/* ============================================================
   北京站 全站样式（依据《北京站设计规范.md》）
   识别前缀：CSS 变量 --bj- / 类名前缀 bj-
   ============================================================ */

/* ---------- 本地自托管字体（禁 Google Fonts CDN） ---------- */
@font-face {
    font-family: 'chinese-simplified';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('/static/beijing/font/chinese-simplified-300-normal.woff2') format('woff2');
}
@font-face {
    font-family: 'chinese-simplified';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('/static/beijing/font/chinese-simplified-400-normal.woff2') format('woff2');
}
@font-face {
    font-family: 'chinese-simplified';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('/static/beijing/font/chinese-simplified-500-normal.woff2') format('woff2');
}
@font-face {
    font-family: 'chinese-simplified';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('/static/beijing/font/chinese-simplified-700-normal.woff2') format('woff2');
}

/* ---------- 设计变量 ---------- */
:root {
    --bj-primary: #1A5CB8;        /* 品牌脊梁：主按钮/标题/链接 */
    --bj-primary-dark: #0F3D8E;   /* 深色区块压底、页脚、hover */
    --bj-primary-light: #3D7ADD;  /* 选中态、淡蓝底、装饰线 */
    --bj-primary-soft: rgba(26, 92, 184, .08); /* 淡蓝底 */
    --bj-gold: #C9A227;           /* 皇城尊贵点缀 */
    --bj-gold-dark: #A8862B;      /* 鎏金 hover */
    --bj-gold-light: #EACB77;     /* 鎏金高光 */
    --bj-gold-grad: linear-gradient(135deg, #F0D68C 0%, var(--bj-gold) 46%, var(--bj-gold-dark) 100%); /* 鎏金渐变（明→暗金属质感） */
    --bj-gray: #5B6B7B;           /* 次要文字（城墙灰） */
    --bj-bg: #FFFFFF;             /* 主背景（禁灰背景） */
    --bj-bg-alt: #F6F9FE;         /* 交替区块 */
    --bj-text: #1F2430;           /* 正文近黑 */
    --bj-border: #E3E8EF;         /* 城墙灰描边 */
    /* 城墙砖缝底纹（错缝纹理，极淡，铺底提升质感；呼应皇城砖墙与中轴秩序） */
    --bj-texture-brick: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='64'%3E%3Cg fill='none' stroke='%23E3E8EF' stroke-width='1' stroke-opacity='.35'%3E%3Cpath d='M0 0h64M0 32h64M0 64h64M0 0v32M32 32v32'/%3E%3C/g%3E%3C/svg%3E");

    --bj-font: 'chinese-simplified', "Microsoft YaHei", "PingFang SC", -apple-system, BlinkMacSystemFont, sans-serif;
    --bj-radius: 4px;             /* 小圆角，庄重克制 */
    --bj-radius-lg: 6px;
    --bj-transition: all .25s ease;
}

/* ---------- 基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; }
body {
    font-family: var(--bj-font);
    font-weight: 400;
    font-size: 16px;
    line-height: 1.7;
    color: var(--bj-text);
    background-color: var(--bj-bg);
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: var(--bj-transition); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.icon-svg { width: 1em; height: 1em; display: inline-block; vertical-align: middle; flex-shrink: 0; }
.icon-svg-lg { width: 1.4em; height: 1.4em; }
.icon-svg-sm { width: .9em; height: .9em; }

/* ---------- 滚动入场（IntersectionObserver 触发） ---------- */
[data-reveal] {
    opacity: 0; transform: translateY(34px);
    transition: opacity .9s cubic-bezier(.22, .61, .36, 1), transform .9s cubic-bezier(.22, .61, .36, 1);
}
[data-reveal].in-view { opacity: 1; transform: translateY(0); }

/* ---------- 区块标题 ---------- */
.bj-section { padding: 88px 0; }
.bj-section-alt {
    background-color: var(--bj-bg-alt);
    background-image: var(--bj-texture-brick);
    background-size: 64px 64px;
}
.bj-section-head { text-align: center; margin-bottom: 52px; }
.bj-section-eyebrow {
    display: inline-block; margin-bottom: 12px;
    font-size: 13px; font-weight: 500; letter-spacing: 4px; text-transform: uppercase;
    color: var(--bj-gold-dark);
}
.bj-section-title {
    font-size: 34px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--bj-text);
    letter-spacing: 1px;
}
.bj-section-sub {
    margin-top: 14px;
    font-size: 16px;
    color: var(--bj-gray);
    font-weight: 300;
}
/* 鎏金横线装饰（中轴点缀） */
.bj-mid-line {
    width: 56px; height: 3px; margin: 20px auto 0;
    background: linear-gradient(90deg, transparent, var(--bj-gold), transparent);
}

/* ---------- 按钮 ---------- */
.bj-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 26px; border-radius: var(--bj-radius);
    font-size: 16px; font-weight: 500; line-height: 1; border: none;
    white-space: nowrap; transition: var(--bj-transition);
}
.bj-btn-lg { padding: 15px 32px; font-size: 17px; }
/* 主按钮：蓝底白字 */
.bj-btn-primary { background: var(--bj-primary); color: #fff; }
.bj-btn-primary:hover { background: var(--bj-primary-dark); transform: translateY(-2px); }
/* 次按钮：白底 + 蓝描边，蓝字 */
.bj-btn-outline { background: transparent; color: var(--bj-primary); border: 1.5px solid var(--bj-primary); }
.bj-btn-outline:hover { background: var(--bj-primary-soft); border-color: var(--bj-primary-dark); color: var(--bj-primary-dark); }
/* 金 CTA：鎏金底深字（关键转化）+ 背景流光循环 */
.bj-btn-gold {
    position: relative; overflow: hidden;
    background: var(--bj-gold-grad);
    background-size: 220% 220%;
    background-position: 0% 50%;
    animation: bjGoldFlow 7s ease-in-out infinite;
    color: #2B2100;
}
.bj-btn-gold::after {
    content: ''; position: absolute; top: 0; left: -120%; width: 55%; height: 100%;
    background: linear-gradient(100deg, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, .55) 50%, rgba(255, 255, 255, 0) 100%);
    transform: skewX(-22deg);
    animation: bjGoldShimmer 3s ease-in-out infinite;
}
.bj-btn-gold > * { position: relative; z-index: 1; }
.bj-btn-gold:hover { filter: brightness(1.06); transform: translateY(-2px); }
.bj-btn-gold:hover::after { animation-duration: 1.6s; }
@keyframes bjGoldShimmer { 0% { left: -120%; } 55%, 100% { left: 130%; } }
@keyframes bjGoldFlow { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
/* 白底按钮（深色区块上） */
.bj-btn-white { background: #fff; color: var(--bj-primary-dark); }
.bj-btn-white:hover { background: var(--bj-bg-alt); transform: translateY(-2px); }
/* Hero 场景自适应描边按钮 */
.bj-hero .bj-btn-outline { color: #fff; border-color: rgba(255, 255, 255, .55); }
.bj-hero .bj-btn-outline:hover { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .85); }

