weight: 500;
    letter-spacing: 0.05em;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-list a {
    display: inline-block;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    position: relative;
    transition: color 0.2s var(--ease);
}

.nav-list a::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 4px;
    width: 0;
    height: 2px;
    background: var(--color-gold);
    transition: width 0.25s var(--ease), left 0.25s var(--ease);
}

.nav-list a:hover {
    color: var(--color-gold);
}

.nav-list a:hover::after {
    width: calc(100% - 32px);
    left: 16px;
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    transition: all 0.3s var(--ease);
}

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

/* ============ Hero 区 ============ */
.hero {
    position: relative;
    min-height: calc(100vh - var(--header-h));
    padding: 80px 0 100px;
    background: var(--color-bg-dark);
    color: #fff;
    overflow: hidden;
    isolation: isolate;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.hero-mesh {
    position: absolute;
    inset: -50%;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(201, 169, 97, 0.18) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(58, 113, 199, 0.22) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(201, 169, 97, 0.12) 0%, transparent 50%);
    filter: blur(40px);
    animation: meshDrift 18s ease-in-out infinite alternate;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
    animation: orbFloat 14s ease-in-out infinite;
}

.hero-orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(201, 169, 97, 0.4), transparent);
    top: -100px;
    left: -100px;
}

.hero-orb-2 {
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(78, 142, 230, 0.3), transparent);
    bottom: -80px;
    right: -50px;
    animation-delay: -5s;
    animation-duration: 18s;
}

.hero-orb-3 {
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(201, 169, 97, 0.3), transparent);
    top: 40%;
    right: 20%;
    animation-delay: -9s;
    animation-duration: 22s;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
}

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text { max-width: 660px; }

.hero-eyebrow {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid rgba(201, 169, 97, 0.4);
    border-radius: var(--radius-pill);
    color: var(--color-gold);
    font-size: 13px;
    letter-spacing: 0.1em;
    margin-bottom: 28px;
    background: rgba(201, 169, 97, 0.08);
}

.hero-title {
    font-size: 52px;
    line-height: 1.22;
    font-weight: 600;
    color: #fff;
    margin-bottom: 24px;
    letter-spacing: 0.01em;
    word-break: keep-all;
    text-wrap: balance;
    overflow-wrap: break-word;
}

.hero-title strong {
    color: var(--color-gold);
    font-weight: 700;
    position: relative;
    padding: 0 2px;
}

.title-line-sub {
    display: block;
    font-size: 0.45em;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
    margin-top: 14px;
    letter-spacing: 0.15em;
    font-family: 'Noto Sans SC', sans-serif;
}

.hero-sub {
    font-size: 17px;
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.78);
    margin-bottom: 36px;
    max-width: 580px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 26px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: all 0.25s var(--ease);
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--color-gold);
    color: var(--color-bg-dark);
    box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
    background: #d4b572;
    color: var(--color-bg-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(201, 169, 97, 0.4);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--color-gold);
    border-color: var(--color-gold);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 14px;
}

.hero-trust {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    padding-top: 36px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    max-width: 600px;
}

.hero-trust li {
    display: flex;
    flex-direction: column;
}

.hero-trust strong {
    font-family: 'Noto Serif SC', serif;
    font-size: 32px;
    color: var(--color-gold);
    font-weight: 700;
    line-height: 1;
    margin-bottom: 6px;
}

.hero-trust span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
    letter-spacing: 0.05em;
}

/* Hero 视觉卡片 */
.hero-visual {
    position: relative;
    height: 460px;
    display: none;
}

.visual-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 20px 22px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-lg);
    animation: cardFloat 6s ease-in-out infinite;
}

.visual-card-1 { top: 5%; left: 0; width: 280px; animation-delay: 0s; }
.visual-card-2 { top: 28%; right: 0; width: 280px; animation-delay: -1.5s; }
.visual-card-3 { top: 52%; left: 5%; width: 280px; animation-delay: -3s; }
.visual-card-4 { top: 75%; right: 5%; width: 280px; animation-delay: -4.5s; }

.visual-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-gold), #e8c98a);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    box-shadow: 0 4px 12px rgba(201, 169, 97, 0.3);
}

