/* ============================================================
   Bonatone Theme — 极简高端企业官网
   配色: #A1151E (红) / #000 (黑) / #FFF (白)
   ============================================================ */

:root {
    --red: #A1151E;
    --red-light: rgba(161,21,30,0.06);
    --red-glow: rgba(161,21,30,0.03);
    --white: #FFFFFF;
    --black: #1A1A1A;
    --black-pure: #000000;
    --gray-50: #FAFAF9;
    --gray-100: #F5F5F3;
    --gray-200: #EBEBE8;
    --gray-300: #D4D4D0;
    --gray-400: #6E6E6E;
    --gray-500: #4A4A4A;
    --gray-600: #3A3A3A;
    --gray-700: #2A2A2A;
    --gray-800: #1F1F1F;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", -apple-system, BlinkMacSystemFont, sans-serif;
    --header-height: 64px;
    --transition-smooth: 0.5s cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-fast: 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.8;
    color: var(--black);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.3px;
    overflow-x: hidden;
}

a { color: var(--red); text-decoration: none; transition: var(--transition-fast); }
a:hover { color: var(--black); }
img { max-width: 100%; height: auto; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 48px; }
.container-narrow { max-width: 880px; margin: 0 auto; padding: 0 48px; }

/* ==================== HEADER — 参考 liuhw.vercel.app 风格 ==================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    box-shadow: none;
    transition: background .35s ease, backdrop-filter .35s ease, box-shadow .35s ease;
}

/* 滚动后：半透明磨砂玻璃 */
.site-header.scrolled {
    background: rgba(255,255,255,0.48);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    box-shadow: 0 4px 24px rgba(0,0,0,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

/* Logo */
.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}
.logo-img {
    height: 36px;
    width: auto;
    display: block;
}

/* 主导航 — ul/li 结构 */
.main-nav { display: block; }
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}
.nav-links li { display: block; }
.nav-links a {
    position: relative;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    transition: color .35s ease;
    letter-spacing: 0.02em;
    white-space: nowrap;
    padding: 4px 0;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.nav-links a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: #fff;
    transition: width .25s cubic-bezier(.4,0,.2,1), background .35s ease;
}
.nav-links a:hover {
    color: #fff;
}
.nav-links a:hover::after {
    width: 100%;
}
.nav-links a.active {
    color: #fff;
}
.nav-links a.active::after {
    width: 100%;
    background: #fff;
}

/* 滚动后导航链接样式 */
.site-header.scrolled .nav-links a {
    color: #000000;
    font-weight: 600;
    text-shadow: none;
}
.site-header.scrolled .nav-links a::after {
    background: var(--red);
}
.site-header.scrolled .nav-links a:hover,
.site-header.scrolled .nav-links a.active {
    color: var(--red);
}
.site-header.scrolled .nav-links a.active::after {
    background: var(--red);
}

/* 移动端汉堡菜单按钮 */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px 8px;
    background: none;
    border: none;
    border-radius: 0;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: background .2s ease;
}
.menu-toggle:hover {
    background: rgba(255,255,255,0.1);
}
.site-header.scrolled .menu-toggle:hover {
    background: rgba(0,0,0,0.05);
}
.menu-toggle .bar {
    display: block;
    width: 24px;
    height: 2.5px;
    background: #fff;
    border-radius: 0;
    transition: transform .28s cubic-bezier(.4,0,.2,1), opacity .2s ease, background .35s ease;
}
.site-header.scrolled .menu-toggle .bar {
    background: var(--black);
}

/* 汉堡菜单激活状态 — 变为 X */
.menu-toggle.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
}
.menu-toggle.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* 移动端导航面板 — 全屏遮罩 */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 999;
    background: rgba(255,255,255,0.82);
    -webkit-backdrop-filter: saturate(180%) blur(24px);
    backdrop-filter: saturate(180%) blur(24px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
}
.mobile-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.mobile-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
    list-style: none;
}
.mobile-links li {
    opacity: 0;
    transform: translateY(12px);
}
.mobile-overlay.active .mobile-links li {
    animation: linkIn .4s cubic-bezier(.4,0,.2,1) forwards;
}
.mobile-overlay.active .mobile-links li:nth-child(1) { animation-delay: .05s; }
.mobile-overlay.active .mobile-links li:nth-child(2) { animation-delay: .12s; }
.mobile-overlay.active .mobile-links li:nth-child(3) { animation-delay: .19s; }
.mobile-overlay.active .mobile-links li:nth-child(4) { animation-delay: .26s; }
.mobile-overlay.active .mobile-links li:nth-child(5) { animation-delay: .33s; }

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

.mobile-links a {
    position: relative;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--black);
    padding: 6px 4px;
    display: inline-block;
    transition: color .25s ease, transform .25s ease;
}
.mobile-links a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--black);
    transform: translateX(-50%);
    transition: width .25s cubic-bezier(.4,0,.2,1);
    border-radius: 0;
}
.mobile-links a:hover {
    transform: scale(1.05);
}
.mobile-links a:hover::after,
.mobile-links a.active::after {
    width: 70%;
}
.mobile-links a:active {
    opacity: 0.5;
    transform: scale(1.02);
}

/* 响应式 */
@media (max-width: 768px) {
    .header-inner {
        padding: 0 20px;
        height: 60px;
    }
    .nav-links { display: none; }
    .menu-toggle { display: flex; }
    .mobile-overlay { display: flex; }
}