/* ============================================================
   顶部导航栏
   ============================================================ */
.bj-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--bj-border);
}
.bj-header-inner {
    max-width: 1200px; margin: 0 auto; padding: 0 24px;
    height: 76px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
}
.bj-logo { display: flex; align-items: center; flex-shrink: 0; justify-self: start; }
.bj-logo img { height: 42px; }
.bj-nav { display: flex; align-items: center; gap: 4px; justify-self: center; }
.bj-nav a,
.bj-nav-dropdown > a {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 10px 16px; font-size: 16px; font-weight: 400;
    color: var(--bj-text); position: relative;
}
.bj-nav a.active,
.bj-nav a:hover { color: var(--bj-primary); }
.bj-nav a.active::after {
    content: ''; position: absolute; left: 16px; right: 16px; bottom: 4px;
    height: 2px; background: linear-gradient(90deg, transparent, var(--bj-gold), transparent);
}
/* 下拉菜单 */
.bj-nav-dropdown { position: relative; }
.bj-nav-dropdown-menu {
    position: absolute; top: 100%; left: 0; min-width: 180px;
    background: #fff; border: 1px solid var(--bj-border);
    padding: 10px 0; opacity: 0; visibility: hidden;
    transform: translateY(10px); transition: var(--bj-transition);
    box-shadow: 0 12px 30px rgba(15, 61, 142, .08);
}
.bj-nav-dropdown:hover .bj-nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.bj-nav-dropdown-menu a {
    display: block; padding: 9px 20px; font-size: 15px; color: var(--bj-gray);
    border-left: 2px solid transparent;
}
.bj-nav-dropdown-menu a:hover { color: var(--bj-primary); background: var(--bj-primary-soft); border-left-color: var(--bj-gold); }
/* 右侧电话 */
.bj-header-actions { justify-self: end; flex-shrink: 0; }
.bj-header-phone { display: inline-flex; align-items: center; gap: 10px; padding: 8px 4px; }
.bj-header-phone-icon {
    width: 42px; height: 42px; border-radius: 50%;
    background: var(--bj-primary-soft); color: var(--bj-primary);
    display: grid; place-items: center;
}
.bj-header-phone-text { display: flex; flex-direction: column; line-height: 1.3; }
.bj-header-phone-text small { font-size: 12px; color: var(--bj-gray); font-weight: 300; }
.bj-header-phone-text strong { font-size: 18px; color: var(--bj-primary); font-weight: 700; letter-spacing: .5px; }
/* 汉堡按钮（隐藏，移动端显示） */
.bj-nav-toggle { display: none; margin-left: auto; width: 44px; height: 44px; place-items: center; color: var(--bj-primary); }

/* 移动端抽屉 */
.bj-mobile-overlay {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(15, 22, 35, .45); opacity: 0; visibility: hidden; transition: var(--bj-transition);
}
.bj-mobile-overlay.open { opacity: 1; visibility: visible; }
.bj-mobile-menu {
    position: fixed; top: 0; right: 0; bottom: 0; z-index: 201;
    width: 300px; max-width: 82vw; background: #fff;
    transform: translateX(100%); transition: transform .3s ease;
    display: flex; flex-direction: column;
    padding-bottom: env(safe-area-inset-bottom);
}
.bj-mobile-menu.open { transform: translateX(0); }
.bj-mobile-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--bj-border); }
.bj-mobile-header img { height: 34px; }
.bj-mobile-close { width: 44px; height: 44px; border: none; background: transparent; font-size: 26px; color: var(--bj-text); }
.bj-mobile-nav { flex: 1; overflow-y: auto; padding: 12px 0; }
.bj-mobile-nav > a { display: block; padding: 14px 20px; font-size: 16px; color: var(--bj-text); border-bottom: 1px solid var(--bj-border); }
.bj-mobile-group > a { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; font-size: 16px; color: var(--bj-text); border-bottom: 1px solid var(--bj-border); }
.bj-mobile-arrow { transition: transform .25s ease; font-size: 12px; color: var(--bj-gray); }
.bj-mobile-submenu { display: none; background: var(--bj-bg-alt); }
.bj-mobile-submenu a { display: block; padding: 11px 20px 11px 34px; font-size: 15px; color: var(--bj-gray); }
.bj-mobile-submenu a:first-child { font-weight: 600; color: var(--bj-primary); }

/* ============================================================
   Hero 首屏（中轴对称）
   ============================================================ */
.bj-hero {
    position: relative; overflow: hidden;
    min-height: 82vh; display: flex; align-items: center; justify-content: center;
    text-align: center; color: #fff;
}
.bj-hero-bg {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    transform: scale(1.03);
    animation: bjHeroZoom 2.6s cubic-bezier(.22, .61, .36, 1) both,
               bjHeroSlowZoom 26s ease-in-out 2.6s infinite;
    will-change: transform, background-position;
}
/* 深蓝渐变遮罩，保证文字可读 + 庄重感 */
.bj-hero-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(15, 35, 75, .62) 0%, rgba(15, 35, 75, .55) 45%, rgba(15, 35, 75, .72) 100%);
}
.bj-hero-inner { position: relative; z-index: 2; max-width: 860px; padding: 40px 24px; }
.bj-hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 18px; margin-bottom: 26px;
    font-size: 14px; letter-spacing: 2px; font-weight: 400;
    color: #EFE3BC; border: 1px solid rgba(201, 162, 39, .55);
    border-radius: 40px; background: rgba(201, 162, 39, .1);
}
.bj-hero-badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--bj-gold); }
/* 鎏金饰线 */
.bj-hero-line { width: 72px; height: 2px; margin: 0 auto 24px; background: linear-gradient(90deg, transparent, var(--bj-gold), transparent); }
.bj-hero-title {
    font-size: 52px; font-weight: 700; line-height: 1.25; letter-spacing: 2px;
    text-shadow: 0 4px 24px rgba(0, 0, 0, .35);
}
.bj-hero-title .bj-hero-line1 { font-size: .58em; font-weight: 700; }
.bj-hero-title .bj-hero-gold {
    font-size: 1.15em; font-weight: 800; /* 放大并加粗以突出主卖点 */
    background: linear-gradient(120deg, var(--bj-gold-dark) 0%, var(--bj-gold) 22%, var(--bj-gold-light) 46%, var(--bj-gold) 68%, var(--bj-gold-dark) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
    animation: bjTitleShimmer 6.5s ease-in-out infinite;
}
@keyframes bjTitleShimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}
.bj-hero-sub {
    margin: 22px auto 0;
    white-space: nowrap;                /* 单行不折行 */
    font-size: clamp(13px, 1.45vw, 18px);
    font-weight: 300; color: rgba(255, 255, 255, .82);
    letter-spacing: clamp(0, .05vw, 1px);
}
.bj-hero-tags { display: flex; justify-content: center; flex-wrap: wrap; gap: 14px 28px; margin-top: 30px; }
.bj-hero-tag { display: inline-flex; align-items: center; gap: 6px; font-size: 15px; color: rgba(255, 255, 255, .9); }
.bj-hero-tag .icon-svg { color: var(--bj-gold); }
.bj-hero-cta { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-top: 38px; }
.bj-hero-fade { position: absolute; left: 0; right: 0; bottom: 0; height: 120px; background: linear-gradient(180deg, transparent, var(--bj-bg)); }
/* 向下滚动指示（鼠标造型） */
.bj-hero-scroll {
    position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
    z-index: 3; width: 26px; height: 42px; box-sizing: border-box;
    border: 2px solid rgba(255, 255, 255, .55); border-radius: 14px;
    display: flex; justify-content: center; padding-top: 7px;
    transition: border-color .3s ease;
}
.bj-hero-scroll-dot {
    width: 4px; height: 8px; border-radius: 2px; background: var(--bj-gold);
    animation: bjScrollHint 1.7s ease-in-out infinite;
}
.bj-hero-scroll:hover { border-color: var(--bj-gold); }