.visual-icon-wechat::before {
    content: '';
    width: 26px;
    height: 22px;
    background: var(--color-bg-dark);
    border-radius: 6px 6px 6px 2px;
    position: relative;
    display: block;
}
.visual-icon-wechat::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--color-bg-dark);
    border-radius: 50%;
    top: 14px;
    left: 14px;
    box-shadow: 12px 0 0 var(--color-bg-dark);
}

.visual-icon-content {
    background: linear-gradient(135deg, #4F8FE6, #6BA8F0);
}
.visual-icon-content::before {
    content: '';
    width: 24px;
    height: 28px;
    background: #fff;
    border-radius: 3px;
    position: relative;
    display: block;
    box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.4);
}

.visual-icon-growth {
    background: linear-gradient(135deg, #2DB47A, #4FCB97);
}
.visual-icon-growth::before {
    content: '';
    width: 6px;
    height: 24px;
    background: #fff;
    position: absolute;
    bottom: 12px;
    left: 16px;
    box-shadow: 12px -8px 0 #fff, 22px 0 0 #fff;
}

.visual-icon-data {
    background: linear-gradient(135deg, #C9A961, #A8893D);
}
.visual-icon-data::before {
    content: '';
    width: 28px;
    height: 22px;
    background: #fff;
    border-radius: 50% 50% 0 0;
    position: relative;
    display: block;
    box-shadow: inset 0 -8px 0 -2px var(--color-bg-dark);
}

.visual-title {
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 4px;
}

.visual-meta {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 26px;
    height: 42px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.hero-scroll span {
    width: 3px;
    height: 8px;
    background: var(--color-gold);
    border-radius: 2px;
    animation: scrollHint 1.8s ease-in-out infinite;
}

@media (min-width: 1024px) {
    .hero-visual { display: block; }
}

/* ============ 通用 Section ============ */
.section {
    padding: 100px 0;
    background: var(--color-bg);
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-head {
    max-width: 760px;
    margin: 0 auto 64px;
    text-align: center;
}

.section-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-gold);
    margin-bottom: 18px;
    padding: 4px 0;
    position: relative;
}

.section-eyebrow::before,
.section-eyebrow::after {
    content: '';
    display: inline-block;
    width: 30px;
    height: 1px;
    background: var(--color-gold);
    vertical-align: middle;
    margin: 0 12px;
}

.section-title {
    font-size: 38px;
    font-weight: 600;
    color: var(--color-bg-dark);
    margin-bottom: 18px;
    letter-spacing: 0.02em;
}

.section-lead {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-text-muted);
}

/* ============ 核心服务 ============ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 40px 32px;
    position: relative;
    transition: all 0.3s var(--ease);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gold), #e8c98a);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s var(--ease);
}

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

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

.service-card-featured {
    background: linear-gradient(180deg, var(--color-bg-dark) 0%, #122d5e 100%);
    color: #fff;
    border-color: transparent;
}

.service-card-featured::before {
    background: var(--color-gold);
    transform: scaleX(1);
}

.service-card-featured .service-title,
.service-card-featured .service-num { color: #fff; }

.service-card-featured .service-desc,
.service-card-featured .service-list li { color: rgba(255, 255, 255, 0.85); }

.service-card-featured .service-list li::before {
    background: var(--color-gold);
}

.service-card-featured .service-link {
    color: var(--color-gold);
}

.service-flag {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--color-gold);
    color: var(--color-bg-dark);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    letter-spacing: 0.1em;
}

.service-num {
    font-family: 'Noto Serif SC', serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--color-gold);
    line-height: 1;
    margin-bottom: 18px;
    letter-spacing: 0.05em;
}

.service-title {
    font-size: 22px;
    color: var(--color-bg-dark);
    margin-bottom: 14px;
    font-weight: 600;
}

.service-desc {
    font-size: 14.5px;
    line-height: 1.8;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.service-list {
    margin-bottom: 28px;
}

.service-list li {
    position: relative;
    padding-left: 22px;
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: 8px;
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 8px;
    height: 8px;
    background: var(--color-gold);
    border-radius: 50%;
}

.service-link {
    display: inline-block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-bg-dark);
    padding-bottom: 2px;
    border-bottom: 1px solid var(--color-gold);
    transition: all 0.2s var(--ease);
}

.service-link:hover {
    color: var(--color-gold);
    transform: translateX(4px);
}

/* ============ 增值服务网格 ============ */
.extras-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.extra-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 30px 26px;
    transition: all 0.3s var(--ease);
    position: relative;
}

