/* ============================================================
   共生构造（珠海）设计有限公司 官网全局样式
   极简设计风格 · 黑白留白 · 响应式
   ============================================================ */
:root {
    --ink: #1a1a1a;
    --gray: #6b6b6b;
    --light: #f5f5f2;
    --line: #e3e3de;
    --accent: #8a6d3b;
    --serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
    --sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--sans);
    color: var(--ink);
    background: #fff;
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
section { position: relative; }

/* ---------- 顶部导航 ---------- */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
    transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.06); }
.header-inner {
    max-width: 1280px; margin: 0 auto; padding: 16px 24px;
    display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.logo { display: flex; flex-direction: column; align-items: center; gap: 3px; text-align: center; }
.logo-text {
    font-family: var(--serif); font-weight: 700; font-size: 22px;
    letter-spacing: 4px; line-height: 1.2;
}
.logo-sub { font-size: 11px; color: var(--gray); letter-spacing: 2px; }
.nav { display: flex; align-items: center; gap: 34px; }
.nav a {
    font-size: 15px; letter-spacing: 1px; position: relative;
    padding: 6px 0; color: var(--ink); transition: color .3s;
}
.nav a::after {
    content: ''; position: absolute; left: 0; bottom: 0; width: 0; height: 1px;
    background: var(--ink); transition: width .3s;
}
.nav a:hover::after, .nav a.active::after { width: 100%; }
.lang-switch {
    display: flex; border: 1px solid var(--line); border-radius: 3px; overflow: hidden;
}
.lang-switch button {
    border: none; background: transparent; padding: 4px 10px; font-size: 12px;
    cursor: pointer; color: var(--gray); transition: all .25s; font-family: var(--sans);
}
.lang-switch button.on { background: var(--ink); color: #fff; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; }
.menu-toggle span { width: 24px; height: 2px; background: var(--ink); }

/* 移动端导航 */
.mobile-nav {
    display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; z-index: 99;
    background: #fff; flex-direction: column; justify-content: center;
    padding: 40px; text-align: center;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
    font-family: var(--serif); font-size: 26px; padding: 16px 0;
    letter-spacing: 3px; color: var(--ink);
}

/* ---------- 首页 Hero ---------- */
.hero {
    padding: 180px 24px 90px; text-align: center;
    background: var(--light);
}
.hero-title {
    font-family: var(--serif); font-size: clamp(34px, 5vw, 62px);
    font-weight: 700; letter-spacing: 6px; line-height: 1.3;
}
.hero-title .accent { color: var(--accent); }
.hero-sub {
    margin-top: 26px; font-size: 17px; color: var(--gray); letter-spacing: 1px;
    max-width: 720px; margin-left: auto; margin-right: auto;
}
.hero-tags { margin-top: 40px; display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.hero-tags a {
    border: 1px solid var(--ink); padding: 9px 22px; border-radius: 30px;
    font-size: 14px; letter-spacing: 1px; transition: all .3s;
}
.hero-tags a:hover { background: var(--ink); color: #fff; }

/* 首页三段价值 */
.values { padding: 90px 0; }
.values-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 30px; }
.value-card { padding: 34px; border: 1px solid var(--line); transition: all .3s; }
.value-card:hover { border-color: var(--ink); transform: translateY(-4px); }
.value-card .num { font-family: var(--serif); font-size: 14px; color: var(--accent); letter-spacing: 2px; }
.value-card h3 { font-family: var(--serif); font-size: 22px; margin: 12px 0 10px; }
.value-card p { font-size: 14.5px; color: var(--gray); }

/* 团队头像 */
.team-avatar { width: 128px; height: 156px; margin: 0 auto 6px; border-radius: 4px; overflow: hidden; background: var(--light); }
.team-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; filter: grayscale(20%); transition: filter .3s, transform .4s; }
.team-card:hover .team-avatar img { filter: grayscale(0); transform: scale(1.04); }
.team-card h3 { margin-top: 8px; }

/* 专业刊物 */
.pub-grid { grid-template-columns: repeat(2,1fr); }
.pub-card { text-align: center; }
.pub-card .pub-img { aspect-ratio: 4/5; overflow: hidden; border: 1px solid var(--line); background: var(--light); }
.pub-card .pub-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s; }
.pub-card:hover .pub-img img { transform: scale(1.04); }
.pub-card h3 { font-family: var(--serif); font-size: 20px; margin: 18px 0 8px; }
.pub-card p { font-size: 14px; color: var(--gray); }

