/* ============================================================
   延安伟恩科技有限公司 · 全局样式
   设计方向：墨蓝 × 纸白 × 金 —— 编辑级科技美学（Editorial Tech）
   特征：宋体大标题 / 发丝线 / 超大编号 / 宽松留白 / 精致微交互
   ============================================================ */

:root {
    /* ---- 墨蓝墨色系统 ---- */
    --ink: #0A1B3D;
    --ink-deep: #050F28;
    --ink-800: #10295A;
    --ink-700: #1A3A75;
    --azure: #2E6DA8;
    --azure-soft: #5B8FC4;
    --gold: #B08D3E;
    --gold-bright: #D9B86A;

    /* ---- 纸白系统 ---- */
    --paper: #F7F5EF;
    --paper-deep: #EFEBE1;
    --surface: #FFFFFF;

    /* ---- 文字 ---- */
    --text: #16233B;
    --text-2: #4A586F;
    --text-3: #7B879B;
    --text-on-dark: #F4F1E8;
    --text-on-dark-2: rgba(244, 241, 232, .68);

    /* ---- 发丝线 ---- */
    --hairline: rgba(10, 27, 61, .12);
    --hairline-strong: rgba(10, 27, 61, .24);
    --hairline-light: rgba(255, 255, 255, .16);

    /* ---- 字体 ---- */
    --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
    --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;

    /* ---- 渐变 ---- */
    --grad-ink: linear-gradient(135deg, var(--ink-deep) 0%, var(--ink) 45%, var(--ink-800) 100%);
    --grad-gold: linear-gradient(135deg, #C9A227 0%, var(--gold) 55%, #8F7028 100%);
    --grad-azure: linear-gradient(135deg, var(--ink-700) 0%, var(--azure) 100%);
    --grad-card-sheen: linear-gradient(180deg, rgba(255,255,255,.08) 0%, rgba(255,255,255,0) 40%);

    /* ---- 阴影（克制） ---- */
    --shadow-xs: 0 1px 2px rgba(10, 27, 61, .05);
    --shadow-sm: 0 2px 8px rgba(10, 27, 61, .06);
    --shadow-md: 0 8px 24px rgba(10, 27, 61, .08);
    --shadow-lg: 0 20px 48px -12px rgba(10, 27, 61, .16);
    --shadow-xl: 0 32px 80px -16px rgba(5, 15, 40, .35);

    /* ---- 间距 ---- */
    --space-xs: .25rem;
    --space-sm: .5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4.5rem;
    --space-4xl: 7rem;

    /* ---- 圆角 ---- */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-2xl: 28px;
    --radius-full: 9999px;

    /* ---- 动画 ---- */
    --ease-out: cubic-bezier(.22, 1, .36, 1);
    --transition-fast: 160ms var(--ease-out);
    --transition-base: 320ms var(--ease-out);
    --transition-slow: 560ms var(--ease-out);

    /* ---- 容器 ---- */
    --container-max: 1240px;
    --container-padding: 1.5rem;
    --nav-h: 76px;

    /* ---- 旧变量别名（兼容历史 html 片段） ---- */
    --color-primary: var(--ink);
    --color-primary-dark: var(--ink-deep);
    --color-primary-light: var(--ink-800);
    --color-accent: var(--azure);
    --color-accent-light: var(--azure-soft);
    --color-gold: var(--gold);
    --color-bg: var(--paper);
    --color-bg-dark: var(--ink-deep);
    --color-surface: var(--surface);
    --color-surface-alt: var(--paper-deep);
    --color-border: var(--hairline);
    --color-border-dark: var(--hairline-strong);
    --color-text: var(--text);
    --color-text-secondary: var(--text-2);
    --color-text-muted: var(--text-3);
    --color-text-light: #D8DDE8;
    --color-text-on-dark: var(--text-on-dark);
    --gradient-primary: var(--grad-ink);
    --gradient-hero: var(--grad-ink);
    --gradient-card: linear-gradient(180deg, #fff 0%, var(--paper) 100%);
    --gradient-accent: var(--grad-azure);
    --shadow-card-hover: var(--shadow-lg);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background-color: var(--paper);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

::selection { background: var(--ink); color: var(--text-on-dark); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(10,27,61,.22); border-radius: 6px; border: 2px solid var(--paper); }
::-webkit-scrollbar-thumb:hover { background: rgba(10,27,61,.38); }
::-webkit-scrollbar-track { background: transparent; }

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

a { color: var(--ink); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--azure); }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.28;
    color: var(--text);
    letter-spacing: .01em;
}

h1 { font-size: clamp(2.1rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.7rem); }
h3 { font-size: clamp(1.3rem, 2.4vw, 1.7rem); }
h4 { font-size: 1.2rem; }
h5 { font-size: 1.08rem; }
h6 { font-size: 1rem; }

p { color: var(--text-2); margin-bottom: 1rem; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; }
input, select, textarea { font-family: inherit; }
.hidden { display: none !important; }

:focus-visible { outline: 2px solid var(--azure); outline-offset: 2px; border-radius: 2px; }

/* ================= 布局容器 ================= */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}
.container-sm { max-width: 880px; }

.section { padding: var(--space-3xl) 0; position: relative; }
.section-sm { padding: var(--space-2xl) 0; }

.section-dark {
    background: var(--grad-ink);
    color: var(--text-on-dark);
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--text-on-dark); }
.section-dark p { color: var(--text-on-dark-2); }

.section-alt {
    background: var(--surface);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
}

/* ---- 区块头（编辑级标签） ---- */
.section-header {
    text-align: center;
    max-width: 780px;
    margin: 0 auto var(--space-2xl);
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .32em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 18px;
}
.section-label::before,
.section-label::after {
    content: '';
    width: 34px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold));
}
.section-label::after { background: linear-gradient(90deg, var(--gold), transparent); }
.section-dark .section-label { color: var(--gold-bright); }

.section-title {
    margin-bottom: 16px;
    font-weight: 900;
}
.section-title::after {
    content: '';
    display: block;
    width: 56px;
    height: 3px;
    margin: 20px auto 0;
    background: var(--grad-gold);
    border-radius: 2px;
}
.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-2);
    max-width: 640px;
    margin: 18px auto 0;
}
.section-dark .section-subtitle { color: var(--text-on-dark-2); }

/* ================= 按钮 ================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 28px;
    font-size: .95rem;
    font-weight: 600;
    letter-spacing: .04em;
    border-radius: var(--radius-full);
    border: 1px solid transparent;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast),
                background var(--transition-fast), color var(--transition-fast),
                border-color var(--transition-fast);
    white-space: nowrap;
}
.btn svg { flex-shrink: 0; transition: transform var(--transition-fast); }
.btn:hover svg { transform: translateX(3px); }

.btn-primary {
    background: var(--ink);
    color: #fff;
    box-shadow: 0 6px 18px -6px rgba(10, 27, 61, .5);
}
.btn-primary:hover {
    background: var(--ink-800);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 12px 28px -8px rgba(10, 27, 61, .55);
}

.btn-secondary {
    background: transparent;
    color: var(--ink);
    border-color: var(--hairline-strong);
}
.btn-secondary:hover {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
    transform: translateY(-2px);
}

.btn-outline-light {
    background: rgba(255, 255, 255, .04);
    color: var(--text-on-dark);
    border-color: rgba(255, 255, 255, .32);
    backdrop-filter: blur(6px);
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, .12);
    border-color: rgba(255, 255, 255, .6);
    color: #fff;
    transform: translateY(-2px);
}

.btn-gold {
    background: var(--grad-gold);
    color: #fff;
    box-shadow: 0 8px 22px -6px rgba(176, 141, 62, .55);
    position: relative;
    overflow: hidden;
}
.btn-gold::after {
    content: '';
    position: absolute;
    top: 0; left: -80%;
    width: 50%; height: 100%;
    background: linear-gradient(105deg, transparent, rgba(255,255,255,.35), transparent);
    transform: skewX(-20deg);
    transition: left .6s var(--ease-out);
}
.btn-gold:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 14px 32px -8px rgba(176, 141, 62, .6);
}
.btn-gold:hover::after { left: 130%; }