/* ---------- Hero 入场 / 交互动画 ---------- */
@keyframes bjHeroZoom { from { transform: scale(1.16); } to { transform: scale(1.03); } }
@keyframes bjHeroSlowZoom { 0%, 100% { transform: scale(1.03); } 50% { transform: scale(1.1); } }
@keyframes bjHeroRise { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: translateY(0); } }
@keyframes bjHeroLineIn { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@keyframes bjBadgeBlink { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }
@keyframes bjBtnGlow { 0%, 100% { box-shadow: 0 8px 22px rgba(201, 162, 39, .28); } 50% { box-shadow: 0 10px 34px rgba(201, 162, 39, .55); } }

/* 文字阶梯入场 */
.bj-hero-badge { animation: bjHeroRise .9s cubic-bezier(.22, .61, .36, 1) .3s both; }
.bj-hero-badge::before { animation: bjBadgeBlink 2.4s ease-in-out infinite; }
.bj-hero-line { animation: bjHeroLineIn .9s ease .6s both; transform-origin: center; }
.bj-hero-title { animation: bjHeroRise 1s cubic-bezier(.22, .61, .36, 1) .6s both; }
.bj-hero-sub { animation: bjHeroRise .9s cubic-bezier(.22, .61, .36, 1) .95s both; }
.bj-hero-tag { animation: bjHeroRise .8s cubic-bezier(.22, .61, .36, 1) both; }
.bj-hero-tag:nth-child(1) { animation-delay: 1.15s; }
.bj-hero-tag:nth-child(2) { animation-delay: 1.27s; }
.bj-hero-tag:nth-child(3) { animation-delay: 1.39s; }
.bj-hero-tag:nth-child(4) { animation-delay: 1.51s; }
.bj-hero-cta { animation: bjHeroRise .9s cubic-bezier(.22, .61, .36, 1) 1.4s both; }
/* 金色 CTA 呼吸光晕 */
.bj-hero .bj-btn-gold { animation: bjBtnGlow 2.8s ease-in-out 2.2s infinite, bjGoldFlow 7s ease-in-out infinite; }
.bj-hero .bj-btn-gold:hover { animation: none; box-shadow: 0 8px 30px rgba(201, 162, 39, .5); }

/* 顶部向下滚动指示 */
@keyframes bjScrollHint { 0%, 100% { transform: translateY(0); opacity: .9; } 50% { transform: translateY(8px); opacity: .4; } }

/* ---------- Hero 背景：鎏金浮光循环动效 ---------- */
.bj-hero-glow {
    position: absolute; inset: 0; z-index: 1; pointer-events: none; overflow: hidden;
    background: radial-gradient(60% 46% at 50% 34%, rgba(234, 203, 119, .2) 0%, transparent 62%);
    animation: bjGlowBreathe 7.5s ease-in-out infinite;
}
.bj-hero-glow::before, .bj-hero-glow::after {
    content: ''; position: absolute; border-radius: 50%;
    filter: blur(52px); will-change: transform, opacity;
}
.bj-hero-glow::before {
    width: 560px; height: 560px; left: 2%; top: 8%;
    background: radial-gradient(circle, rgba(201, 162, 39, .62) 0%, transparent 66%);
    animation: bjGlowDriftA 13s ease-in-out infinite;
}
.bj-hero-glow::after {
    width: 500px; height: 500px; right: 3%; bottom: 5%;
    background: radial-gradient(circle, rgba(234, 203, 119, .52) 0%, transparent 64%);
    animation: bjGlowDriftB 17s ease-in-out infinite;
}
@keyframes bjGlowBreathe { 0%, 100% { opacity: .72; } 50% { opacity: 1; } }
@keyframes bjGlowDriftA {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: .62; }
    50% { transform: translate(150px, 96px) scale(1.22); opacity: .95; }
}
@keyframes bjGlowDriftB {
    0%, 100% { transform: translate(0, 0) scale(1.12); opacity: .56; }
    50% { transform: translate(-120px, -80px) scale(.88); opacity: .88; }
}

/* ============================================================
   服务范围（主营业务双卡一行 + 其他创意小卡组合）
   ============================================================ */
.bj-services { display: flex; flex-direction: column; gap: 30px; }