/* 项目网格 */
.section-head { text-align: center; margin-bottom: 50px; }
.section-head .en { font-size: 13px; letter-spacing: 4px; color: var(--accent); text-transform: uppercase; }
.section-head h2 { font-family: var(--serif); font-size: 36px; letter-spacing: 4px; margin-top: 8px; }
.section-head p { color: var(--gray); margin-top: 12px; font-size: 15px; }
.project-grid {
    display: grid; grid-template-columns: repeat(2,1fr); gap: 32px;
}
.project-item { position: relative; overflow: hidden; cursor: pointer; background: var(--light); }
.project-item .img-wrap { aspect-ratio: 4/3; overflow: hidden; position: relative; }
.project-item img {
    width: 100%; height: 100%; object-fit: cover;
    filter: grayscale(100%); transition: filter .5s, transform .6s;
}
.project-item:hover img { filter: grayscale(0); transform: scale(1.04); }
.project-item .pcap { text-align: center; background: #fff; padding: 18px 8px 4px; }
.project-item .pcap h3 { font-family: var(--serif); font-size: 19px; letter-spacing: 2px; color: var(--ink); }
.project-item .pcap .pmeta { font-size: 13px; color: var(--gray); margin-top: 6px; letter-spacing: 1px; }

/* 服务流程 */
.flow { background: var(--light); padding: 90px 0; }
.flow-steps { display: grid; grid-template-columns: repeat(7,1fr); gap: 0; position: relative; }
.flow-step { text-align: center; padding: 0 8px; position: relative; }
.flow-step .no { font-family: var(--serif); font-size: 34px; color: var(--accent); font-weight: 700; }
.flow-step h4 { font-size: 15px; margin: 10px 0 6px; letter-spacing: 1px; }
.flow-step p { font-size: 12.5px; color: var(--gray); line-height: 1.5; }
.flow-step::after {
    content: '→'; position: absolute; right: -10px; top: 20px; color: var(--line); font-size: 20px;
}
.flow-step:last-child::after { display: none; }

/* GEO 内容区 */
.geo-band { padding: 90px 0; }
.geo-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.geo-card { border: 1px solid var(--line); padding: 30px; display: block; transition: all .3s; }
.geo-card:hover { border-color: var(--ink); box-shadow: 0 8px 30px rgba(0,0,0,.06); }
.geo-card h3 { font-family: var(--serif); font-size: 19px; margin-bottom: 12px; }
.geo-card p { font-size: 14px; color: var(--gray); margin-bottom: 16px; }
.geo-card .more { font-size: 13px; color: var(--accent); letter-spacing: 1px; }

/* 关于品牌简介 */
.about-band { padding: 90px 0; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-band .img-side img { height: 480px; object-fit: cover; filter: grayscale(30%); }
.about-band h2 { font-family: var(--serif); font-size: 36px; letter-spacing: 4px; }
.about-band p { margin-top: 20px; color: var(--gray); font-size: 15.5px; }
.about-band .btn { display: inline-block; margin-top: 28px; border: 1px solid var(--ink); padding: 12px 34px; letter-spacing: 2px; font-size: 14px; transition: all .3s; }
.about-band .btn:hover { background: var(--ink); color: #fff; }

/* CTA */
.cta { background: var(--ink); color: #fff; text-align: center; padding: 80px 24px; }
.cta h2 { font-family: var(--serif); font-size: 34px; letter-spacing: 4px; }
.cta p { color: rgba(255,255,255,.7); margin: 16px 0 30px; }
.cta .btn { border: 1px solid #fff; color: #fff; padding: 13px 40px; display: inline-block; letter-spacing: 2px; transition: all .3s; }
.cta .btn:hover { background: #fff; color: var(--ink); }

/* ---------- 页脚 ---------- */
.site-footer { background: #111; color: #aaa; padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 18px; letter-spacing: 1px; }
.footer-grid a { display: block; font-size: 14px; color: #aaa; padding: 5px 0; transition: color .3s; }
.footer-grid a:hover { color: #fff; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 13.5px; margin-top: 14px; line-height: 1.8; }
.footer-contact div { font-size: 14px; padding: 5px 0; }
.footer-bottom {
    border-top: 1px solid #2a2a2a; margin-top: 40px; padding-top: 20px;
    text-align: center; font-size: 12.5px; color: #666;
}