.btn-lg { padding: 16px 34px; font-size: 1.02rem; }
.btn-xl { padding: 19px 44px; font-size: 1.08rem; }
.btn-sm { padding: 8px 18px; font-size: .85rem; }

.btn-group { display: flex; gap: 14px; flex-wrap: wrap; }

/* ================= 导航栏 ================= */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    height: var(--nav-h);
    transition: background var(--transition-base), box-shadow var(--transition-base),
                border-color var(--transition-base), height var(--transition-base);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    height: 64px;
    background: rgba(5, 15, 40, .82);
    backdrop-filter: blur(18px) saturate(1.4);
    -webkit-backdrop-filter: blur(18px) saturate(1.4);
    border-bottom-color: var(--hairline-light);
    box-shadow: 0 10px 40px -12px rgba(5, 15, 40, .5);
}

.navbar-dark { background: transparent; }
.navbar-dark.scrolled { background: rgba(5, 15, 40, .82); }

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 1.12rem;
    font-weight: 900;
    color: var(--text);
    letter-spacing: .02em;
}
.navbar-dark .nav-logo { color: var(--text-on-dark); }

.nav-logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--grad-gold);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 900;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 6px 16px -4px rgba(176, 141, 62, .5);
}
.nav-logo-icon::after {
    content: '';
    position: absolute;
    top: 0; left: -80%;
    width: 60%; height: 100%;
    background: linear-gradient(105deg, transparent, rgba(255,255,255,.4), transparent);
    transform: skewX(-20deg);
    animation: shimmer 4.5s ease-in-out infinite;
}
@keyframes shimmer {
    0%, 55% { left: -80%; }
    85%, 100% { left: 130%; }
}

.nav-menu { display: flex; align-items: center; gap: 4px; }

.nav-link {
    position: relative;
    padding: 10px 16px;
    font-size: .94rem;
    font-weight: 500;
    letter-spacing: .03em;
    color: var(--text-2);
    transition: color var(--transition-fast);
}
.navbar-dark .nav-link { color: rgba(244, 241, 232, .82); }

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 16px; right: 16px;
    height: 2px;
    background: var(--grad-gold);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: center;
    transition: transform var(--transition-base);
}

.nav-link:hover, .nav-link.active { color: var(--ink); }
.navbar-dark .nav-link:hover, .navbar-dark .nav-link.active { color: #fff; }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }

.nav-cta { margin-left: 14px; }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    border-radius: 10px;
}
.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: transform var(--transition-base), opacity var(--transition-fast);
}
.navbar-dark .nav-toggle span { background: var(--text-on-dark); }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: min(320px, 84vw);
    background: var(--surface);
    z-index: 999;
    padding: calc(var(--nav-h) + 20px) 30px 30px;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    box-shadow: -20px 0 60px rgba(5, 15, 40, .18);
    overflow-y: auto;
}
.navbar-dark .mobile-nav { background: var(--surface); }
.mobile-nav.open { transform: translateX(0); }

.mobile-nav-menu { display: flex; flex-direction: column; gap: 2px; }

.mobile-nav-link {
    padding: 14px 16px;
    font-size: 1.02rem;
    font-weight: 500;
    color: var(--text-2);
    border-radius: 10px;
    border-bottom: 1px solid var(--hairline);
    transition: all var(--transition-fast);
}
.mobile-nav-link:last-of-type { border-bottom: none; }
.mobile-nav-link:hover, .mobile-nav-link.active {
    color: var(--ink);
    background: var(--paper);
    padding-left: 22px;
}

/* ================= Hero 首屏 ================= */
.hero {
    position: relative;
    min-height: 100vh;
    padding: calc(var(--nav-h) + var(--space-3xl)) 0 var(--space-3xl);
    background:
        radial-gradient(ellipse 60% 45% at 85% 8%, rgba(46, 109, 168, .28) 0%, transparent 60%),
        radial-gradient(ellipse 45% 40% at 8% 90%, rgba(176, 141, 62, .16) 0%, transparent 55%),
        var(--grad-ink);
    color: var(--text-on-dark);
    overflow: hidden;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 25%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 25%, transparent 75%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    mix-blend-mode: overlay;
}

.hero-orbs { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(110px); }
.hero-orb-1 {
    width: 480px; height: 480px;
    background: rgba(46, 109, 168, .35);
    top: -140px; right: -80px;
    animation: float 9s ease-in-out infinite;
}
.hero-orb-2 {
    width: 380px; height: 380px;
    background: rgba(176, 141, 62, .22);
    bottom: -100px; left: -60px;
    animation: float 11s 1.5s ease-in-out infinite;
}
.hero-orb-3 {
    width: 260px; height: 260px;
    background: rgba(26, 58, 117, .5);
    top: 42%; left: 46%;
    animation: float 13s 3s ease-in-out infinite;
}
@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(26px, -30px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    gap: var(--space-3xl);
    align-items: center;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 9px 20px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--hairline-light);
    border-radius: var(--radius-full);
    font-size: .84rem;
    letter-spacing: .08em;
    color: var(--text-on-dark-2);
    margin-bottom: 30px;
    backdrop-filter: blur(8px);
}
.hero-badge-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--gold-bright);
    box-shadow: 0 0 0 0 rgba(217, 184, 106, .6);
    animation: pulse 2.2s infinite;
    flex-shrink: 0;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(217, 184, 106, .55); }
    70% { box-shadow: 0 0 0 9px rgba(217, 184, 106, 0); }
    100% { box-shadow: 0 0 0 0 rgba(217, 184, 106, 0); }
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 900;
    font-size: clamp(2.2rem, 4.6vw, 3.7rem);
    line-height: 1.22;
    letter-spacing: .015em;
    color: #fff;
    margin-bottom: 26px;
}
.hero-title-divider {
    color: var(--gold-bright);
    margin: 0 .1em;
    font-weight: 400;
}

.hero-subtitle {
    font-size: 1.06rem;
    line-height: 2;
    color: var(--text-on-dark-2);
    margin-bottom: 26px;
    max-width: 560px;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 34px;
}
.hero-tag {
    padding: 6px 15px;
    font-size: .82rem;
    letter-spacing: .03em;
    color: rgba(244, 241, 232, .78);
    border: 1px solid var(--hairline-light);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}
.hero-tag:hover {
    border-color: var(--gold-bright);
    color: var(--gold-bright);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: 0;
    margin-top: 46px;
    padding-top: 30px;
    border-top: 1px solid var(--hairline-light);
}
.hero-stats > div {
    flex: 1;
    padding: 0 22px;
    border-left: 1px solid var(--hairline-light);
}
.hero-stats > div:first-child { padding-left: 0; border-left: none; }

.hero-stat-num {
    font-family: var(--font-display);
    font-size: clamp(1.7rem, 2.6vw, 2.4rem);
    font-weight: 900;
    color: #fff;
    line-height: 1.1;
    letter-spacing: .01em;
}
.hero-stat-num .accent { color: var(--gold-bright); }
.hero-stat-label {
    font-size: .82rem;
    letter-spacing: .06em;
    color: var(--text-on-dark-2);
    margin-top: 6px;
}

/* ---- Hero 右侧视觉 ---- */
.hero-visual { position: relative; }

.hero-visual-card {
    position: relative;
    border-radius: var(--radius-xl);
    animation: cardFloat 7s ease-in-out infinite;
}
@keyframes cardFloat {
    0%, 100% { transform: translateY(0) rotate(-.4deg); }
    50% { transform: translateY(-14px) rotate(.4deg); }
}