@media (max-width: 480px) {
    .header-inner {
        padding: 0 16px;
        height: 54px;
    }
    .logo-img { height: 28px; }
    .mobile-links { gap: 24px; }
    .mobile-links a { font-size: 1.1rem; }
}

/* ==================== HERO — 通用 ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: #808080;
    background-size: cover;
    background-position: center;
    background-blend-mode: luminosity;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.55);
    z-index: 1;
}
/* 细密网格遮罩 — 高级质感 */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    opacity: 0.5;
    /* 双层细密网格：20px 粗线 + 4px 细线 */
    background-image:
        /* 主网格线 (20px) — 较亮 */
        repeating-linear-gradient(
            0deg, transparent, transparent 19.5px,
            rgba(255,255,255,0.06) 19.5px, rgba(255,255,255,0.06) 20px
        ),
        repeating-linear-gradient(
            90deg, transparent, transparent 19.5px,
            rgba(255,255,255,0.06) 19.5px, rgba(255,255,255,0.06) 20px
        ),
        /* 细网格线 (4px) — 更淡 */
        repeating-linear-gradient(
            0deg, transparent, transparent 3.5px,
            rgba(255,255,255,0.03) 3.5px, rgba(255,255,255,0.03) 4px
        ),
        repeating-linear-gradient(
            90deg, transparent, transparent 3.5px,
            rgba(255,255,255,0.03) 3.5px, rgba(255,255,255,0.03) 4px
        ),
        /* 噪点纹理 — 模拟胶片质感 */
        url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    background-size:
        20px 20px,
        20px 20px,
        4px 4px,
        4px 4px,
        256px 256px;
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 48px 80px;
}
/* 首页专用 — 左右分栏 */
.hero-row {
    display: flex;
    align-items: center;
    gap: 30px;
}
.hero-text {
    flex: 1 1 auto;
    min-width: 0;
}
.hero-image {
    flex: 0 0 550px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==================== 太阳系动画 ==================== */
.solar-system {
    position: relative;
    width: 550px;
    height: 550px;
}
/* 轨道环 */
.orbit {
    position: absolute;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.08);
    transform: translate(-50%, -50%);
    pointer-events: none;
}
.orbit-1  { width: 80px;   height: 80px; }
.orbit-2  { width: 130px;  height: 130px; }
.orbit-3  { width: 180px;  height: 180px; }
.orbit-4  { width: 230px;  height: 230px; }
.orbit-5  { width: 290px;  height: 290px; }
.orbit-6  { width: 350px;  height: 350px; }
.orbit-7  { width: 410px;  height: 410px; }
.orbit-8  { width: 470px;  height: 470px; }
.orbit-9  { width: 530px;  height: 530px; }

/* 太阳 */
.sun {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}
.sun-core {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: radial-gradient(circle at 40% 40%, #fff7c2, #ffb800 60%, #e67a00);
    box-shadow: 0 0 30px rgba(255,184,0,0.6), 0 0 60px rgba(255,140,0,0.3), 0 0 90px rgba(255,100,0,0.15);
    animation: sun-pulse 3s ease-in-out infinite;
}
.sun-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 90px;
    height: 90px;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,184,0,0.3) 0%, transparent 70%);
    animation: sun-glow 3s ease-in-out infinite;
}

/* 行星容器 */
.planet {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    animation: orbit var(--speed) linear infinite;
    z-index: 1;
}
/* 行星本体 */
.planet-body {
    position: absolute;
    transform: translate(-50%, -50%);
    border-radius: 50%;
}

/* 行星轨道距离 */
.planet-1  .planet-body { left: 40px; }
.planet-2  .planet-body { left: 65px; }
.planet-3  .planet-body { left: 90px; }
.planet-4  .planet-body { left: 115px; }
.planet-5  .planet-body { left: 145px; }
.planet-6  .planet-body { left: 175px; }
.planet-7  .planet-body { left: 205px; }
.planet-8  .planet-body { left: 235px; }
.planet-9  .planet-body { left: 265px; }

/* 行星颜色和大小 */
.mercury { width: 6px;  height: 6px;  background: #b0b0b0; box-shadow: 0 0 4px rgba(176,176,176,0.4); }
.venus   { width: 10px; height: 10px; background: #f0d78c; box-shadow: 0 0 6px rgba(240,215,140,0.5); }
.earth   { width: 12px; height: 12px; background: #4da6ff; box-shadow: 0 0 8px rgba(77,166,255,0.5), 0 0 15px rgba(77,166,255,0.2); }
.mars    { width: 9px;  height: 9px;  background: #e0603a; box-shadow: 0 0 5px rgba(224,96,58,0.5); }
.jupiter { width: 24px; height: 24px; background: linear-gradient(135deg, #e8c67a, #d4a24e, #c4883c); box-shadow: 0 0 12px rgba(232,198,122,0.4); }
.saturn  { width: 18px; height: 18px; background: #e8d5a3; box-shadow: 0 0 8px rgba(232,213,163,0.4); }
.uranus  { width: 14px; height: 14px; background: #7ec8e3; box-shadow: 0 0 8px rgba(126,200,227,0.5); }
.neptune { width: 14px; height: 14px; background: #3355cc; box-shadow: 0 0 8px rgba(51,85,204,0.5); }
.pluto   { width: 5px;  height: 5px;  background: #d4b8d8; box-shadow: 0 0 3px rgba(212,184,216,0.4); }