.extra-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-gold);
    box-shadow: var(--shadow-md);
}

.extra-icon {
    font-size: 32px;
    margin-bottom: 18px;
    line-height: 1;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
    transition: all 0.3s var(--ease);
}

.extra-card:hover .extra-icon {
    background: linear-gradient(135deg, var(--color-gold), #e8c98a);
    transform: scale(1.05);
}

.extra-card h3 {
    font-size: 18px;
    color: var(--color-bg-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.extra-card p {
    font-size: 13.5px;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ============ 15年优势 ============ */
.advantage-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.advantage-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    position: sticky;
    top: 130px;
}

.stat-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s var(--ease);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-gold);
}

.stat-num {
    font-family: 'Noto Serif SC', serif;
    font-size: 48px;
    color: var(--color-gold);
    font-weight: 700;
    line-height: 1;
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}

.stat-num i {
    font-style: normal;
    font-size: 0.6em;
    color: var(--color-gold-dark);
    margin-left: 2px;
}

.stat-label {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-bg-dark);
    margin-bottom: 6px;
}

.stat-desc {
    font-size: 12.5px;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ============ 时间轴 ============ */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--color-gold) 0%, var(--color-gold-light) 100%);
}

.timeline li {
    position: relative;
    padding-bottom: 36px;
    padding-left: 30px;
}

.timeline li::before {
    content: '';
    position: absolute;
    left: -36px;
    top: 8px;
    width: 14px;
    height: 14px;
    background: #fff;
    border: 3px solid var(--color-gold);
    border-radius: 50%;
    z-index: 1;
    transition: all 0.3s var(--ease);
}

.timeline li:hover::before {
    background: var(--color-gold);
    transform: scale(1.2);
}

.time-year {
    font-family: 'Noto Serif SC', serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 6px;
    letter-spacing: 0.05em;
}

.time-content h4 {
    font-size: 17px;
    color: var(--color-bg-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.time-content p {
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-text-muted);
}

/* ============ 服务流程 ============ */
.process-list {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    position: relative;
}

.process-step {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px 20px;
    text-align: center;
    position: relative;
    transition: all 0.3s var(--ease);
}

.process-step::after {
    content: '→';
    position: absolute;
    right: -16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gold);
    font-size: 22px;
    z-index: 1;
    background: var(--color-bg-alt);
    width: 32px;
    height: 32px;
    line-height: 32px;
    border-radius: 50%;
}

.process-step:last-child::after { display: none; }

.process-step:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-gold);
}

.step-num {
    font-family: 'Noto Serif SC', serif;
    font-size: 28px;
    color: var(--color-gold);
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 0.05em;
}

.process-step h3 {
    font-size: 16px;
    color: var(--color-bg-dark);
    margin-bottom: 10px;
    font-weight: 600;
}

.process-step p {
    font-size: 13px;
    line-height: 1.7;
    color: var(--color-text-muted);
}

/* ============ 行业方案 ============ */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.solution-card {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 36px 30px;
    transition: all 0.3s var(--ease);
    position: relative;
    overflow: hidden;
    display: block;
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--color-gold);
    transition: height 0.4s var(--ease);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-gold);
    color: var(--color-text);
}

.solution-card:hover::before {
    height: 100%;
}

.solution-icon {
    font-size: 36px;
    margin-bottom: 18px;
    display: inline-block;
    transition: transform 0.3s var(--ease);
}

.solution-card:hover .solution-icon {
    transform: scale(1.1) rotate(-5deg);
}

.solution-card h3 {
    font-size: 20px;
    color: var(--color-bg-dark);
    margin-bottom: 10px;
    font-weight: 600;
}

.solution-card p {
    font-size: 14px;
    line-height: 1.75;
    color: var(--color-text-muted);
    margin-bottom: 18px;
}

.solution-arrow {
    display: inline-block;
    font-size: 13px;
    color: var(--color-gold);
    font-weight: 500;
    transition: transform 0.2s var(--ease);
}

.solution-card:hover .solution-arrow {
    transform: translateX(4px);
}

/* ============ FAQ ============ */
.faq-list {
    max-width: 980px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.3s var(--ease);
}

.faq-item[open] {
    border-color: var(--color-gold);
    box-shadow: 0 4px 16px rgba(201, 169, 97, 0.1);
}