.code-window {
    background: rgba(8, 20, 46, .88);
    border: 1px solid var(--hairline-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl), inset 0 1px 0 rgba(255,255,255,.08);
    backdrop-filter: blur(12px);
}
.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 13px 18px;
    background: rgba(255, 255, 255, .045);
    border-bottom: 1px solid var(--hairline-light);
}
.code-dot { width: 11px; height: 11px; border-radius: 50%; flex-shrink: 0; }
.code-dot-red { background: #E0655A; }
.code-dot-yellow { background: #D9A93F; }
.code-dot-green { background: #4CAF6D; }
.code-tab {
    margin-left: 10px;
    padding: 3px 14px;
    font-family: var(--font-mono);
    font-size: .74rem;
    letter-spacing: .04em;
    color: rgba(244, 241, 232, .6);
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--hairline-light);
    border-radius: 6px;
}
.code-body {
    padding: 22px 24px;
    font-family: var(--font-mono);
    font-size: .84rem;
    line-height: 2.05;
    color: rgba(244, 241, 232, .82);
}
.code-body p { margin: 0; color: inherit; white-space: pre; }
.code-kw { color: #8FB8E8; }
.code-str { color: #D9B86A; }
.code-fn { color: #7ED0A8; }
.code-var { color: #E8A0BF; }
.code-keyword { color: #8FB8E8; }
.code-string { color: #D9B86A; }
.code-function { color: #7ED0A8; }
.code-comment { color: #6B7A94; }
.code-number { color: #E8C078; }
.code-variable { color: #E8A0BF; }

.hero-badge-float {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: rgba(247, 245, 239, .96);
    color: var(--ink);
    font-size: .82rem;
    font-weight: 600;
    letter-spacing: .03em;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(8px);
}
.hero-badge-float svg { color: var(--gold); flex-shrink: 0; }
.hero-bf-1 { top: -18px; right: 8%; animation: float 6s .5s ease-in-out infinite; }
.hero-bf-2 { bottom: 12%; left: -34px; animation: float 7.5s 1.2s ease-in-out infinite; }
.hero-bf-3 { bottom: -16px; right: 14%; animation: float 8.5s 2s ease-in-out infinite; }

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 2;
}
.scroll-indicator-text {
    font-family: var(--font-mono);
    font-size: .68rem;
    letter-spacing: .4em;
    color: var(--text-on-dark-2);
}
.scroll-indicator-line {
    width: 1px;
    height: 46px;
    background: linear-gradient(180deg, var(--gold-bright), transparent);
    animation: bounce 2.2s infinite;
}
@keyframes bounce {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(.55); opacity: .5; }
}

/* ================= 通用卡片 ================= */
.card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 30px 26px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base),
                border-color var(--transition-base);
}
.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--grad-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}
.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--hairline-strong);
}
.card:hover::before { transform: scaleX(1); }

/* ---- 服务卡 ---- */
.service-card { padding: 34px 28px; }

.service-icon {
    width: 58px;
    height: 58px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
    position: relative;
    color: #fff;
    box-shadow: 0 10px 24px -8px rgba(10, 27, 61, .4);
    transition: transform var(--transition-base), border-radius var(--transition-base);
}
.service-card:hover .service-icon {
    transform: translateY(-4px) rotate(-4deg) scale(1.05);
    border-radius: 20px;
}
.service-icon svg { width: 26px; height: 26px; position: relative; z-index: 1; }
.service-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: var(--grad-card-sheen);
}

.service-title {
    font-size: 1.22rem;
    margin-bottom: 10px;
    transition: color var(--transition-fast);
}
.service-card:hover .service-title { color: var(--ink-700); }

.service-desc {
    font-size: .92rem;
    line-height: 1.8;
    color: var(--text-2);
    margin-bottom: 18px;
}

.service-features { display: flex; flex-wrap: wrap; gap: 8px; }
.service-feature-tag {
    padding: 4px 12px;
    font-size: .76rem;
    letter-spacing: .03em;
    color: var(--text-2);
    background: var(--paper);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}
.service-card:hover .service-feature-tag {
    background: rgba(176, 141, 62, .08);
    border-color: rgba(176, 141, 62, .35);
    color: var(--gold);
}

/* ================= 网格 ================= */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 26px; }

/* ================= 优势（大编号编辑风） ================= */
.advantage-item {
    display: flex;
    gap: 24px;
    padding: 30px 28px;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}
.advantage-item:hover {
    border-color: var(--hairline-strong);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.advantage-num {
    font-family: var(--font-display);
    font-size: 2.9rem;
    font-weight: 900;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1.4px var(--gold);
    flex-shrink: 0;
    transition: color var(--transition-base);
    user-select: none;
}
.advantage-item:hover .advantage-num { color: var(--gold); }

.advantage-content h4 { margin-bottom: 8px; font-size: 1.14rem; }
.advantage-content p { font-size: .92rem; line-height: 1.8; margin: 0; }

/* ================= 首页流程时间线 ================= */
.process-timeline {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    position: relative;
    padding-top: 10px;
}
.process-timeline::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 6%; right: 6%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--hairline-strong) 12%, var(--hairline-strong) 88%, transparent);
}

.process-step { text-align: center; position: relative; padding: 0 6px; }

.process-step-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--hairline-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    color: var(--ink);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}
.process-step:hover .process-step-icon {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}
.process-step-icon svg { width: 24px; height: 24px; }

.step-number {
    position: absolute;
    top: -8px;
    right: -10px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--grad-gold);
    color: #fff;
    font-size: .72rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px -2px rgba(176, 141, 62, .5);
}

.process-step h4 { font-size: 1.06rem; margin-bottom: 8px; }
.process-step p { font-size: .84rem; line-height: 1.75; margin: 0; }

/* ================= 筛选条 ================= */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    padding: 6px 0;
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    font-size: .9rem;
    font-weight: 500;
    letter-spacing: .03em;
    color: var(--text-2);
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}
.filter-chip:hover {
    border-color: var(--ink);
    color: var(--ink);
    transform: translateY(-2px);
}
.filter-chip.active {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
    box-shadow: 0 8px 20px -6px rgba(10, 27, 61, .4);
}
.chip-count {
    font-family: var(--font-mono);
    font-size: .72rem;
    padding: 1px 8px;
    border-radius: var(--radius-full);
    background: var(--paper);
    color: var(--text-3);
    border: 1px solid var(--hairline);
}
.filter-chip.active .chip-count {
    background: rgba(255, 255, 255, .14);
    border-color: transparent;
    color: #fff;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    font-size: .9rem;
    font-weight: 500;
    color: var(--text-2);
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn.active { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ================= 案例卡片 ================= */
.case-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base),
                border-color var(--transition-base);
    display: flex;
    flex-direction: column;
}
.case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--hairline-strong);
}

.case-image {
    position: relative;
    aspect-ratio: 16 / 9.5;
    overflow: hidden;
}
.case-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-card-sheen);
    z-index: 1;
}
.case-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
    background-size: 34px 34px;
    mask-image: radial-gradient(ellipse at 70% 30%, black, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 70% 30%, black, transparent 75%);
    z-index: 1;
}

.case-image-content {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    align-items: flex-end;
    padding: 20px 22px;
    background: linear-gradient(180deg, transparent 40%, rgba(5, 15, 40, .55) 100%);
}
.case-industry-icon {
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 8px;
    filter: drop-shadow(0 4px 10px rgba(0,0,0,.3));
}
.case-image-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: .02em;
}

.case-tag, .case-tag-type {
    position: absolute;
    top: 14px;
    z-index: 3;
    padding: 5px 13px;
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .05em;
    border-radius: var(--radius-full);
    backdrop-filter: blur(8px);
}
.case-tag {
    left: 14px;
    background: rgba(5, 15, 40, .5);
    color: #fff;
    border: 1px solid rgba(255,255,255,.22);
}
.case-tag-type {
    right: 14px;
    background: rgba(217, 184, 106, .92);
    color: var(--ink-deep);
}

.case-body {
    padding: 22px 24px 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}
.case-title {
    font-size: 1.1rem;
    margin-bottom: 6px;
    transition: color var(--transition-fast);
}
.case-card:hover .case-title { color: var(--ink-700); }
.case-industry {
    font-size: .78rem;
    letter-spacing: .06em;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 10px;
}
.case-desc {
    font-size: .88rem;
    line-height: 1.8;
    color: var(--text-2);
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-info-row {
    display: flex;
    gap: 18px;
    padding: 10px 0;
    margin-bottom: 12px;
    border-top: 1px dashed var(--hairline);
    border-bottom: 1px dashed var(--hairline);
    font-size: .82rem;
    color: var(--text);
}
.case-info-row span { color: var(--text-3); }