/* 土星光环 */
.planet-6 .planet-body::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 30px;
    height: 30px;
    transform: translate(-50%, -50%) rotateX(75deg);
    border-radius: 50%;
    border: 2.5px solid rgba(232,213,163,0.4);
    pointer-events: none;
}

/* 轨道动画 */
@keyframes orbit {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}
@keyframes sun-pulse {
    0%, 100% { box-shadow: 0 0 30px rgba(255,184,0,0.6), 0 0 60px rgba(255,140,0,0.3), 0 0 90px rgba(255,100,0,0.15); }
    50%      { box-shadow: 0 0 45px rgba(255,184,0,0.8), 0 0 80px rgba(255,140,0,0.4), 0 0 110px rgba(255,100,0,0.2); }
}
@keyframes sun-glow {
    0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
    50%      { opacity: 1;   transform: translate(-50%, -50%) scale(1.2); }
}
.hero-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--red);
    letter-spacing: 5px;
    text-transform: uppercase;
    margin-bottom: 32px;
}
.hero-title {
    font-size: 80px;
    font-weight: 200;
    line-height: 1.1;
    color: #fff;
    margin-bottom: 32px;
    letter-spacing: -1px;
}
.hero-title strong { font-weight: 600; }
.hero-line {
    width: 80px;
    height: 1px;
    background: var(--red);
    margin-bottom: 32px;
}
.hero-desc {
    font-size: 18px;
    color: rgba(255,255,255,0.82);
    line-height: 2;
    margin-bottom: 48px;
    font-weight: 300;
}
.hero-actions {
    display: flex;
    gap: 32px;
    align-items: center;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-fast);
    cursor: pointer;
    letter-spacing: 1px;
    border: none;
    background: none;
    padding: 0;
    font-family: var(--font-sans);
}
.btn-primary { color: var(--red); }
.btn-primary:hover { letter-spacing: 2px; color: var(--red);}
.btn-primary::after { content: '→'; transition: var(--transition-fast); }
.btn-primary:hover::after { transform: translateX(4px); }
.btn-outline {
    color: rgba(255,255,255,0.85);
}
.btn-outline:hover { color: #fff; }

/* 工具类 */
.text-center { text-align: center; }

/* ==================== SECTIONS ==================== */
.section { padding: 80px 0; }
.section-bg { background: var(--gray-50); }
.section-dark {
    background-color: var(--black);
    background-image:
        repeating-linear-gradient(135deg, transparent, transparent 4px, rgba(255,255,255,0.03) 4px, rgba(255,255,255,0.03) 5px),
        repeating-linear-gradient(45deg, transparent, transparent 4px, rgba(255,255,255,0.03) 4px, rgba(255,255,255,0.03) 5px);
    background-size: 8px 8px;
    color: #fff;
}
.section-alt { background: var(--gray-50); }
.section-gray { background: var(--gray-50); }

.section-header { margin-bottom: 80px; }
.section-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--red);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 20px;
}
.section-title {
    font-size: 42px;
    font-weight: 300;
    letter-spacing: -0.5px;
    margin-bottom: 20px;
    color: inherit;
}
.section-title strong { font-weight: 600; }
.section-line {
    width: 40px;
    height: 1px;
    background: var(--red);
    margin-bottom: 24px;
}
.section-subtitle {
    font-size: 16px;
    color: var(--gray-400);
    font-weight: 300;
    line-height: 1.9;
}
.section-dark .section-subtitle { color: rgba(255,255,255,0.7); }

/* ==================== PRODUCTS PAGE ==================== */
#platform-2 { background: var(--gray-50); }

/* --- 架构模块卡片布局 --- */
.arch-modules {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 56px;
}
.arch-card {
    background: #fff;
    border: 1px solid var(--gray-100);
    padding: 32px 28px;
    transition: border-color .3s ease, box-shadow .3s ease;
}
.arch-card:hover {
    border-color: var(--red);
    box-shadow: 0 6px 24px rgba(0,0,0,0.05);
}
.arch-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
    position: relative;
    padding-left: 14px;
}
.arch-card-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    background: var(--red);
}
.arch-card-desc {
    font-size: 14px;
    color: var(--gray-500);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 14px;
}
.arch-card-tags {
    font-size: 12px;
    color: var(--gray-400);
    font-weight: 300;
    line-height: 1.6;
}

/* ==================== SOLUTIONS PAGE ==================== */
.solutions-layout {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
}
.solution-card { text-align: center; text-decoration: none; color: inherit; display: block; }
.solution-card-link {
    display: inline-block;
    margin-top: 16px;
    font-size: 13px;
    color: var(--red);
    font-weight: 400;
    letter-spacing: 0.5px;
    opacity: 0;
    transform: translateY(4px);
    transition: all var(--transition-fast);
}
.solution-card:hover .solution-card-link {
    opacity: 1;
    transform: translateY(0);
}
.solution-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 28px;
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    transition: var(--transition-fast);
}
.solution-card:hover .solution-card-icon {
    border-color: var(--red);
    background: var(--red-light);
}
.solution-card-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--black);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}
.solution-card-subtitle {
    font-size: 13px;
    color: var(--gray-400);
    font-weight: 300;
}