/* --- 主营业务：一行双大卡 --- */
.bj-services-main {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px;
    counter-reset: svc;
}
.bj-service-card {
    position: relative; display: block;
    background: #fff; border: 1px solid var(--bj-border);
    border-radius: var(--bj-radius-lg); overflow: hidden;
    counter-increment: svc;
    transition: box-shadow .35s ease, border-color .35s ease;
}
/* 顶部细鎏金饰线（hover 展开） */
.bj-service-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--bj-gold), rgba(201, 162, 39, .3));
    transform: scaleX(.3); transform-origin: left; transition: transform .5s ease;
    z-index: 4;
}
.bj-service-card:hover::before { transform: scaleX(1); }
.bj-service-card:hover {
    border-color: var(--bj-primary-light);
    box-shadow: 0 22px 48px rgba(15, 61, 142, .14);
}
.bj-service-media { position: relative; height: 216px; overflow: hidden; }
.bj-service-card-main .bj-service-media { height: 252px; }
.bj-service-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.bj-service-card:hover .bj-service-media img { transform: scale(1.08); }
/* 序号角标（0X） */
.bj-service-media::before {
    content: counter(svc, decimal-leading-zero);
    position: absolute; top: 14px; right: 18px; z-index: 3;
    font-size: 54px; font-weight: 700; line-height: 1; font-style: italic;
    color: rgba(255, 255, 255, .5); text-shadow: 0 4px 14px rgba(0, 0, 0, .35);
    transition: color .35s ease, transform .35s ease;
}
.bj-service-card:hover .bj-service-media::before { color: var(--bj-gold); transform: translateY(-4px); }
/* 蓝金渐变遮罩（hover 提亮） */
.bj-service-media::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(15, 40, 80, .05) 38%, rgba(15, 40, 80, .6));
    transition: background .4s ease;
}
.bj-service-card:hover .bj-service-media::after { background: linear-gradient(180deg, rgba(26, 92, 184, .18) 16%, rgba(15, 61, 142, .7)); }
/* 主营业务角标 */
.bj-service-main-badge {
    position: absolute; top: 16px; left: 18px; z-index: 3;
    padding: 5px 14px; font-size: 12.5px; font-weight: 500; letter-spacing: 1px;
    color: #2B2100; background: var(--bj-gold-grad);
    border-radius: 3px; box-shadow: 0 4px 12px rgba(0, 0, 0, .18);
}
.bj-service-body { padding: 22px 24px 26px; }
.bj-service-body h3 { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: var(--bj-text); margin-bottom: 10px; }
.bj-service-body h3::before { content: ''; width: 5px; height: 18px; background: linear-gradient(180deg, var(--bj-gold-light), var(--bj-gold), var(--bj-gold-dark)); border-radius: 2px; flex-shrink: 0; }
.bj-service-body p { font-size: 14.5px; color: var(--bj-gray); line-height: 1.7; min-height: 48px; }
.bj-service-link {
    display: inline-flex; align-items: center; gap: 6px;
    margin-top: 16px; font-size: 15px; font-weight: 500; color: var(--bj-primary);
    position: relative;
}
.bj-service-link::after { content: ''; position: absolute; left: 0; bottom: -4px; height: 2px; width: 100%; background: linear-gradient(90deg, var(--bj-gold-light), var(--bj-gold), var(--bj-gold-dark)); transform: scaleX(0); transform-origin: left; transition: transform .4s ease; }
.bj-service-link .icon-svg { transition: transform .3s ease; }
.bj-service-card:hover .bj-service-link { color: var(--bj-gold-dark); }
.bj-service-card:hover .bj-service-link::after { transform: scaleX(1); }
.bj-service-card:hover .bj-service-link .icon-svg { transform: translateX(5px); }

/* --- 其他业务：创意小卡组合（低高度紧凑卡） --- */
.bj-services-mini {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.bj-service-mini {
    display: flex; align-items: center; gap: 14px;
    min-height: 86px; padding: 12px 16px;
    background: #fff; border: 1px solid var(--bj-border);
    border-radius: var(--bj-radius-lg);
    transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease;
}
.bj-service-mini-thumb {
    width: 58px; height: 58px; border-radius: var(--bj-radius);
    overflow: hidden; flex-shrink: 0;
}
.bj-service-mini-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.bj-service-mini:hover .bj-service-mini-thumb img { transform: scale(1.1); }
.bj-service-mini-body { min-width: 0; }
.bj-service-mini-body h4 {
    font-size: 15px; font-weight: 600; color: var(--bj-text);
    margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.bj-service-mini-body p {
    font-size: 12.5px; color: var(--bj-gray); line-height: 1.5;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
/* 末位小卡加宽，让 4+3 视觉平衡 */
.bj-services-mini .bj-service-mini:last-child { grid-column: span 2; }
.bj-service-mini:hover {
    border-color: var(--bj-primary-light);
    box-shadow: 0 14px 30px rgba(15, 61, 142, .12);
    transform: translateY(-3px);
}

/* ============================================================
   数据背书条（深蓝区块）
   ============================================================ */
.bj-stats { background: var(--bj-primary-dark); color: #fff; padding: 56px 0; }
.bj-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.bj-stat-number { font-size: 44px; font-weight: 700; color: #EFE3BC; letter-spacing: 1px; }
.bj-stat-label { margin-top: 8px; font-size: 16px; color: rgba(255, 255, 255, .78); font-weight: 300; }
.bj-stat-item { display: flex; flex-direction: column; align-items: center; }

/* ============================================================
   首页扩展板块：核心优势 / 服务流程 / 客户案例 / 行业资讯 / 资质
   ============================================================ */
/* --- 核心优势：分栏对比 4 卡 --- */
.bj-advantage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.bj-advantage-card {
    position: relative; text-align: center; padding: 38px 26px 32px;
    background: #fff; border: 1px solid var(--bj-border); border-radius: var(--bj-radius-lg);
    transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.bj-advantage-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--bj-gold), rgba(201, 162, 39, .3));
    transform: scaleX(.35); transform-origin: left; transition: transform .5s ease;
}
.bj-advantage-card:hover::before { transform: scaleX(1); }
.bj-advantage-card:hover {
    transform: translateY(-6px); border-color: var(--bj-primary-light);
    box-shadow: 0 18px 40px rgba(15, 61, 142, .12);
}
.bj-advantage-icon {
    width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%;
    display: grid; place-items: center;
    background: var(--bj-primary-soft); color: var(--bj-primary);
    font-size: 28px; transition: var(--bj-transition);
}
.bj-advantage-icon .icon-svg { width: 1.5em; height: 1.5em; }
.bj-advantage-card:hover .bj-advantage-icon { background: var(--bj-gold-grad); color: #2B2100; }
.bj-advantage-card h3 { font-size: 20px; font-weight: 700; color: var(--bj-text); margin-bottom: 10px; }
.bj-advantage-card p { font-size: 14.5px; color: var(--bj-gray); line-height: 1.7; }

/* --- 服务流程：时间轴 / 步骤线 --- */
.bj-process { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.bj-process::before {
    content: ''; position: absolute; top: 36px; left: 10%; right: 10%; height: 2px;
    background: linear-gradient(90deg, var(--bj-gold), rgba(201, 162, 39, .35), var(--bj-gold));
    z-index: 0;
}
.bj-process-item { position: relative; z-index: 1; text-align: center; padding: 0 8px; }
.bj-process-num {
    width: 72px; height: 72px; margin: 0 auto 18px; border-radius: 50%;
    display: grid; place-items: center;
    background: #fff; border: 2px solid var(--bj-gold);
    font-size: 26px; font-weight: 700; color: var(--bj-gold-dark);
    box-shadow: 0 0 0 6px #fff;
    transition: var(--bj-transition);
}
.bj-process-item:hover .bj-process-num { background: var(--bj-gold-grad); color: #2B2100; box-shadow: 0 0 0 6px #fff, 0 10px 22px rgba(169, 134, 43, .28); }
.bj-process-item h3 { font-size: 19px; font-weight: 700; color: var(--bj-text); margin-bottom: 8px; }
.bj-process-item p { font-size: 14px; color: var(--bj-gray); line-height: 1.7; }