.case-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 16px;
}
.case-highlight {
    padding: 3px 11px;
    font-size: .74rem;
    color: var(--text-2);
    background: var(--paper);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-full);
}

.case-footer {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--hairline);
}
.case-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .88rem;
    font-weight: 600;
    letter-spacing: .03em;
    color: var(--ink);
    position: relative;
}
.case-link::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 100%;
    height: 1.5px;
    background: var(--grad-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}
.case-link:hover { color: var(--gold); }
.case-link:hover::after { transform: scaleX(1); }
.case-link svg { transition: transform var(--transition-fast); }
.case-link:hover svg { transform: translateX(4px); }

/* ================= 资讯卡片（首页） ================= */
.news-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base),
                border-color var(--transition-base);
    display: flex;
    flex-direction: column;
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--hairline-strong);
}

.news-cover {
    position: relative;
    aspect-ratio: 16 / 8.5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.news-cover::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-card-sheen);
}
.news-cover-icon {
    font-size: 3rem;
    line-height: 1;
    filter: drop-shadow(0 6px 16px rgba(0,0,0,.28));
    transition: transform var(--transition-base);
}
.news-card:hover .news-cover-icon { transform: scale(1.12) rotate(-4deg); }

.news-cat {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    padding: 5px 13px;
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .05em;
    color: #fff;
    background: rgba(5, 15, 40, .5);
    border: 1px solid rgba(255,255,255,.22);
    border-radius: var(--radius-full);
    backdrop-filter: blur(8px);
}

.news-body {
    padding: 22px 24px 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}
.news-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: .78rem;
    color: var(--text-3);
    margin-bottom: 10px;
    letter-spacing: .02em;
}
.news-meta-sep { opacity: .5; }

.news-title {
    font-size: 1.08rem;
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition-fast);
}
.news-card:hover .news-title { color: var(--ink-700); }

.news-summary, .news-excerpt {
    font-size: .87rem;
    line-height: 1.8;
    color: var(--text-2);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-footer { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--hairline); }
.news-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: .86rem;
    font-weight: 600;
    color: var(--ink);
}
.news-more:hover { color: var(--gold); }
.news-more svg { transition: transform var(--transition-fast); }
.news-more:hover svg { transform: translateX(4px); }
.news-views { font-size: .8rem; color: var(--text-3); }

/* ================= 资讯列表（news.php） ================= */
.news-list { display: flex; flex-direction: column; gap: 24px; }

.news-list-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}
.news-list-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--hairline-strong);
}

.news-list-cover {
    position: relative;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.news-list-cover .news-cover-icon { transition: transform var(--transition-base); }
.news-list-item:hover .news-list-cover .news-cover-icon { transform: scale(1.15) rotate(-4deg); }

.news-list-body { padding: 28px 32px; display: flex; flex-direction: column; }
.news-list-title {
    font-size: 1.3rem;
    line-height: 1.5;
    margin-bottom: 10px;
    transition: color var(--transition-fast);
}
.news-list-item:hover .news-list-title { color: var(--ink-700); }
.news-list-summary {
    font-size: .92rem;
    line-height: 1.85;
    color: var(--text-2);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-list-footer { margin-top: auto; }

/* ================= 分页 ================= */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: var(--space-2xl);
}
.pagination-btn {
    min-width: 42px;
    height: 42px;
    padding: 0 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
    font-weight: 500;
    color: var(--text-2);
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}
.pagination-btn:hover { border-color: var(--ink); color: var(--ink); }
.pagination-btn.active {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
}
.pagination-btn:disabled { opacity: .4; cursor: not-allowed; }

/* ================= CTA 区块 ================= */
.section-cta {
    background: var(--paper);
    overflow: hidden;
    position: relative;
}

.cta-bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
}
.cta-orb-1 {
    width: 420px; height: 420px;
    background: rgba(46, 109, 168, .14);
    top: -140px; left: -80px;
}
.cta-orb-2 {
    width: 360px; height: 360px;
    background: rgba(176, 141, 62, .14);
    bottom: -120px; right: -60px;
}

.cta-card {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.4fr auto;
    align-items: center;
    gap: var(--space-2xl);
    background: var(--grad-ink);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-2xl);
    padding: 56px 60px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}
.cta-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(ellipse at 20% 20%, black, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at 20% 20%, black, transparent 70%);
    pointer-events: none;
}
.cta-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--grad-gold);
}

.cta-left h2 {
    color: #fff;
    font-size: clamp(1.5rem, 2.6vw, 2.1rem);
    margin-bottom: 14px;
}
.cta-left p {
    color: var(--text-on-dark-2);
    font-size: .98rem;
    line-height: 1.9;
    margin-bottom: 0;
    max-width: 560px;
}

.cta-tel {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 26px;
}
.cta-tel a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 22px;
    border: 1px solid var(--hairline-light);
    border-radius: var(--radius-full);
    color: var(--text-on-dark);
    font-size: .95rem;
    font-weight: 600;
    letter-spacing: .03em;
    transition: all var(--transition-fast);
    background: rgba(255,255,255,.04);
}
.cta-tel a:hover {
    border-color: var(--gold-bright);
    color: var(--gold-bright);
    transform: translateY(-2px);
}
.cta-tel svg { color: var(--gold-bright); }
.cta-tel small { font-weight: 400; opacity: .7; }

.cta-right { position: relative; z-index: 1; }

/* ---- 旧版 CTA（兼容 index.html 等静态页） ---- */
.cta-section {
    position: relative;
    background: var(--grad-ink);
    color: var(--text-on-dark);
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 50% 60% at 80% 20%, rgba(46,109,168,.3), transparent 60%);
}
.cta-inner { position: relative; z-index: 1; text-align: center; max-width: 720px; margin: 0 auto; }
.cta-title { color: #fff; margin-bottom: 16px; }
.cta-subtitle { color: var(--text-on-dark-2); margin-bottom: 30px; }
.cta-contact-info { display: flex; justify-content: center; gap: 30px; flex-wrap: wrap; }
.cta-contact-item { display: flex; align-items: center; gap: 12px; }
.cta-contact-icon {
    width: 46px; height: 46px;
    border-radius: 50%;
    background: rgba(255,255,255,.08);
    border: 1px solid var(--hairline-light);
    display: flex; align-items: center; justify-content: center;
    color: var(--gold-bright);
}
.cta-contact-icon svg { width: 20px; height: 20px; }
.cta-contact-label { font-size: .78rem; color: var(--text-on-dark-2); text-align: left; }
.cta-contact-value { font-size: 1.05rem; font-weight: 700; color: #fff; text-align: left; }

/* ================= 页头（内页） ================= */
.page-header {
    position: relative;
    padding: calc(var(--nav-h) + var(--space-3xl)) 0 var(--space-3xl);
    background:
        radial-gradient(ellipse 55% 60% at 85% 20%, rgba(46, 109, 168, .26) 0%, transparent 55%),
        radial-gradient(ellipse 40% 50% at 10% 90%, rgba(176, 141, 62, .14) 0%, transparent 50%),
        var(--grad-ink);
    color: #fff;
    overflow: hidden;
}
.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 72%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 72%);
    pointer-events: none;
}
.page-header::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--gold) 30%, var(--gold) 70%, transparent);
    opacity: .7;
}

.page-header-inner { position: relative; z-index: 1; text-align: center; }

.breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 20px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--hairline-light);
    border-radius: var(--radius-full);
    font-size: .84rem;
    color: var(--text-on-dark-2);
    margin-bottom: 26px;
    backdrop-filter: blur(10px);
}
.breadcrumb a { color: var(--text-on-dark-2); transition: color var(--transition-fast); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb-sep { opacity: .45; }

.badge-outline {
    display: inline-block;
    padding: 7px 20px;
    font-family: var(--font-mono);
    font-size: .76rem;
    font-weight: 600;
    letter-spacing: .3em;
    text-transform: uppercase;
    color: var(--gold-bright);
    border: 1px solid rgba(217, 184, 106, .45);
    border-radius: var(--radius-full);
    background: rgba(176, 141, 62, .08);
}