/* ==================== SERVICES PAGE ==================== */
.services-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}
.service-card { padding: 0; }
.service-card-num {
    font-size: 14px;
    font-weight: 300;
    color: var(--gray-400);
    margin-bottom: 24px;
    letter-spacing: 1px;
}
.service-card-title {
    font-size: 24px;
    font-weight: 500;
    margin-bottom: 16px;
    color: var(--black);
}
.service-card-desc {
    font-size: 14px;
    color: var(--gray-500);
    font-weight: 300;
    line-height: 2;
}
.service-card-link {
    display: inline-block;
    margin-top: 24px;
    font-size: 13px;
    color: var(--red);
    font-weight: 500;
    letter-spacing: 1px;
    transition: var(--transition-fast);
}
.service-card-link:hover { letter-spacing: 2px; }
.service-card-divider {
    width: 100%;
    height: 1px;
    background: var(--gray-200);
    margin-top: 32px;
    transition: var(--transition-fast);
}
.service-card:hover .service-card-divider { background: var(--red); }

/* ==================== COMPANY PAGE ==================== */
/* --- 公司介绍 --- */
.company-intro {
    margin: 0 auto;
}
.company-intro p {
    font-size: 15px;
    color: var(--gray-800);
    font-weight: 300;
    line-height: 2.2;
    margin-bottom: 24px;
}
.company-image-full {
    margin-top: 40px;
    text-align: center;
}
.company-image-full img {
    max-width: 50%;
    height: auto;
    max-height: 400px;
}

/* --- 经营理念 --- */
#philosophy-section {
    background: var(--gray-50);
}
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 960px;
    margin: 0 auto;
}
.philosophy-card {
    background: #fff;
    padding: 48px 36px;
    text-align: center;
    border: 1px solid var(--gray-100);
    transition: transform .3s ease, box-shadow .3s ease;
}
.philosophy-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}
.philosophy-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    font-size: 18px;
    font-weight: 600;
    color: var(--red);
    border: 2px solid var(--red);
    margin-bottom: 24px;
    letter-spacing: 1px;
}
.philosophy-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
}
.philosophy-card p {
    font-size: 14px;
    color: var(--gray-400);
    font-weight: 300;
    line-height: 1.8;
}

/* --- 联系方式 --- */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 680px;
    margin: 0 auto;
}
.contact-card {
    background: var(--gray-50);
    padding: 40px 28px;
    text-align: center;
    border: 1px solid var(--gray-100);
    transition: border-color .3s ease;
}
.contact-card:hover {
    border-color: var(--red);
}
.contact-card-icon {
    width: 36px;
    height: 36px;
    color: var(--red);
    margin-bottom: 16px;
}
.contact-card-label {
    font-size: 11px;
    color: var(--red);
    font-weight: 500;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 8px;
}
.contact-card-value {
    font-size: 15px;
    color: var(--black);
    font-weight: 400;
}
.offices-section {
    max-width: 700px;
    margin: 56px auto 0;
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--gray-200);
}
.offices-section h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 16px;
}
.offices-section p {
    font-size: 14px;
    color: var(--gray-800);
    font-weight: 300;
    line-height: 1.9;
}

/* ==================== FRONT PAGE — 最新动态 ==================== */
.front-news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
}
.news-empty {
    color: var(--gray-400);
    font-size: 14px;
    font-weight: 300;
}

/* ==================== NEWS / BLOG PAGE ==================== */
.news-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}
.news-card { transition: var(--transition-fast); }
.news-card:hover { transform: translateY(-4px); }
.news-card-image {
    height: 240px;
    background: var(--gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 13px;
    margin-bottom: 28px;
    letter-spacing: 1px;
    font-weight: 300;
    overflow: hidden;
}
.news-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news-card-date {
    font-size: 12px;
    color: var(--gray-400);
    letter-spacing: 2px;
    margin-bottom: 12px;
    font-weight: 300;
}
.news-card-title {
    font-size: 20px;
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 12px;
}
.news-card-title a { color: var(--black); }
.news-card-title a:hover { color: var(--red); }
.news-card-excerpt {
    font-size: 14px;
    color: var(--gray-500);
    font-weight: 300;
    line-height: 1.9;
}
.news-more { margin-top: 64px; text-align: center; }

/* News pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 64px;
}
.pagination .page-numbers {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 13px;
    font-weight: 300;
    color: var(--gray-500);
    border: 1px solid var(--gray-200);
    transition: var(--transition-fast);
}
.pagination .page-numbers.current {
    color: var(--red);
    border-color: var(--red);
}
.pagination .page-numbers:hover {
    color: var(--red);
    border-color: var(--red);
}

/* ==================== SINGLE POST ==================== */
.single-post-header {
    padding: 160px 0 80px;
    text-align: center;
}
.single-post-header .post-date {
    font-size: 12px;
    color: var(--gray-400);
    letter-spacing: 2px;
    margin-bottom: 16px;
    font-weight: 300;
}
.single-post-header .post-title {
    font-size: 42px;
    font-weight: 300;
    line-height: 1.3;
    max-width: 720px;
    margin: 0 auto;
    color: var(--black);
}
.single-post-header .post-title strong { font-weight: 600; }
.post-content {
    font-size: 16px;
    color: var(--gray-700);
    font-weight: 300;
    line-height: 2.2;
}
.post-content h2 {
    font-size: 28px;
    font-weight: 500;
    color: var(--black);
    margin: 48px 0 20px;
}
.post-content h3 {
    font-size: 22px;
    font-weight: 500;
    color: var(--black);
    margin: 36px 0 16px;
}
.post-content p { margin-bottom: 24px; }
.post-content img { margin: 32px 0; }
.post-content blockquote {
    border-left: 2px solid var(--red);
    padding: 16px 24px;
    margin: 32px 0;
    background: var(--gray-50);
    color: var(--gray-600);
    font-style: italic;
}
.post-content ul, .post-content ol { margin: 20px 0 20px 24px; }
.post-content li { margin-bottom: 8px; }