/* --- 客户案例：品牌墙 --- */
.bj-cases-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.bj-case-card {
    background: #fff; border: 1px solid var(--bj-border); border-radius: var(--bj-radius-lg);
    padding: 16px 10px 12px; text-align: center;
    transition: var(--bj-transition);
}
.bj-case-card:hover {
    border-color: var(--bj-primary-light);
    box-shadow: 0 12px 26px rgba(15, 61, 142, .1);
    transform: translateY(-4px);
}
.bj-case-img {
    height: 68px;
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.bj-case-img img {
    width: auto; height: auto; max-width: 100%; max-height: 100%;
    object-fit: contain; display: block;
    filter: grayscale(.25); transition: var(--bj-transition);
}
.bj-case-card:hover .bj-case-img img { filter: grayscale(0); transform: scale(1.05); }

/* --- 行业资讯：文章卡片 --- */
.bj-articles-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.bj-article-card {
    background: #fff; border: 1px solid var(--bj-border); border-radius: var(--bj-radius-lg);
    overflow: hidden; display: flex; flex-direction: column;
    transition: var(--bj-transition);
}
.bj-article-card:hover {
    border-color: var(--bj-primary-light);
    box-shadow: 0 18px 40px rgba(15, 61, 142, .12);
    transform: translateY(-4px);
}
.bj-article-cover { position: relative; height: 176px; overflow: hidden; background: var(--bj-bg-alt); }
.bj-article-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.bj-article-card:hover .bj-article-cover img { transform: scale(1.07); }
.bj-article-empty {
    position: absolute; inset: 0; display: grid; place-items: center;
    font-size: 13px; color: var(--bj-gray);
}
.bj-article-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.bj-article-cat {
    align-self: flex-start; padding: 4px 12px; border-radius: 3px;
    background: var(--bj-primary-soft); color: var(--bj-primary);
    font-size: 12.5px; font-weight: 500; margin-bottom: 12px;
}
.bj-article-body h3 { font-size: 17px; font-weight: 700; color: var(--bj-text); line-height: 1.5; margin-bottom: 12px; transition: var(--bj-transition); }
.bj-article-card:hover .bj-article-body h3 { color: var(--bj-primary); }
.bj-article-meta { margin-top: auto; font-size: 13px; color: var(--bj-gray); display: flex; align-items: center; gap: 5px; }
.bj-article-meta .icon-svg { color: var(--bj-gold); }
.bj-articles-more { text-align: center; margin-top: 40px; }

/* --- 资质：证书墙 --- */
.bj-credentials-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.bj-credential-card {
    background: #fff; border: 1px solid var(--bj-border); border-radius: var(--bj-radius-lg);
    padding: 20px 18px; text-align: center; transition: var(--bj-transition);
}
.bj-credential-card:hover {
    border-color: var(--bj-gold);
    box-shadow: 0 14px 30px rgba(169, 134, 43, .14);
    transform: translateY(-4px);
}
.bj-credential-img { height: 150px; display: grid; place-items: center; margin-bottom: 12px; }
.bj-credential-img img { max-height: 100%; width: auto; object-fit: contain; }
.bj-credential-card p { font-size: 15px; font-weight: 600; color: var(--bj-text); }

/* --- 服务区域：地域覆盖 --- */
.bj-coverage-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.bj-coverage-item {
    display: flex; align-items: flex-start; gap: 12px;
    background: #fff; border: 1px solid var(--bj-border); border-radius: var(--bj-radius-lg);
    padding: 18px 16px; transition: var(--bj-transition);
}
.bj-coverage-item:hover {
    border-color: var(--bj-primary-light);
    box-shadow: 0 12px 26px rgba(15, 61, 142, .08);
    transform: translateY(-3px);
}
.bj-coverage-icon {
    flex: 0 0 auto; width: 42px; height: 42px; border-radius: 10px;
    display: grid; place-items: center;
    background: linear-gradient(135deg, var(--bj-primary-light), rgba(26, 92, 184, .12));
    color: var(--bj-primary);
}
.bj-coverage-icon .icon-svg { width: 22px; height: 22px; }
.bj-coverage-body h3 { font-size: 16px; font-weight: 700; color: var(--bj-text); margin-bottom: 4px; }
.bj-coverage-body p { font-size: 13px; color: var(--bj-gray); line-height: 1.6; }

/* --- 常见问题 FAQ 手风琴（2 列网格） --- */
.bj-faq-list {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
    max-width: 1060px; margin: 0 auto; align-items: start;
}
.bj-faq-item {
    background: #fff; border: 1px solid var(--bj-border); border-radius: var(--bj-radius-lg);
    overflow: hidden; transition: var(--bj-transition);
}
.bj-faq-item[open] { border-color: var(--bj-primary-light); box-shadow: 0 10px 24px rgba(15, 61, 142, .08); }
.bj-faq-q {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 18px 22px; cursor: pointer; list-style: none;
    font-size: 16px; font-weight: 600; color: var(--bj-text);
}
.bj-faq-q::-webkit-details-marker { display: none; }
.bj-faq-q .icon-svg { width: 16px; height: 16px; color: var(--bj-gold); transition: transform .3s ease; flex: 0 0 auto; }
.bj-faq-item[open] .bj-faq-q .icon-svg { transform: rotate(90deg); }
.bj-faq-a { padding: 0 22px 18px; font-size: 14px; color: var(--bj-gray); line-height: 1.8; }
.bj-faq-more { text-align: center; margin-top: 28px; }

/* ============================================================
   弹窗
   ============================================================ */
.bj-modal-overlay {
    position: fixed; inset: 0; z-index: 300;
    background: rgba(15, 22, 35, .45);
    display: flex; align-items: center; justify-content: center;
    padding: 20px; opacity: 0; visibility: hidden; transition: var(--bj-transition);
}
.bj-modal-overlay.active { opacity: 1; visibility: visible; }
.bj-modal {
    background: #fff; border-radius: 10px; width: 100%; max-width: 360px;
    overflow: hidden; transform: translateY(20px); transition: transform .3s ease;
    border: 1px solid var(--bj-border);
}
.bj-modal-overlay.active .bj-modal { transform: translateY(0); }
.bj-modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 22px; border-bottom: 1px solid var(--bj-border);
}
.bj-modal-header h3 { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; color: var(--bj-text); }
.bj-modal-header h3 .icon-svg { color: var(--bj-gold); }
.bj-modal-close { width: 44px; height: 44px; border: none; background: transparent; font-size: 26px; color: var(--bj-text); }
.bj-modal-body { padding: 24px 22px; }
.bj-phone-number {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    font-size: 30px; font-weight: 700; color: var(--bj-primary); letter-spacing: 1px;
}
.bj-qrcode-wrap { display: grid; place-items: center; margin-bottom: 16px; }
.bj-qrcode-wrap img { width: 180px; height: 180px; object-fit: contain; border: 1px solid var(--bj-border); border-radius: var(--bj-radius); }
.bj-qrcode-fallback { display: none; color: var(--bj-gray); font-size: 14px; padding: 20px; }
.bj-qrcode-wrap.qrcode-placeholder .bj-qrcode-fallback { display: block; }