.page-title {
    font-size: clamp(2rem, 4.5vw, 3.1rem);
    font-weight: 900;
    margin-bottom: 18px;
    color: #fff;
}
.page-subtitle {
    font-size: 1.04rem;
    line-height: 1.9;
    color: var(--text-on-dark-2);
    max-width: 700px;
    margin: 0 auto;
}

/* ================= 服务详情块 ================= */
.service-detail-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    padding: var(--space-2xl) 0;
}
.service-detail-block.reverse > .service-detail-content { order: 2; }
.service-detail-block.reverse > .service-detail-visual { order: 1; }
.service-detail-block:nth-child(even) { direction: rtl; }
.service-detail-block:nth-child(even) > * { direction: ltr; }
.service-detail-block.reverse { direction: ltr; }

.service-detail-content h3 { font-size: 1.75rem; margin-bottom: 14px; }

.service-detail-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: .74rem;
    font-weight: 600;
    letter-spacing: .24em;
    color: var(--gold);
    margin-bottom: 16px;
    padding: 5px 14px;
    border: 1px solid rgba(176, 141, 62, .4);
    background: rgba(176, 141, 62, .07);
    border-radius: var(--radius-full);
}

.service-detail-desc {
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: 26px;
}

.service-detail-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 28px;
}
.service-detail-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 13px 15px;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}
.service-detail-item:hover {
    border-color: rgba(176, 141, 62, .45);
    transform: translateX(4px);
}
.service-detail-item-icon {
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    background: var(--grad-ink);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-bright);
    font-family: var(--font-mono);
    font-size: .74rem;
    font-weight: 700;
}
.service-detail-item-text { font-size: .88rem; line-height: 1.65; color: var(--text-2); align-self: center; }

.service-detail-cta { display: flex; gap: 12px; }

.service-detail-visual { position: relative; }
.service-visual-card {
    border-radius: var(--radius-xl);
    padding: 46px 40px;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    text-align: center;
}
.service-visual-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 15%, rgba(255,255,255,.14) 0%, transparent 42%),
        var(--grad-card-sheen);
    pointer-events: none;
}
.service-visual-card::after {
    content: '';
    position: absolute;
    inset: 12px;
    border: 1px solid rgba(255,255,255,.18);
    border-radius: calc(var(--radius-xl) - 10px);
    pointer-events: none;
}

.svc-visual-icon {
    width: 74px;
    height: 74px;
    margin: 0 auto 20px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255,255,255,.22);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(6px);
    position: relative;
    z-index: 1;
}
.svc-visual-icon svg { width: 36px; height: 36px; color: #fff; }
.svc-visual-title {
    font-family: var(--font-display);
    font-size: 1.45rem;
    font-weight: 700;
    margin-bottom: 18px;
    position: relative;
    z-index: 1;
}
.svc-visual-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 9px;
    position: relative;
    z-index: 1;
}
.svc-visual-tags span {
    padding: 5px 14px;
    font-size: .78rem;
    letter-spacing: .03em;
    color: rgba(255,255,255,.88);
    border: 1px solid rgba(255,255,255,.26);
    border-radius: var(--radius-full);
    background: rgba(255,255,255,.07);
}

/* ---- 旧版 service-visual 兼容 ---- */
.service-visual-icon { width: 64px; height: 64px; margin: 0 auto 16px; display: flex; align-items: center; justify-content: center; }
.service-visual-icon svg { width: 32px; height: 32px; }
.service-visual-title { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; position: relative; z-index: 1; }
.service-visual-desc { position: relative; z-index: 1; color: rgba(255,255,255,.8); font-size: .92rem; }
.service-visual-tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 16px; position: relative; z-index: 1; }
.service-visual-tag { padding: 4px 13px; font-size: .76rem; color: rgba(255,255,255,.85); border: 1px solid rgba(255,255,255,.25); border-radius: var(--radius-full); }

/* ================= 关于我们 ================= */
.about-split {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-visual { position: relative; }
.about-visual-card {
    position: relative;
    background: var(--grad-ink);
    border-radius: var(--radius-xl);
    padding: 54px 40px 40px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    min-height: 460px;
    display: flex;
    flex-direction: column;
}
.about-visual-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(ellipse at 30% 20%, black, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at 30% 20%, black, transparent 75%);
}

.about-logo-mark {
    font-family: var(--font-display);
    font-size: clamp(5rem, 9vw, 7.5rem);
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(160deg, #E9CE8A 0%, var(--gold-bright) 45%, var(--gold) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    z-index: 1;
    user-select: none;
}

.about-mark-line {
    position: absolute;
    border: 1px solid rgba(217, 184, 106, .25);
    border-radius: 50%;
    pointer-events: none;
}
.about-mark-line-1 { width: 260px; height: 260px; top: -70px; right: -70px; }
.about-mark-line-2 { width: 380px; height: 380px; top: -130px; right: -130px; border-color: rgba(217,184,106,.12); }

.about-stat-block {
    margin-top: auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    position: relative;
    z-index: 1;
}
.about-stat-card {
    padding: 18px 14px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--hairline-light);
    border-radius: var(--radius-md);
    text-align: center;
    backdrop-filter: blur(8px);
}
.about-stat-num {
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 900;
    color: #fff;
    line-height: 1.1;
}
.about-stat-num span { color: var(--gold-bright); }
.about-stat-label { font-size: .74rem; letter-spacing: .05em; color: var(--text-on-dark-2); margin-top: 5px; }

.about-content .section-subtitle { margin-left: 0; }
.about-intro p { margin-bottom: 14px; line-height: 1.95; }
.about-intro strong { color: var(--ink); }

.about-info-block {
    margin-top: 24px;
    border-top: 1px solid var(--hairline);
}
.about-info-block > div {
    display: flex;
    gap: 10px;
    padding: 12px 2px;
    border-bottom: 1px dashed var(--hairline);
    font-size: .94rem;
}
.about-info-block span { color: var(--text-3); flex-shrink: 0; }
.about-info-block a { color: var(--ink); font-weight: 600; }
.about-info-block a:hover { color: var(--gold); }

/* ---- 价值观卡 ---- */
.value-card { text-align: center; padding: 34px 26px; }
.value-icon {
    width: 58px;
    height: 58px;
    margin: 0 auto 20px;
    border-radius: 16px;
    background: var(--paper);
    border: 1px solid var(--hairline);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ink);
    transition: all var(--transition-base);
}
.value-card:hover .value-icon {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--gold-bright);
    transform: translateY(-4px) rotate(-4deg);
}
.value-icon svg { width: 26px; height: 26px; }
.value-card h4 { font-size: 1.12rem; margin-bottom: 10px; }
.value-card p { font-size: .9rem; line-height: 1.8; margin: 0; }

/* ---- 团队卡 ---- */
.team-card {
    text-align: center;
    padding: 36px 24px;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}
.team-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--hairline-strong);
}
.team-avatar {
    width: 84px;
    height: 84px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    color: #fff;
    box-shadow: 0 12px 28px -8px rgba(10, 27, 61, .35);
    position: relative;
}
.team-avatar::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px solid var(--hairline-strong);
}
.team-card h4 { font-size: 1.08rem; margin-bottom: 10px; }
.team-card p { font-size: .87rem; line-height: 1.8; margin: 0; }

/* ---- 企业文化 ---- */
.culture-card {
    margin-top: var(--space-2xl);
    padding: 48px 52px;
    background: var(--grad-ink);
    border-radius: var(--radius-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}
.culture-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 50% 70% at 50% 0%, rgba(217,184,106,.14), transparent 60%);
}
.culture-card::after {
    content: '';
    position: absolute;
    top: 0; left: 20%; right: 20%;
    height: 2px;
    background: var(--grad-gold);
}
.culture-tag {
    display: inline-block;
    padding: 6px 18px;
    font-family: var(--font-mono);
    font-size: .74rem;
    letter-spacing: .28em;
    color: var(--gold-bright);
    border: 1px solid rgba(217, 184, 106, .45);
    border-radius: var(--radius-full);
    margin-bottom: 22px;
    position: relative;
    z-index: 1;
}
.culture-card h3 {
    color: #fff;
    font-size: clamp(1.3rem, 2.6vw, 1.8rem);
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}
.culture-card p {
    color: var(--text-on-dark-2);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.95;
    position: relative;
    z-index: 1;
}