.post-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--gray-400);
    font-weight: 300;
    letter-spacing: 1px;
    margin-top: 64px;
    transition: var(--transition-fast);
}
.post-back:hover { color: var(--red); letter-spacing: 2px; }

/* ==================== FOOTER ==================== */
.site-footer {
    background: var(--black-pure);
    color: rgba(255,255,255,0.75);
    padding: 80px 0 32px;
}
.site-footer a { color: rgba(255,255,255,0.75); }
.site-footer a:hover { color: var(--red); }

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}
.footer-col h4 {
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1.5px;
    margin-bottom: 24px;
    padding-top: 24px;
    text-transform: uppercase;
}
.footer-col p {
    font-size: 14px;
    line-height: 1.8;
    font-weight: 400;
}
.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    list-style: none;
    padding: 0;
}
.footer-links a {
    font-size: 14px;
    font-weight: 400;
    transition: var(--transition-fast);
    text-decoration: none;
}
.footer-links a:hover { padding-left: 8px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    font-size: 13px;
    color: rgba(255,255,255,0.85);
    font-weight: 300;
    text-align: center;
    font-weight: 300;
    letter-spacing: 1px;
}

/* ==================== 404 PAGE ==================== */
.error-404 {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--gray-50);
}
.error-404-content h1 {
    font-size: 120px;
    font-weight: 100;
    color: var(--red-glow);
    line-height: 1;
    margin-bottom: 16px;
}
.error-404-content h2 {
    font-size: 28px;
    font-weight: 300;
    margin-bottom: 16px;
    color: var(--black);
}
.error-404-content p {
    font-size: 15px;
    color: var(--gray-400);
    font-weight: 300;
    margin-bottom: 32px;
}

/* ==================== COMPANY — 公司资质 ==================== */
/* 资质能力图谱 */
.qual-chart {
    max-width: 720px;
    margin: 0 auto 64px;
    padding: 36px 40px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 4px;
}
.qual-chart-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 28px;
}
.qual-chart-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--black);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.qual-chart-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 16px;
    background: var(--red);
    border-radius: 2px;
}
.qual-chart-sub {
    font-size: 12px;
    color: var(--gray-400);
    font-weight: 300;
    letter-spacing: 0.5px;
}

.qual-bar-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.qual-bar-item {
    display: flex;
    align-items: center;
    gap: 16px;
}
.qual-bar-label {
    width: 130px;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
    text-align: right;
    letter-spacing: 0.5px;
}
.qual-bar-track {
    flex: 1;
    height: 8px;
    background: var(--gray-100);
    border-radius: 4px;
    overflow: hidden;
}
.qual-bar-fill {
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(90deg, #C81A25, #A1151E);
    transition: width 1.2s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.qual-bar-score {
    width: 44px;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--red);
    text-align: left;
}

/* 资质证书卡片网格 */
.qual-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    margin-bottom: 56px;
}
.qual-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 36px 24px 32px;
    text-align: center;
    transition: all var(--transition-fast);
}
.qual-card:hover {
    border-color: var(--red);
    box-shadow: 0 8px 32px rgba(161,21,30,0.08);
    transform: translateY(-3px);
}
.qual-badge {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--red);
    background: var(--red-light);
    border-radius: 50%;
    transition: all var(--transition-fast);
}
.qual-card:hover .qual-badge {
    background: var(--red);
    color: #fff;
    box-shadow: 0 6px 20px rgba(161,21,30,0.25);
}
.qual-badge svg {
    width: 30px;
    height: 30px;
}
.qual-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}
.qual-name {
    font-size: 17px;
    font-weight: 600;
    color: var(--black);
    letter-spacing: 0.5px;
    margin: 0;
    line-height: 1.3;
}
.qual-desc {
    font-size: 12px;
    color: var(--gray-500);
    font-weight: 300;
    line-height: 1.5;
    margin: 0;
}
.qual-authority {
    font-size: 11px;
    color: var(--gray-400);
    font-weight: 300;
    margin: 4px 0 8px;
    letter-spacing: 0.3px;
}
.qual-tag {
    display: inline-block;
    padding: 3px 12px;
    font-size: 11px;
    color: var(--red);
    background: var(--red-light);
    font-weight: 400;
    letter-spacing: 0.5px;
    border-radius: 2px;
}

/* 认证价值汇总 */
.qual-summary {
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 32px 40px;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
}
.qual-summary-item {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.qual-summary-item strong {
    font-size: 28px;
    font-weight: 200;
    color: var(--red);
    letter-spacing: -1px;
    line-height: 1;
}
.qual-summary-item span {
    font-size: 12px;
    color: var(--gray-500);
    font-weight: 300;
    letter-spacing: 0.5px;
}
.qual-summary-divider {
    width: 1px;
    height: 40px;
    background: var(--gray-300);
    flex-shrink: 0;
}

/* ==================== COMPANY — 主要客户 ==================== */
.client-categories {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}
.client-cat {
    padding: 8px 24px;
    font-size: 13px;
    color: var(--gray-500);
    background: var(--white);
    border: 1px solid var(--gray-200);
    cursor: default;
    transition: all var(--transition-fast);
    font-weight: 400;
    letter-spacing: 0.5px;
}
.client-cat.active,
.client-cat:hover {
    color: var(--red);
    border-color: var(--red);
    background: var(--red-light);
}