/* 表单 */
.bj-form-group { margin-bottom: 14px; }
.bj-form-group label { display: block; font-size: 14px; color: var(--bj-gray); margin-bottom: 6px; font-weight: 400; }
.bj-form-group input[type="text"],
.bj-form-group input[type="tel"],
.bj-form-group input[type="number"],
.bj-form-group select {
    width: 100%; height: 46px; padding: 0 12px;
    border: 1px solid var(--bj-border); border-radius: var(--bj-radius);
    font-size: 15px; font-family: inherit; background: #fff; color: var(--bj-text);
    transition: var(--bj-transition);
}
.bj-form-group input:focus,
.bj-form-group select:focus { outline: none; border-color: var(--bj-primary); box-shadow: 0 0 0 3px var(--bj-primary-soft); }
.bj-form-error { display: block; color: #D63A2F; font-size: 13px; margin-top: 6px; }
.bj-quote-params { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.bj-quote-params .full-width { grid-column: 1 / -1; }
.bj-number-wrap { position: relative; display: flex; align-items: center; }
.bj-number-wrap input { padding-right: 46px; }
.bj-number-unit { position: absolute; right: 12px; font-size: 13px; color: var(--bj-gray); pointer-events: none; }
.bj-check-option {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 12px; border: 1px solid var(--bj-border); border-radius: var(--bj-radius);
    font-size: 14px; color: var(--bj-text); cursor: pointer;
}
.bj-check-option input { accent-color: var(--bj-primary); }
.bj-tip { font-size: 12.5px; color: var(--bj-gray); margin-top: 14px; text-align: center; }

/* ============================================================
   底部 CTA + 页脚
   ============================================================ */
.bj-footer-cta { background: var(--bj-primary-dark); color: #fff; padding: 60px 0; }
.bj-footer-cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.bj-footer-cta-left h2 { font-size: 30px; font-weight: 700; letter-spacing: 1px; }
.bj-footer-cta-left p { margin-top: 10px; font-size: 16px; color: rgba(255, 255, 255, .78); font-weight: 300; }
.bj-footer-cta-right { display: flex; gap: 14px; flex-wrap: wrap; }

.bj-footer { background: #0A1A38; color: rgba(255, 255, 255, .72); padding: 60px 0 0; }
.bj-footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.bj-footer-logo { height: 40px; margin-bottom: 14px; }
.bj-footer-company { font-size: 16px; font-weight: 500; color: #fff; margin-bottom: 12px; }
.bj-footer-desc { font-size: 14px; font-weight: 300; line-height: 1.8; }
.bj-footer-contact { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.bj-footer-contact-item { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.bj-footer-contact-item .icon-svg { color: var(--bj-gold); }
.bj-footer h4 { color: #fff; font-size: 16px; font-weight: 500; margin-bottom: 18px; letter-spacing: 1px; }
.bj-footer h4::after { content: ''; display: block; width: 28px; height: 2px; background: var(--bj-gold); margin-top: 12px; }
.bj-footer ul li { margin-bottom: 11px; }
.bj-footer ul li a { font-size: 14px; font-weight: 300; color: rgba(255, 255, 255, .65); }
.bj-footer ul li a:hover { color: #EFE3BC; }
.bj-footer-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 20px 0; }
.bj-footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 13px; color: rgba(255, 255, 255, .5); font-weight: 300; }
.bj-footer-bottom-inner a { color: rgba(255, 255, 255, .5); }
.bj-footer-bottom-inner a:hover { color: #EFE3BC; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 992px) {
    .bj-services-mini { grid-template-columns: repeat(3, 1fr); }
    .bj-services-mini .bj-service-mini:last-child { grid-column: 1 / -1; }
    .bj-stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 32px; }
    .bj-advantage-grid, .bj-credentials-grid { grid-template-columns: repeat(2, 1fr); }
    .bj-process { grid-template-columns: repeat(3, 1fr); row-gap: 36px; }
    .bj-process::before { display: none; }
    .bj-cases-grid { grid-template-columns: repeat(4, 1fr); }
    .bj-articles-grid { grid-template-columns: repeat(2, 1fr); }
    .bj-coverage-grid { grid-template-columns: repeat(2, 1fr); }
    .bj-footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .bj-section { padding: 56px 0; }
    .bj-section-title { font-size: 26px; }
    .bj-header-inner { grid-template-columns: 1fr auto; }
    .bj-nav, .bj-header-actions { display: none; }
    .bj-nav-toggle { display: grid; justify-self: end; }
    .bj-logo img { height: 34px; }
    .bj-hero { min-height: 74vh; }
    .bj-hero-inner { padding: 32px 20px; }
    .bj-hero-badge { font-size: 12px; letter-spacing: 1px; padding: 6px 14px; margin-bottom: 20px; }
    .bj-hero-line { margin-bottom: 18px; }
    .bj-hero-title { font-size: 30px; letter-spacing: 1px; }
    .bj-hero-title .bj-hero-line1 { letter-spacing: 0; }
    .bj-hero-sub { font-size: clamp(11px, 3.2vw, 15px); white-space: normal; line-height: 1.65; margin: 18px auto 0; max-width: 92%; }
    .bj-hero-tags { gap: 10px 16px; }
    .quote-params-grid { grid-template-columns: 1fr; }
    .modal-body { padding: 18px 16px; }
    .modal { max-height: calc(100vh - 24px); }
    /* 移动端压缩弹窗内容，保证短屏一屏内可完整显示 */
    .modal-quote .modal-header { padding: 12px 16px; }
    .modal-quote .modal-header h3 { font-size: 16px; }
    .modal-quote .modal-quote-title { gap: 8px; }
    .modal-quote .modal-quote-icon { width: 32px; height: 32px; }
    .modal-quote .modal-quote-title small { font-size: 11px; }
    .modal-quote .modal-close { width: 34px; height: 34px; font-size: 22px; }
    .modal-quote .modal-body { padding: 12px 16px; }
    .modal-quote .form-group { margin-bottom: 10px; }
    .modal-quote .form-group label { font-size: 13px; margin-bottom: 4px; }
    .modal-quote .form-group input[type="text"],
    .modal-quote .form-group input[type="tel"],
    .modal-quote .form-group input[type="number"],
    .modal-quote .form-group select { height: 40px; font-size: 14px; }
    .modal-quote .quote-params-grid { gap: 10px; }
    .modal-quote .check-option { padding: 6px 10px; font-size: 13px; }
    .modal-quote .modal-quote-submit { padding: 10px 16px; font-size: 15px; }
    .modal-quote .quote-tip { font-size: 11px; margin-top: 10px; }
    .bj-hero-cta { flex-direction: column; width: 100%; max-width: 320px; margin-left: auto; margin-right: auto; }
    .bj-hero-cta .bj-btn { width: 100%; }
    .bj-services { gap: 22px; }
    .bj-services-main { grid-template-columns: 1fr; gap: 18px; }
    .bj-services-mini { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .bj-services-mini .bj-service-mini:last-child { grid-column: span 2; }
    .bj-service-media, .bj-service-card-main .bj-service-media { height: 200px; }
    .bj-stat-number { font-size: 32px; }
    .bj-process { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
    .bj-cases-grid { grid-template-columns: repeat(2, 1fr); }
    .bj-coverage-grid { grid-template-columns: repeat(2, 1fr); }
    .bj-faq-list { grid-template-columns: 1fr; }
    .bj-footer-cta { padding: 44px 0; }
    .bj-footer-cta-left h2 { font-size: 24px; }
    .bj-footer-cta-right { width: 100%; flex-direction: column; }
    .bj-footer-cta-right .bj-btn { width: 100%; }
    .bj-footer-inner { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 520px) {
    .bj-hero-title { font-size: 26px; }
    .bj-hero-title .bj-hero-gold { font-size: 1.1em; }
    .bj-hero-badge { font-size: 11px; letter-spacing: .5px; }
    .bj-hero-tag { font-size: 13px; }
    .bj-services-mini { grid-template-columns: 1fr; }
    .bj-services-mini .bj-service-mini:last-child { grid-column: span 1; }
    .bj-advantage-grid, .bj-credentials-grid { grid-template-columns: 1fr; }
    .bj-process { grid-template-columns: 1fr; }
    .bj-cases-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .bj-case-img { height: 70px; }
    .bj-articles-grid { grid-template-columns: 1fr; }
    .bj-coverage-grid { grid-template-columns: 1fr; }
    .bj-faq-q { font-size: 15px; padding: 16px 18px; }
    .bj-faq-a { padding: 0 18px 16px; }
}