/* ================= 联系页面 ================= */
.contact-info-card {
    text-align: center;
    padding: 34px 24px;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}
.contact-info-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--grad-gold);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}
.contact-info-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--hairline-strong);
}
.contact-info-card:hover::before { transform: scaleX(1); }

.contact-info-icon {
    width: 58px;
    height: 58px;
    margin: 0 auto 18px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 10px 24px -8px rgba(10, 27, 61, .35);
}
.contact-info-icon svg { width: 26px; height: 26px; }
.contact-info-card h4 { font-size: 1.05rem; margin-bottom: 10px; }
.contact-info-value { font-size: 1.06rem; font-weight: 700; color: var(--ink); margin-bottom: 8px; word-break: break-all; }
.contact-info-value a { color: var(--ink); }
.contact-info-value a:hover { color: var(--gold); }
.contact-info-card p { font-size: .83rem; line-height: 1.75; margin: 0; }

.contact-wrap {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 28px;
    align-items: start;
}

.contact-form-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-xl);
    padding: 42px 44px;
    box-shadow: var(--shadow-md);
}
.contact-form-card .section-title { font-size: 1.6rem; }
.contact-form-card .section-title::after { margin-left: 0; }
.contact-form-card .section-label::before { display: none; }

.contact-form .form-row-2,
.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.form-field { margin-bottom: 18px; }
.form-field label {
    display: block;
    font-size: .88rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    letter-spacing: .02em;
}
.form-field .req, .form-label .required { color: #C0392B; margin-left: 3px; }
.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 13px 16px;
    font-size: .94rem;
    color: var(--text);
    background: var(--paper);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast),
                background var(--transition-fast);
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    background: var(--surface);
    border-color: var(--ink);
    box-shadow: 0 0 0 3.5px rgba(10, 27, 61, .1);
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--text-3); }
.form-field textarea { min-height: 140px; resize: vertical; line-height: 1.8; }
.form-field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%234A586F' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; }

.contact-submit-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 26px;
    padding-top: 24px;
    border-top: 1px solid var(--hairline);
}
.contact-note {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: .82rem;
    color: var(--text-3);
    line-height: 1.6;
}
.contact-note svg { color: var(--gold); flex-shrink: 0; }

.contact-side { display: flex; flex-direction: column; gap: 22px; }
.contact-side-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 28px 28px;
    box-shadow: var(--shadow-sm);
}
.contact-side-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--hairline);
}
.contact-side-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--hairline);
    font-size: .9rem;
}
.contact-side-list li:last-child { border-bottom: none; }
.contact-side-list span { color: var(--text-3); flex-shrink: 0; }
.contact-side-list strong { color: var(--text); font-weight: 600; text-align: right; }
.contact-side-list a { color: var(--ink); }
.contact-side-list a:hover { color: var(--gold); }

.vip-tel {
    display: flex;
    align-items: center;
    gap: 14px;
    margin: 14px 0 16px;
    color: var(--gold-bright);
}
.vip-tel a {
    font-family: var(--font-display);
    font-size: 1.65rem;
    font-weight: 900;
    letter-spacing: .02em;
    color: #fff;
}
.vip-tel a:hover { color: var(--gold-bright); }

/* ---- 旧版联系页兼容 ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 28px; align-items: start; }
.contact-info-inner { position: relative; z-index: 1; }
.contact-info-list { display: flex; flex-direction: column; gap: 14px; }
.contact-info-item { display: flex; gap: 14px; align-items: flex-start; }
.contact-info-label { font-size: .78rem; color: var(--text-3); }
.contact-qr { margin-top: 24px; display: flex; gap: 16px; align-items: center; }
.contact-qr-box {
    width: 110px; height: 110px;
    background: var(--paper);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
}
.contact-qr-box svg { width: 80px; height: 80px; }
.contact-qr-text h5 { margin-bottom: 6px; }
.contact-qr-text p { font-size: .84rem; margin: 0; }
.contact-form-lead { margin-bottom: 20px; }
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: .88rem; font-weight: 600; color: var(--text); margin-bottom: 8px; }
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 13px 16px;
    font-size: .94rem;
    color: var(--text);
    background: var(--paper);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-fast);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    background: var(--surface);
    border-color: var(--ink);
    box-shadow: 0 0 0 3.5px rgba(10, 27, 61, .1);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-3); }
.form-textarea { min-height: 140px; resize: vertical; line-height: 1.8; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-submit { width: 100%; }
.form-tips { font-size: .82rem; color: var(--text-3); margin-top: 14px; text-align: center; }

/* ================= 开发流程页 ================= */
/* ---- 总览大图 ---- */
.process-overview {
    display: flex;
    align-items: stretch;
    gap: 0;
    margin-top: 10px;
}
.po-node {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 30px 20px 24px;
    text-align: center;
    position: relative;
    transition: all var(--transition-base);
}
.po-node::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--step-color, var(--ink));
    border-radius: 3px 3px 0 0;
}
.po-node:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--hairline-strong);
}
.po-no {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 900;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1.2px var(--step-color, var(--ink));
    margin-bottom: 14px;
}
.po-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 14px;
    border-radius: 14px;
    background: var(--step-color, var(--ink));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 18px -6px rgba(10, 27, 61, .35);
}
.po-icon svg { width: 24px; height: 24px; }
.po-name { font-family: var(--font-display); font-size: 1.08rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.po-desc { font-size: .8rem; line-height: 1.7; color: var(--text-2); margin-bottom: 12px; }
.po-output {
    font-size: .74rem;
    line-height: 1.65;
    color: var(--text-3);
    padding-top: 10px;
    border-top: 1px dashed var(--hairline);
}
.po-output strong { color: var(--gold); font-weight: 600; }

.po-arrow {
    align-self: center;
    flex-shrink: 0;
    width: 34px;
    color: var(--text-3);
    margin: 0 6px;
}
.po-arrow svg { width: 100%; height: auto; display: block; }

/* ---- 详细步骤 ---- */
.process-detail-row {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 0;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: 30px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}
.process-detail-row:hover { box-shadow: var(--shadow-md); }
.process-detail-row.reverse { grid-template-columns: 1fr 360px; }
.process-detail-row.reverse .process-detail-left { order: 2; }
.process-detail-row.reverse .process-detail-right { order: 1; }

.process-detail-left {
    padding: 44px 36px;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
.process-detail-left::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-card-sheen);
    pointer-events: none;
}
.process-detail-left::after {
    content: '';
    position: absolute;
    inset: 14px;
    border: 1px solid rgba(255,255,255,.16);
    border-radius: var(--radius-md);
    pointer-events: none;
}
.pdl-no {
    font-family: var(--font-display);
    font-size: 3.4rem;
    font-weight: 900;
    line-height: 1;
    opacity: .34;
    margin-bottom: 14px;
    position: relative;
    z-index: 1;
}
.pdl-title {
    font-family: var(--font-display);
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1.4;
    position: relative;
    z-index: 1;
}
.pdl-title small {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: .72rem;
    font-weight: 500;
    letter-spacing: .18em;
    opacity: .75;
    margin-top: 6px;
    text-transform: uppercase;
}
.pdl-time {
    margin-top: 18px;
    padding: 8px 16px;
    display: inline-block;
    align-self: flex-start;
    font-size: .8rem;
    letter-spacing: .03em;
    background: rgba(255, 255, 255, .12);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: var(--radius-full);
    position: relative;
    z-index: 1;
}

.process-detail-right { padding: 40px 44px; }
.process-detail-right h3 { font-size: 1.28rem; margin-bottom: 12px; }
.process-detail-right > p { font-size: .93rem; line-height: 1.9; margin-bottom: 20px; }

.pdr-list { display: flex; flex-direction: column; gap: 0; margin-bottom: 22px; }
.pdr-list li {
    padding: 11px 0 11px 24px;
    font-size: .89rem;
    line-height: 1.8;
    color: var(--text-2);
    border-bottom: 1px dashed var(--hairline);
    position: relative;
}
.pdr-list li:last-child { border-bottom: none; }
.pdr-list li::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 20px;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: var(--grad-gold);
    transform: rotate(45deg);
}
.pdr-list li span { color: var(--ink); font-weight: 600; }