.client-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    margin-bottom: 48px;
}
.client-card {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    text-align: center;
    transition: all var(--transition-fast);
    min-height: 80px;
}
.client-card:hover {
    border-color: var(--red);
    box-shadow: 0 4px 20px rgba(161,21,30,0.08);
    transform: translateY(-2px);
}
.client-card span {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    letter-spacing: 0.5px;
    line-height: 1.4;
}
.client-card:hover span {
    color: var(--black);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .hero-title { font-size: 52px; }
    .section-title { font-size: 34px; }
    .solutions-layout { grid-template-columns: repeat(2, 1fr); }
    .arch-modules { grid-template-columns: repeat(2, 1fr); }
    .philosophy-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .news-layout { grid-template-columns: repeat(2, 1fr); }
    .front-news-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ==================== HOME — 业务概览卡片 ==================== */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.overview-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 40px 32px;
    background: #fff;
    border-radius: 0;
    border: 1px solid var(--gray-100);
    text-decoration: none;
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.overview-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
    border-color: rgba(0,0,0,0.12);
}
.overview-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 0;
    background: var(--gray-50);
    color: var(--red);
    transition: background .25s ease;
}
.overview-card:hover .overview-icon {
    background: var(--red-light);
}
.overview-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--black);
    letter-spacing: 0.5px;
    margin: 0;
}
.overview-desc {
    font-size: 13px;
    line-height: 1.7;
    color: var(--gray-500);
    margin: 0;
}

/* 数据亮点 */
.stats-row {
    display: flex;
    justify-content: center;
    gap: 80px;
}
.stat-item {
    text-align: center;
}
.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 200;
    color: var(--red);
    letter-spacing: -1px;
    line-height: 1.1;
}
.stat-number small {
    font-size: 24px;
    font-weight: 300;
}
.stat-label {
    display: block;
    margin-top: 8px;
    font-size: 13px;
    color: var(--gray-500);
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .container, .container-narrow { padding: 0 24px; }
    .header-inner { padding: 0 24px; }
    
    .hero { min-height: auto; }
    .hero-content { padding: 100px 24px 60px; text-align: center; }
    .hero-row { flex-direction: column; gap: 40px; }
    .hero-text { max-width: 100%; }
    .hero-image { flex: 0 0 auto; }
    .solar-system { width: 320px; height: 320px; }
    .hero-img { max-width: 280px; }
    .hero-actions { justify-content: center; }
    .hero-line { margin: 16px auto; }
    .hero-title { font-size: 38px; }
    .hero-desc { font-size: 16px; }
    
    .section { padding: 80px 0; }
    .section-title { font-size: 28px; }
    .section-header { margin-bottom: 48px; }

    .overview-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .overview-card { padding: 28px 24px; }
    .stats-row { gap: 40px; flex-wrap: wrap; }
    .stat-number { font-size: 36px; }
    .stat-number small { font-size: 20px; }
    
    .arch-modules { grid-template-columns: 1fr; gap: 16px; }
    
    .solutions-layout { gap: 40px; }
    .services-layout { grid-template-columns: 1fr; }
    .news-layout { grid-template-columns: 1fr; }
    .front-news-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; gap: 24px; }
    .philosophy-card { padding: 36px 28px; }
    
    .single-post-header { padding: 120px 0 48px; }
    .single-post-header .post-title { font-size: 28px; }
    
    .error-404-content h1 { font-size: 80px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 30px; }
    .hero-actions { flex-direction: column; align-items: flex-start; gap: 20px; }
    .section-title { font-size: 24px; }
    .overview-grid { grid-template-columns: 1fr; }
    .overview-card { padding: 24px 20px; }
    .stats-row { gap: 24px; }
    .stat-item { flex: 1 0 40%; }
    .stat-number { font-size: 30px; }
    .stat-number small { font-size: 18px; }
    .solutions-layout { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ========================================================================
   服务能力页样式
   ======================================================================== */

/* 服务区块 */
.svc-block {
    padding: 80px 0;
}
.svc-block-gray {
    background: var(--gray-50);
}

/* 服务头部 */
.svc-head {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 48px;
}
.svc-num {
    font-size: 64px;
    font-weight: 200;
    color: var(--red);
    line-height: 1;
    letter-spacing: -2px;
    flex-shrink: 0;
}
.svc-head h3 {
    font-size: 32px;
    font-weight: 600;
    color: var(--black);
    letter-spacing: 1px;
    margin-bottom: 6px;
}
.svc-head-sub {
    font-size: 14px;
    color: var(--gray-500);
    font-weight: 300;
    letter-spacing: 0.5px;
    margin: 0;
}

/* 服务流程图 */
.svc-flow {
    display: flex;
    align-items: flex-start;
    gap: 0;
    margin-bottom: 48px;
    padding: 36px 40px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 4px;
}
.svc-flow-step {
    flex: 1;
    text-align: center;
    min-width: 0;
}
.svc-flow-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red-light);
    color: var(--red);
    border-radius: 50%;
    transition: transform var(--transition-fast);
}
.svc-flow-step:hover .svc-flow-icon {
    transform: scale(1.1);
}
.svc-flow-step .svc-flow-title {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 6px;
    letter-spacing: 0.5px;
}
.svc-flow-step .svc-flow-desc {
    display: block;
    font-size: 12px;
    color: var(--gray-500);
    font-weight: 300;
    line-height: 1.6;
}
.svc-flow-arrow {
    display: flex;
    align-items: center;
    padding-top: 14px;
    color: var(--gray-300);
    font-size: 22px;
    flex-shrink: 0;
    font-weight: 200;
}