.faq-item summary {
    list-style: none;
    padding: 22px 28px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-bg-dark);
    transition: background 0.2s var(--ease);
    user-select: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary:hover {
    background: var(--color-bg-alt);
}

.faq-q {
    flex: 1;
    line-height: 1.6;
}

.faq-toggle {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-bg-alt);
    position: relative;
    transition: all 0.3s var(--ease);
}

.faq-toggle::before,
.faq-toggle::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 12px;
    height: 2px;
    background: var(--color-gold);
    transform: translate(-50%, -50%);
    transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.faq-toggle::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] .faq-toggle {
    background: var(--color-gold);
}

.faq-item[open] .faq-toggle::before {
    background: #fff;
}

.faq-item[open] .faq-toggle::after {
    opacity: 0;
    transform: translate(-50%, -50%) rotate(0deg);
}

.faq-a {
    padding: 0 28px 24px;
    color: var(--color-text-muted);
    line-height: 1.85;
    font-size: 14.5px;
    border-top: 1px solid var(--color-border);
    margin-top: 0;
    padding-top: 18px;
    animation: fadeInUp 0.3s var(--ease);
}

.faq-a p { margin: 0; }

/* ============ 联系方式 ============ */
.contact-section {
    background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-deeper) 100%);
    color: #fff;
}

.contact-section .section-title { color: #fff; }
.contact-section .section-eyebrow { color: var(--color-gold); }
.contact-section .section-lead { color: rgba(255, 255, 255, 0.7); }

.contact-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}

.contact-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 28px 22px;
    text-align: center;
    transition: all 0.3s var(--ease);
    color: #fff;
    display: block;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(201, 169, 97, 0.15), transparent);
    opacity: 0;
    transition: opacity 0.3s var(--ease);
}

.contact-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-gold);
    color: var(--color-gold);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

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

.contact-icon {
    font-size: 32px;
    margin-bottom: 14px;
    line-height: 1;
    position: relative;
}

.contact-card h3 {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    margin-bottom: 10px;
    font-family: 'Noto Sans SC', sans-serif;
    letter-spacing: 0.05em;
    position: relative;
}

.contact-card p {
    font-size: 15px;
    color: #fff;
    font-weight: 600;
    position: relative;
}

.contact-card:hover h3 { color: rgba(255, 255, 255, 0.85); }
.contact-card:hover p { color: var(--color-gold); }

.qr-wrap {
    display: flex;
    justify-content: center;
}

.qr-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 36px 40px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 32px;
    align-items: center;
    max-width: 560px;
    width: 100%;
}

.qr-img {
    background: #fff;
    padding: 10px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.qr-img img {
    width: 180px;
    height: 180px;
    display: block;
}

.qr-text h3 {
    font-size: 22px;
    color: var(--color-gold);
    margin-bottom: 12px;
    font-weight: 600;
}

.qr-text p {
    font-size: 14px;
    line-height: 1.75;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 18px;
}

/* ============ 底部 ============ */
.site-footer {
    background: #061634;
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 0;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr 3fr;
    gap: 50px;
    padding-bottom: 60px;
}

.footer-brand .brand {
    color: #fff;
    margin-bottom: 22px;
}

.footer-brand .brand:hover { color: #fff; }

.footer-brand .brand-tagline {
    color: rgba(255, 255, 255, 0.6);
}

.footer-desc {
    font-size: 13.5px;
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 24px;
}

.footer-contact p {
    font-size: 13.5px;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.85);
}

.footer-contact a:hover {
    color: var(--color-gold);
}

.footer-col h4.footer-title {
    font-size: 15px;
    color: #fff;
    font-weight: 600;
    margin-bottom: 22px;
    letter-spacing: 0.08em;
    font-family: 'Noto Sans SC', sans-serif;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--color-gold);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 13.5px;
    transition: all 0.2s var(--ease);
    display: inline-block;
}

.footer-col ul a:hover {
    color: var(--color-gold);
    transform: translateX(3px);
}

.footer-wide {
    /* takes remaining grid space */
}

.footer-business {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px 16px;
}

.footer-business li {
    margin-bottom: 0;
}

.footer-business a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.footer-business a:hover {
    color: var(--color-gold);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 24px 0;
    background: rgba(0, 0, 0, 0.2);
}

.footer-bottom-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom-inner a {
    color: rgba(255, 255, 255, 0.7);
}

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