.pdr-milestones {
    background: var(--paper);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--gold);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.pdr-milestone { font-size: .86rem; line-height: 1.7; color: var(--text-2); display: flex; gap: 8px; align-items: baseline; }
.pdr-milestone span { flex-shrink: 0; }

/* ---- 里程碑线 ---- */
.milestone-line {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
    padding-top: 34px;
}
.milestone-line::before {
    content: '';
    position: absolute;
    top: 9px;
    left: 12%; right: 12%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--hairline-strong) 10%, var(--hairline-strong) 90%, transparent);
}
.mile-node { text-align: center; padding: 0 14px; position: relative; }
.mile-dot {
    position: absolute;
    top: -34px;
    left: 50%;
    transform: translateX(-50%);
    width: 19px;
    height: 19px;
    border-radius: 50%;
    background: var(--ink);
    border: 4px solid var(--paper);
    box-shadow: 0 0 0 1.5px var(--ink);
}
.mile-dot-blue { background: var(--azure); box-shadow: 0 0 0 1.5px var(--azure); }
.mile-dot-green { background: #2E7D4F; box-shadow: 0 0 0 1.5px #2E7D4F; }
.mile-dot-gold { background: var(--gold); box-shadow: 0 0 0 1.5px var(--gold); }
.mile-label { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.mile-pct {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 900;
    color: var(--gold);
    line-height: 1.1;
    margin-bottom: 8px;
}
.mile-desc { font-size: .82rem; line-height: 1.7; color: var(--text-2); }

/* ---- 质量保障卡 ---- */
.qa-card { text-align: left; padding: 30px 28px; }
.qa-icon {
    font-size: 2.1rem;
    line-height: 1;
    margin-bottom: 16px;
    display: inline-block;
    filter: saturate(.85);
}
.qa-card h4 { font-size: 1.1rem; margin-bottom: 9px; }
.qa-card p { font-size: .88rem; line-height: 1.8; margin: 0; }

/* ---- FAQ ---- */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.faq-item[open] {
    border-color: var(--hairline-strong);
    box-shadow: var(--shadow-sm);
}
.faq-item summary {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 19px 24px;
    font-family: var(--font-display);
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--text);
    cursor: pointer;
    list-style: none;
    transition: color var(--transition-fast);
    user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--ink-700); }
.faq-q { color: var(--gold); font-family: var(--font-mono); font-weight: 700; margin-right: 4px; }
.faq-arrow {
    width: 18px;
    height: 18px;
    margin-left: auto;
    flex-shrink: 0;
    color: var(--text-3);
    transition: transform var(--transition-base);
}
.faq-item[open] .faq-arrow { transform: rotate(180deg); color: var(--gold); }
.faq-a {
    padding: 0 24px 22px 24px;
    font-size: .92rem;
    line-height: 1.9;
    color: var(--text-2);
    border-top: 1px dashed var(--hairline);
    padding-top: 16px;
    margin: 0 0;
    margin-left: 24px;
    margin-right: 24px;
    padding-left: 0;
    padding-right: 0;
}

/* ================= 模态框 ================= */
.modal-mask {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 5vh 20px;
    background: rgba(5, 15, 40, .62);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow-y: auto;
}
.modal-mask.hidden { display: none; }

.modal-box {
    width: 100%;
    max-width: 640px;
    background: var(--surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: modalUp .35s var(--ease-out);
    border-top: 3px solid var(--gold);
}
.modal-lg { max-width: 900px; }
@keyframes modalUp {
    from { opacity: 0; transform: translateY(30px) scale(.97); }
    to { opacity: 1; transform: none; }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 22px 30px;
    border-bottom: 1px solid var(--hairline);
}
.modal-header h3 { font-size: 1.25rem; }
.modal-close {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-3);
    border: 1px solid var(--hairline);
    transition: all var(--transition-fast);
}
.modal-close:hover { background: var(--ink); border-color: var(--ink); color: #fff; transform: rotate(90deg); }
.modal-close svg { width: 18px; height: 18px; }
.modal-body { padding: 30px; }

/* ---- 案例详情（模态框内） ---- */
.case-detail-hero {
    margin: -30px -30px 26px;
    padding: 36px 34px;
    color: #fff;
    position: relative;
    overflow: hidden;
}
.case-detail-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-card-sheen);
}
.case-detail-hero h2 {
    color: #fff;
    font-size: 1.6rem;
    position: relative;
    z-index: 1;
    margin-bottom: 10px;
}
.case-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    position: relative;
    z-index: 1;
}
.case-meta-item { font-size: .84rem; color: rgba(255,255,255,.85); display: flex; gap: 6px; }
.case-meta-label { opacity: .65; }

.case-detail-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 30px; }
.case-detail-content h2 { font-size: 1.4rem; margin-bottom: 16px; }
.case-detail-section { margin-bottom: 26px; }
.case-detail-section h3 {
    font-size: 1.05rem;
    margin-bottom: 14px;
    padding-left: 12px;
    border-left: 3px solid var(--gold);
}
.case-detail-section p { font-size: .92rem; line-height: 1.9; }

.case-points { display: flex; flex-direction: column; gap: 10px; }
.case-point { display: flex; gap: 12px; align-items: flex-start; }
.case-point-num {
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    border-radius: 8px;
    background: var(--grad-ink);
    color: var(--gold-bright);
    font-family: var(--font-mono);
    font-size: .72rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}
.case-point-text { font-size: .89rem; line-height: 1.8; color: var(--text-2); }

.case-detail-sidebar { display: flex; flex-direction: column; gap: 18px; }
.case-sidebar-card {
    background: var(--paper);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 22px;
}
.case-sidebar-card h4 {
    font-size: .98rem;
    margin-bottom: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--hairline);
}
.case-summary-list { display: flex; flex-direction: column; }
.case-summary-item {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    font-size: .86rem;
    border-bottom: 1px dashed var(--hairline);
}
.case-summary-item:last-child { border-bottom: none; }
.case-summary-label { color: var(--text-3); flex-shrink: 0; }
.case-summary-value { color: var(--text); font-weight: 600; text-align: right; }

/* ================= 合作伙伴（兼容） ================= */
.partners-strip { padding: var(--space-2xl) 0; border-top: 1px solid var(--hairline); }
.partners-label {
    text-align: center;
    font-family: var(--font-mono);
    font-size: .76rem;
    letter-spacing: .3em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 24px;
}
.partners-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px 40px;
}
.partner-logo {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-3);
    opacity: .75;
    transition: all var(--transition-fast);
}
.partner-logo:hover { opacity: 1; color: var(--ink); }

/* ================= 页脚 ================= */
.footer {
    background: var(--ink-deep);
    color: rgba(244, 241, 232, .72);
    padding: var(--space-3xl) 0 0;
    position: relative;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold) 0%, rgba(176,141,62,.2) 50%, var(--gold) 100%);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
    gap: var(--space-2xl);
    padding-bottom: var(--space-2xl);
}

.footer-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 14px;
}
.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--grad-gold);
}

.footer-desc {
    font-size: .88rem;
    line-height: 1.9;
    color: rgba(244, 241, 232, .6);
    margin-bottom: 22px;
}

.footer-socials { display: flex; gap: 10px; }
.footer-socials a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--hairline-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(244, 241, 232, .75);
    transition: all var(--transition-fast);
}
.footer-socials a:hover {
    background: var(--grad-gold);
    border-color: transparent;
    color: #fff;
    transform: translateY(-3px);
}
.footer-socials svg { width: 17px; height: 17px; }

.footer-brand h3 { color: #fff; font-size: 1.2rem; margin-bottom: 14px; }
.footer-brand p { color: rgba(244,241,232,.6); font-size: .9rem; }
.footer-slogan {
    margin-top: 16px;
    padding: 12px 18px;
    border-left: 3px solid var(--gold);
    background: rgba(255,255,255,.04);
    font-size: .86rem;
    color: rgba(244,241,232,.75);
}