/* 能力图谱 */
.svc-chart {
    margin-bottom: 40px;
}
.svc-chart-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 20px;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.svc-chart-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 16px;
    background: var(--red);
    border-radius: 2px;
}
.svc-chart-row {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 14px;
}
.svc-chart-label {
    width: 155px;
    flex-shrink: 0;
    font-size: 13px;
    color: var(--gray-600);
    font-weight: 500;
    text-align: right;
    letter-spacing: 0.5px;
}
.svc-chart-bar-wrap {
    flex: 1;
    height: 9px;
    background: var(--gray-100);
    border-radius: 5px;
    overflow: hidden;
}
.svc-chart-bar {
    height: 100%;
    border-radius: 5px;
    background: linear-gradient(90deg, #C81A25, #A1151E);
    transition: width 1.2s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.svc-chart-val {
    width: 42px;
    flex-shrink: 0;
    font-size: 13px;
    color: var(--red);
    font-weight: 600;
    text-align: left;
}

/* 提供服务与选择理由 */
.svc-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}
.svc-bottom-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 16px;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.svc-bottom-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 16px;
    background: var(--red);
    border-radius: 2px;
}

/* 服务标签 */
.svc-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.svc-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    font-size: 13px;
    color: var(--gray-600);
    font-weight: 300;
    letter-spacing: 0.5px;
    transition: all var(--transition-fast);
}
.svc-tag:hover {
    border-color: var(--red);
    color: var(--red);
    background: var(--red-light);
}
.svc-tag-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--red);
    flex-shrink: 0;
}

/* 选择理由 */
.svc-reasons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.svc-reason {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 18px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-fast);
}
.svc-reason:hover {
    border-color: var(--red);
    box-shadow: 0 2px 12px rgba(161,21,30,0.05);
}
.svc-reason-icon {
    width: 34px;
    height: 34px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red-light);
    color: var(--red);
    border-radius: 2px;
    margin-top: 1px;
}
.svc-reason-body {
    flex: 1;
    min-width: 0;
}
.svc-reason-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 3px;
    letter-spacing: 0.5px;
}
.svc-reason-desc {
    font-size: 12px;
    color: var(--gray-500);
    line-height: 1.6;
    font-weight: 300;
    margin: 0;
}

/* 行业痛点卡片网格 */
.pain-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.pain-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 40px 32px;
    transition: all var(--transition-fast);
}
.pain-card:hover {
    border-color: var(--red);
    box-shadow: 0 4px 24px rgba(161,21,30,0.06);
    transform: translateY(-2px);
}
.pain-card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--red-light);
    color: var(--red);
    margin-bottom: 24px;
}
.pain-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}
.pain-card-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.9;
    font-weight: 300;
}

/* 方案功能列表 */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.feature-item {
    display: flex;
    gap: 32px;
    background: var(--white);
    padding: 40px;
    border-left: 2px solid transparent;
    transition: all var(--transition-fast);
}
.feature-item:hover {
    border-left-color: var(--red);
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
}
.feature-num {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 200;
    color: var(--red);
    border: 1px solid rgba(161,21,30,0.15);
    letter-spacing: 1px;
}
.feature-body {
    flex: 1;
    min-width: 0;
}
.feature-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}
.feature-desc {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.9;
    font-weight: 300;
    margin-bottom: 16px;
}
.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.feature-tags span {
    display: inline-block;
    padding: 4px 14px;
    font-size: 12px;
    color: var(--gray-500);
    background: var(--gray-100);
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* 方案优势图表 */
.adv-chart {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}
.adv-chart-row {
    display: flex;
    align-items: center;
    gap: 0;
    padding: 0;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--gray-100);
    position: relative;
}
.adv-chart-row:last-child {
    border-bottom: none;
}
.adv-chart-row:hover {
    background: var(--gray-50);
}
.adv-chart-label {
    width: 200px;
    flex-shrink: 0;
    padding: 28px 0 28px 32px;
    font-size: 14px;
    font-weight: 600;
    color: var(--black);
    letter-spacing: 0.5px;
    line-height: 1.4;
}
.adv-chart-body {
    flex: 1;
    min-width: 0;
    padding: 28px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.adv-chart-bar-wrap {
    width: 100%;
    height: 10px;
    background: var(--gray-100);
    border-radius: 5px;
    overflow: hidden;
    position: relative;
}
.adv-chart-bar {
    height: 100%;
    border-radius: 5px;
    background: linear-gradient(90deg, #C81A25, #A1151E);
    position: relative;
    transition: width 1s cubic-bezier(0.25, 0.1, 0.25, 1);
    min-width: 4px;
}
.adv-chart-bar::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 3px;
    height: 100%;
    background: rgba(255,255,255,0.4);
    border-radius: 0 5px 5px 0;
}
.adv-chart-desc {
    font-size: 12px;
    color: var(--gray-500);
    font-weight: 300;
    line-height: 1.6;
    padding-right: 8px;
}
.adv-chart-value {
    width: 100px;
    flex-shrink: 0;
    text-align: right;
    padding: 28px 32px 28px 0;
    font-size: 28px;
    font-weight: 200;
    color: var(--red);
    letter-spacing: -1px;
    line-height: 1;
}
.adv-chart-value small {
    font-size: 16px;
    font-weight: 300;
    color: var(--red);
}