/* ============================================================
   内页公共：Banner / 面包屑 / 页内标题（庄重大图头，中轴对称）
   ============================================================ */
.bj-page-banner {
    position: relative; overflow: hidden;
    padding: 88px 0 72px;
    /* 复用首页首屏城市背景图 + 深蓝渐变遮罩，保证文字可读与庄重感 */
    background-image: linear-gradient(180deg, rgba(15, 35, 75, .72) 0%, rgba(15, 35, 75, .6) 45%, rgba(15, 35, 75, .78) 100%),
                      url('https://rxjimg.wukesiyi.com/static/beijing/img/bj-city.jpg');
    background-size: cover; background-position: center;
    color: #fff; text-align: center;
}
.bj-page-banner::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background-image: var(--bj-texture-brick);
    background-size: 64px 64px; opacity: .12;
}
.bj-page-banner::after {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background: radial-gradient(58% 44% at 50% 26%, rgba(234, 203, 119, .16) 0%, transparent 62%);
}
.bj-page-banner-inner { position: relative; z-index: 2; max-width: 860px; margin: 0 auto; padding: 0 24px; }
.bj-breadcrumb {
    display: flex; align-items: center; justify-content: center; flex-wrap: wrap;
    gap: 10px; margin-bottom: 22px; font-size: 14px; color: rgba(255, 255, 255, .72);
}
.bj-breadcrumb a { color: rgba(255, 255, 255, .72); }
.bj-breadcrumb a:hover { color: #EFE3BC; }
.bj-breadcrumb span { color: rgba(255, 255, 255, .85); }
.bj-breadcrumb .bc-sep { color: var(--bj-gold); }
.bj-page-h1 {
    font-size: 40px; font-weight: 700; line-height: 1.3; letter-spacing: 2px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, .25);
}
.bj-page-h1-sub {
    margin-top: 16px; font-size: 17px; font-weight: 300; line-height: 1.7;
    color: rgba(255, 255, 255, .82);
}
/* 内页中轴鎏金饰线（复用首页 hero-line 视觉，供 Banner 下方使用） */
.bj-page-gold-line { width: 72px; height: 2px; margin: 22px auto 0; background: linear-gradient(90deg, transparent, var(--bj-gold), transparent); }

@media (max-width: 768px) {
    .bj-page-banner { padding: 56px 0 46px; }
    .bj-page-h1 { font-size: 28px; }
    .bj-page-h1-sub { font-size: 15px; }
}

/* ============================================================
   AI 报价弹窗 / 浮动条 共用组件（站点通用 class，JS 依赖，视觉统一走 BJ 设计 token）
   ============================================================ */
.bj-float-bar-extra, .float-bar { display: flex; }
/* 浮动条：鎏金渐变胶囊 + 图标下带文字（常显） */
.float-bar {
    position: fixed; right: 18px; bottom: 90px; z-index: 150;
    flex-direction: column; gap: 8px; padding: 10px;
    background: var(--bj-gold-grad);
    border-radius: 18px;
    box-shadow: 0 14px 34px rgba(169, 134, 43, .38);
}
.float-bar-btn {
    position: relative; z-index: 1;
    width: 64px; padding: 9px 6px 8px; border-radius: 12px; border: none;
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
    color: #2B2100;
    background: rgba(255, 255, 255, .22);
    transition: var(--bj-transition);
}
.float-bar-btn:hover { background: rgba(255, 255, 255, .4); transform: translateY(-2px); }
.float-bar-btn .icon .icon-svg { width: 1.4em; height: 1.4em; }
/* 图标下方的文字常显 */
.float-bar-btn .label {
    position: static; transform: none; opacity: 1; visibility: visible;
    background: transparent; border: none; box-shadow: none; padding: 0;
    color: #2B2100; font-size: 12px; font-weight: 600; line-height: 1.2; white-space: nowrap;
}
/* 顶部电话按钮统一同款（不特意高亮） */
@media (max-width: 768px) {
    .float-bar {
        left: 0; right: 0; bottom: 0; top: auto; flex-direction: row;
        gap: 0; padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
        background: var(--bj-gold-grad);
        border-top: 1px solid rgba(255, 255, 255, .32);
        border-radius: 0;
        box-shadow: 0 -6px 20px rgba(169, 134, 43, .25); z-index: 151;
    }
    .float-bar-btn {
        position: static;
        flex: 1; width: auto; height: 50px; border-radius: var(--bj-radius);
        display: flex; align-items: center; justify-content: center; gap: 6px;
        font-size: 14px; font-weight: 600; color: #2B2100;
        background: transparent; box-shadow: none;
    }
    .float-bar-btn:hover { background: transparent; transform: none; }
    .float-bar-btn + .float-bar-btn { border-left: 1px solid rgba(255, 255, 255, .35); }
    .float-bar-btn .label {
        position: static; transform: none; opacity: 1; visibility: visible;
        background: transparent; border: none; box-shadow: none; padding: 0;
        color: inherit; white-space: normal;
    }
}