.footer-links { display: flex; flex-direction: column; gap: 2px; }
.footer-links a,
.footer-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    padding: 7px 0 7px 16px;
    font-size: .9rem;
    color: rgba(244, 241, 232, .62);
    transition: all var(--transition-fast);
}
.footer-links a::before,
.footer-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 1px;
    background: var(--gold);
    transform: translateY(-50%) rotate(45deg) scale(0);
    transition: transform var(--transition-fast);
}
.footer-links a:hover,
.footer-link:hover { color: #fff; padding-left: 22px; }
.footer-links a:hover::before,
.footer-link:hover::before { transform: translateY(-50%) rotate(45deg) scale(1); }

.footer-contact-list { display: flex; flex-direction: column; gap: 16px; }
.footer-contact-item { display: flex; gap: 13px; align-items: flex-start; }
.footer-contact-icon {
    width: 38px;
    height: 38px;
    flex-shrink: 0;
    border-radius: 10px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--hairline-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-bright);
}
.footer-contact-icon svg { width: 17px; height: 17px; }
.footer-contact-label { font-size: .74rem; letter-spacing: .04em; color: rgba(244,241,232,.5); margin-bottom: 2px; }
.footer-contact-value { font-size: .92rem; font-weight: 600; color: rgba(244,241,232,.88); }
.footer-contact-value a { color: inherit; }
.footer-contact-value a:hover { color: var(--gold-bright); }

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding: 22px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: .8rem;
    color: rgba(244, 241, 232, .45);
}
.footer-icp a { color: rgba(244,241,232,.45); transition: color var(--transition-fast); }
.footer-icp a:hover { color: var(--gold-bright); }

/* ================= 浮动分享按钮 ================= */
.share-fab {
    position: fixed;
    right: 20px;
    bottom: 90px;
    z-index: 998;
}
.share-fab-btn {
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--grad-ink);
    border: none;
    color: #fff;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    position: relative;
}
.share-fab-btn svg { width: 22px; height: 22px; }
.share-fab-btn:hover { transform: scale(1.08); box-shadow: 0 8px 28px rgba(10,36,99,.28); }
.share-fab.active .share-fab-btn { background: var(--gold); transform: scale(1.05); }
.share-fab.active .share-fab-btn svg { transform: rotate(15deg); transition: transform .3s; }

.share-fab-menu {
    position: absolute;
    bottom: 58px;
    right: 0;
    flex-direction: column;
    gap: 6px;
    background: var(--surface);
    border-radius: 14px;
    padding: 8px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--hairline);
    min-width: 140px;
}
.share-fab-item {
    display: flex; align-items: center; gap: 10px;
    width: 100%;
    padding: 10px 14px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: 10px;
    font-size: .85rem;
    color: var(--text);
    transition: background var(--transition-fast), color var(--transition-fast);
    font-family: var(--font-body);
}
.share-fab-item svg { width: 18px; height: 18px; color: var(--ink-700); flex-shrink: 0; }
.share-fab-item:hover { background: var(--paper); color: var(--ink); }
.share-fab-item:hover svg { color: var(--gold); }

@media (max-width: 600px) {
    .share-fab { right: 14px; bottom: 80px; }
    .share-fab-btn { width: 44px; height: 44px; }
    .share-fab-btn svg { width: 20px; height: 20px; }
}

/* ================= 旧版 about 兼容 ================= */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3xl); align-items: center; }
.about-image-card {
    position: relative;
    background: var(--grad-ink);
    border-radius: var(--radius-xl);
    padding: 46px 38px;
    color: #fff;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}
.about-image-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--grad-card-sheen);
}
.about-image-content { position: relative; z-index: 1; }
.about-stats-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 26px; }
.about-stat { text-align: center; }
.about-lead { font-size: 1.05rem; color: var(--text); line-height: 1.9; margin-bottom: 18px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 24px; }
.about-feature { display: flex; gap: 12px; align-items: flex-start; }
.about-feature-icon {
    width: 40px; height: 40px; flex-shrink: 0;
    border-radius: 10px;
    background: var(--paper);
    border: 1px solid var(--hairline);
    display: flex; align-items: center; justify-content: center;
    color: var(--ink);
}
.about-feature-icon svg { width: 19px; height: 19px; }
.about-feature h5 { font-size: .96rem; margin-bottom: 4px; }
.about-feature p { font-size: .82rem; margin: 0; }

.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; }

/* ================= 滚动动效 ================= */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .8s var(--ease-out), transform .8s var(--ease-out);
    will-change: opacity, transform;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }
.reveal-delay-4 { transition-delay: .32s; }
.reveal-delay-5 { transition-delay: .4s; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
    html { scroll-behavior: auto; }
}

/* ================= 响应式 ================= */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; gap: var(--space-2xl); }
    .hero { min-height: 0; }
    .hero-visual { max-width: 560px; }
    .hero-bf-2 { left: -8px; }
    .process-timeline { grid-template-columns: repeat(3, 1fr); gap: 34px 20px; }
    .process-timeline::before { display: none; }
    .process-overview { flex-direction: column; gap: 14px; }
    .po-arrow { transform: rotate(90deg); margin: 0 auto; width: 26px; }
    .process-detail-row,
    .process-detail-row.reverse { grid-template-columns: 1fr; }
    .process-detail-row.reverse .process-detail-left { order: 0; }
    .process-detail-row.reverse .process-detail-right { order: 1; }
    .milestone-line { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
    .milestone-line::before { display: none; }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
    .service-detail-block { grid-template-columns: 1fr; gap: var(--space-xl); }
    .service-detail-block:nth-child(even) { direction: ltr; }
    .service-detail-block.reverse > .service-detail-content { order: 0; }
    .service-detail-block.reverse > .service-detail-visual { order: 1; }
    .about-split { grid-template-columns: 1fr; gap: var(--space-2xl); }
    .contact-wrap { grid-template-columns: 1fr; }
    .case-detail-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    :root { --space-3xl: 3.2rem; }
    .nav-menu { display: none; }
    .nav-toggle { display: flex; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .hero-stats { flex-wrap: wrap; gap: 18px 0; }
    .hero-stats > div { flex: 1 1 40%; padding: 0 14px; }
    .hero-stats > div:nth-child(odd) { border-left: none; padding-left: 0; }
    .hero-badge-float { display: none; }
    .scroll-indicator { display: none; }
    .cta-card { grid-template-columns: 1fr; padding: 40px 30px; text-align: center; }
    .cta-left p { margin-left: auto; margin-right: auto; }
    .cta-tel { justify-content: center; }
    .cta-right { display: flex; justify-content: center; }
    .news-list-item { grid-template-columns: 1fr; }
    .news-list-cover { min-height: 170px; }
    .process-timeline { grid-template-columns: 1fr; gap: 30px; }
    .milestone-line { grid-template-columns: 1fr; gap: 36px; }
    .contact-form-card { padding: 28px 22px; }
    .form-row-2, .form-row, .contact-form .form-row-2 { grid-template-columns: 1fr; gap: 0; }
    .service-detail-list { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 34px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .culture-card { padding: 36px 24px; }
    .page-header { padding: calc(var(--nav-h) + var(--space-2xl)) 0 var(--space-2xl); }
    .about-stat-block { grid-template-columns: repeat(3, 1fr); }
    .modal-box { border-radius: var(--radius-lg); }
    .modal-body { padding: 22px; }
    .case-detail-hero { margin: -22px -22px 22px; padding: 28px 22px; }
}

@media (max-width: 480px) {
    .grid-4 { grid-template-columns: 1fr; }
    .btn-group .btn { width: 100%; }
    .hero-tags { gap: 7px; }
    .hero-tag { font-size: .76rem; padding: 5px 11px; }
    .filter-bar { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 8px; }
    .filter-chip { flex-shrink: 0; }
    .contact-submit-row { flex-direction: column; align-items: stretch; }
    .contact-submit-row .btn { width: 100%; }
    .process-detail-right { padding: 26px 22px; }
    .process-detail-left { padding: 32px 26px; }
}

/* ================= 工具类 ================= */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--ink); }
.text-accent { color: var(--azure); }
.text-gold { color: var(--gold); }
.text-muted { color: var(--text-3); }
.font-bold { font-weight: 700; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.w-full { width: 100%; }