/* 图表页脚汇总 */
.adv-chart-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    padding: 20px 32px;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    font-size: 13px;
    color: var(--gray-500);
    font-weight: 300;
    letter-spacing: 0.5px;
}
.adv-chart-footer strong {
    color: var(--red);
    font-weight: 600;
    font-size: 18px;
}

/* 未来展望卡片 */
.vision-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.vision-card {
    padding: 40px 32px;
    border: 1px solid rgba(255,255,255,0.1);
    transition: all var(--transition-fast);
}
.vision-card:hover {
    border-color: rgba(255,255,255,0.25);
    background: rgba(255,255,255,0.03);
}
.vision-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--red);
    margin-bottom: 24px;
}
.vision-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}
.vision-card-desc {
    font-size: 14px;
    color: rgba(255,255,255,0.65);
    line-height: 1.8;
    font-weight: 300;
}

/* 方案详情页响应式 */
@media (max-width: 1024px) {
    .pain-grid { grid-template-columns: 1fr; gap: 16px; }
    .adv-chart { max-width: 100%; }
    .vision-grid { grid-template-columns: 1fr; }
    .feature-item { flex-direction: column; gap: 20px; padding: 32px 28px; }
    .svc-bottom { grid-template-columns: 1fr; }
    .svc-flow { flex-wrap: wrap; gap: 0; padding: 28px 24px; }
    .svc-flow-arrow { display: none; }
    .svc-flow-step { flex: 1 0 45%; margin-bottom: 20px; }
    .qual-grid { grid-template-columns: repeat(3, 1fr); }
    .qual-card:nth-child(4),
    .qual-card:nth-child(5) { grid-column: auto; }
    .qual-chart { padding: 28px 28px; }
    .client-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 768px) {
    .pain-card { padding: 28px 24px; }
    .pain-card-icon { width: 44px; height: 44px; margin-bottom: 16px; }
    .adv-chart-label { width: 140px; padding-left: 20px; font-size: 13px; }
    .adv-chart-value { width: 70px; padding-right: 20px; font-size: 22px; }
    .adv-chart-value small { font-size: 13px; }
    .adv-chart-body { padding-right: 16px; }
    .adv-chart-desc { font-size: 11px; }
    .adv-chart-footer { flex-wrap: wrap; gap: 16px; text-align: center; }
    .feature-item { padding: 28px 24px; }
    .vision-card { padding: 28px 24px; }
    .vision-grid { grid-template-columns: 1fr; }
    .svc-block { padding: 56px 0; }
    .svc-head { flex-direction: column; align-items: flex-start; gap: 12px; }
    .svc-num { font-size: 44px; }
    .svc-head h3 { font-size: 24px; }
    .svc-flow { padding: 24px 16px; }
    .svc-flow-step { flex: 1 0 45%; }
    .svc-chart-label { width: 120px; font-size: 12px; }
    .svc-chart-val { width: 36px; font-size: 12px; }
    .svc-bottom { grid-template-columns: 1fr; gap: 24px; }
    .svc-tag { padding: 7px 14px; font-size: 12px; }
    .qual-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .qual-chart { padding: 24px 20px; }
    .qual-bar-label { width: 100px; font-size: 12px; }
    .qual-card { padding: 28px 18px 24px; }
    .qual-name { font-size: 15px; }
    .qual-summary { max-width: 100%; padding: 24px 20px; }
    .qual-summary-item strong { font-size: 24px; }
    .client-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .client-card { padding: 18px 12px; min-height: 64px; }
    .client-card span { font-size: 13px; }
    .client-categories { margin-bottom: 32px; }
    .client-cat { padding: 6px 16px; font-size: 12px; }
}
@media (max-width: 480px) {
    .adv-chart-row { flex-wrap: wrap; }
    .adv-chart-label { width: 100%; padding: 16px 20px 6px; }
    .adv-chart-body { width: calc(100% - 80px); padding: 6px 0 16px 20px; }
    .adv-chart-value { width: 70px; padding: 16px 20px 6px 0; align-self: flex-start; }
    .adv-chart-bar-wrap { height: 8px; }
    .svc-flow-step { flex: 1 0 100%; margin-bottom: 16px; }
    .svc-chart-label { width: 100px; }
    .svc-chart-row { gap: 10px; }
    .svc-bottom { grid-template-columns: 1fr; }
    .qual-grid { grid-template-columns: 1fr; }
    .qual-card { padding: 32px 24px 28px; }
    .qual-bar-item { flex-wrap: wrap; }
    .qual-bar-label { width: 100%; text-align: left; margin-bottom: 4px; }
    .qual-bar-track { flex: 1 1 calc(100% - 60px); }
    .qual-bar-score { width: 40px; font-size: 12px; }
    .qual-summary { flex-direction: column; gap: 20px; }
    .qual-summary-divider { width: 80%; height: 1px; }
    .qual-chart { padding: 20px 16px; }
    .qual-chart-header { flex-direction: column; align-items: flex-start; gap: 6px; }
    .client-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .client-card { padding: 14px 10px; min-height: 56px; }
    .client-card span { font-size: 12px; }
    .client-categories { gap: 6px; }
    .client-cat { padding: 5px 12px; font-size: 11px; }
}