/* 弹窗（沿用通用类 modal-overlay / modal，JS 通过 .active 控制） */
.modal-overlay {
    position: fixed; inset: 0; z-index: 300;
    background: rgba(15, 22, 35, .45);
    display: flex; align-items: center; justify-content: center;
    padding: 20px; opacity: 0; visibility: hidden; transition: var(--bj-transition);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
    background: #fff; border-radius: 10px; width: 100%;
    max-height: calc(100vh - 40px);
    display: flex; flex-direction: column;
    overflow: hidden; transform: translateY(20px); transition: transform .3s ease;
    border: 1px solid var(--bj-border);
}
.modal-overlay.active .modal { transform: translateY(0); }
.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 22px; border-bottom: 1px solid var(--bj-border);
    flex-shrink: 0;
}
.modal-header h3 { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 700; color: var(--bj-text); }
.modal-header h3 .icon-svg { color: var(--bj-gold); }
.modal-close { width: 44px; height: 44px; border: none; background: transparent; font-size: 26px; color: var(--bj-text); }
.modal-body { padding: 24px 22px; overflow-y: auto; }
.phone-modal-body { padding: 30px 28px 26px; text-align: center; }
.phone-modal-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px; border-radius: 999px;
    background: var(--bj-primary-soft); color: var(--bj-primary);
    font-size: 13px; font-weight: 500; margin-bottom: 22px;
}
.phone-modal-badge .icon-svg { width: 1.1em; height: 1.1em; }
.phone-modal-number {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    font-size: 32px; font-weight: 700; color: var(--bj-primary); letter-spacing: 1px;
    text-decoration: none; margin-bottom: 10px;
}
.phone-modal-tip { font-size: 0.95rem; color: var(--bj-gray); margin-bottom: 22px; }
.phone-modal-hours {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    font-size: 0.88rem; color: var(--bj-gray); margin-bottom: 22px;
}
.phone-modal-hours .icon-svg { color: var(--bj-gold); }
.phone-modal-call { margin-top: 4px; }
.wechat-qrcode-wrap { display: grid; place-items: center; margin-bottom: 16px; }
.wechat-qrcode { width: 180px; height: 180px; object-fit: contain; border: 1px solid var(--bj-border); border-radius: var(--bj-radius); }
.qrcode-fallback { display: none; color: var(--bj-gray); font-size: 14px; padding: 20px; }
.wechat-qrcode-wrap.qrcode-placeholder .qrcode-fallback { display: block; }
/* 报价弹窗标题 */
.modal-quote-title { display: flex; align-items: center; gap: 10px; }
.modal-quote-icon {
    width: 40px; height: 40px; border-radius: 50%;
    display: grid; place-items: center; background: var(--bj-primary-soft); color: var(--bj-primary);
}
.modal-quote-title h3 { margin: 0; }
.modal-quote-title small { display: block; font-size: 12px; color: var(--bj-gray); font-weight: 300; }

/* 表单（JS 动态生成依赖这些通用类） */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 14px; color: var(--bj-gray); margin-bottom: 6px; font-weight: 400; }
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="number"],
.form-group select {
    width: 100%; height: 46px; padding: 0 12px;
    border: 1px solid var(--bj-border); border-radius: var(--bj-radius);
    font-size: 15px; font-family: inherit; background: #fff; color: var(--bj-text);
    transition: var(--bj-transition);
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--bj-primary); box-shadow: 0 0 0 3px var(--bj-primary-soft); }
.quote-params-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.quote-params-grid .full-width { grid-column: 1 / -1; }
.form-error { display: block; color: #D63A2F; font-size: 13px; margin-top: 6px; }
.number-input-wrap { position: relative; display: flex; align-items: center; }
.number-input-wrap input { padding-right: 46px; }
.number-unit { position: absolute; right: 12px; font-size: 13px; color: var(--bj-gray); pointer-events: none; }
.check-option {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 12px; border: 1px solid var(--bj-border); border-radius: var(--bj-radius);
    font-size: 14px; color: var(--bj-text); cursor: pointer;
}
.check-option input { accent-color: var(--bj-primary); }
.quote-tip { font-size: 12.5px; color: var(--bj-gray); margin-top: 14px; text-align: center; }
.modal-quote-submit { width: 100%; }

/* 通用按钮（JS 弹窗内引用 .btn / .btn-accent / .btn-primary 等，统一 BJ 视觉） */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 26px; border-radius: var(--bj-radius);
    font-size: 16px; font-weight: 500; line-height: 1; border: none;
    white-space: nowrap; transition: var(--bj-transition);
}
.btn-lg { padding: 15px 32px; font-size: 17px; }
.btn-block { width: 100%; }
.btn-primary { background: var(--bj-primary); color: #fff; }
.btn-primary:hover { background: var(--bj-primary-dark); transform: translateY(-2px); }
.btn-accent { background: var(--bj-gold-grad); color: #2B2100; }
.btn-accent:hover { background: var(--bj-gold-grad); filter: brightness(1.06); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--bj-primary); border: 1.5px solid var(--bj-primary); }
.btn-outline:hover { background: var(--bj-primary-soft); border-color: var(--bj-primary-dark); color: var(--bj-primary-dark); }
.btn-white { background: #fff; color: var(--bj-primary-dark); }
.btn-white:hover { background: var(--bj-bg-alt); transform: translateY(-2px); }

/* ============================================================
   无障碍：用户偏好减少动效时关闭动画
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .bj-hero-bg, .bj-hero-badge, .bj-hero-badge::before, .bj-hero-line,
    .bj-hero-title, .bj-hero-title .bj-hero-gold, .bj-hero-sub, .bj-hero-tag, .bj-hero-cta,
    .bj-hero .bj-btn-gold,
    .bj-hero-glow, .bj-hero-glow::before, .bj-hero-glow::after,
    .bj-btn-gold, .bj-btn-gold::after { animation: none !important; }
    [data-reveal] { opacity: 1 !important; transform: none !important; transition: none !important; }
    * { scroll-behavior: auto !important; }
}