/* ---------- 页面头部 ---------- */
.page-hero { padding: 150px 24px 70px; text-align: center; background: var(--light); }
.page-hero h1 { font-family: var(--serif); font-size: 40px; letter-spacing: 5px; }
.page-hero .en { color: var(--accent); letter-spacing: 3px; font-size: 13px; margin-top: 10px; }
.page-hero p { color: var(--gray); max-width: 640px; margin: 16px auto 0; }

/* 分类筛选 */
.filter-bar { display: flex; justify-content: center; gap: 14px; margin: 40px auto; flex-wrap: wrap; }
.filter-bar a {
    padding: 8px 22px; border: 1px solid var(--line); border-radius: 30px;
    font-size: 14px; transition: all .3s;
}
.filter-bar a:hover, .filter-bar a.active { border-color: var(--ink); background: var(--ink); color: #fff; }

/* 项目详情 */
.detail-hero { padding: 150px 24px 50px; }
.detail-hero h1 { font-family: var(--serif); font-size: 38px; letter-spacing: 4px; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 20px; margin: 24px 0; }
.detail-meta .m { border-left: 3px solid var(--accent); padding-left: 12px; }
.detail-meta .m .k { font-size: 12px; color: var(--gray); }
.detail-meta .m .v { font-size: 15px; margin-top: 2px; }
.detail-cover { width: 100%; margin: 30px 0; }
.detail-cover img { width: 100%; max-height: 620px; object-fit: cover; }
.detail-body { display: grid; grid-template-columns: 1fr 320px; gap: 50px; }
.detail-content h2 { font-family: var(--serif); font-size: 24px; margin: 30px 0 14px; letter-spacing: 2px; }
.detail-content p { color: #333; margin: 12px 0; font-size: 15.5px; }
.side-card { border: 1px solid var(--line); padding: 24px; position: sticky; top: 100px; }
.side-card h3 { font-family: var(--serif); font-size: 18px; margin-bottom: 14px; }
.side-card .hl { font-size: 14px; color: var(--gray); padding: 7px 0; border-bottom: 1px dashed var(--line); }
.side-card .cta-txt { margin-top: 16px; font-size: 14px; }
.gallery { margin-top: 40px; }
.gallery h2 { font-family: var(--serif); font-size: 24px; margin-bottom: 20px; letter-spacing: 2px; }
.gallery-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.gallery-grid img { width: 100%; height: 380px; object-fit: cover; }

/* 文章页 */
.article-wrap { max-width: 860px; margin: 0 auto; padding: 40px 24px 80px; }
.article-wrap h1 { font-family: var(--serif); font-size: 32px; letter-spacing: 3px; line-height: 1.4; }
.article-wrap .a-meta { color: var(--gray); font-size: 13px; margin: 16px 0 30px; }
.article-content h2 { font-family: var(--serif); font-size: 24px; margin: 34px 0 14px; letter-spacing: 1px; }
.article-content h3 { font-size: 19px; margin: 26px 0 10px; }
.article-content p { margin: 12px 0; color: #333; font-size: 16px; }
.article-content ul, .article-content ol { margin: 12px 0; padding-left: 24px; color: #333; }
.article-content li { margin: 6px 0; }
.article-content table { width: 100%; border-collapse: collapse; margin: 18px 0; }
.article-content th, .article-content td { border: 1px solid var(--line); padding: 10px 14px; text-align: left; font-size: 14.5px; }
.article-content th { background: var(--light); }
.article-nav { border-top: 1px solid var(--line); margin-top: 40px; padding-top: 24px; display: flex; gap: 10px; flex-wrap: wrap; }
.article-nav a { border: 1px solid var(--line); padding: 8px 16px; font-size: 13px; border-radius: 3px; transition: all .3s; }
.article-nav a:hover, .article-nav a.active { border-color: var(--ink); background: var(--ink); color: #fff; }

/* 联系我们 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; padding: 40px 0 80px; }
.contact-info .ci { padding: 20px 0; border-bottom: 1px solid var(--line); }
.contact-info .ci .k { font-size: 12.5px; color: var(--accent); letter-spacing: 2px; }
.contact-info .ci .v { font-size: 17px; margin-top: 6px; }
.contact-map { border: 1px solid var(--line); min-height: 380px; }
.contact-map iframe { width: 100%; height: 100%; border: none; min-height: 380px; }

/* 搜索 */
.search-box { max-width: 640px; margin: 30px auto 20px; display: flex; }
.search-box input { flex: 1; border: 1px solid var(--line); padding: 14px 20px; font-size: 15px; font-family: var(--sans); }
.search-box button { border: 1px solid var(--ink); background: var(--ink); color: #fff; padding: 0 26px; cursor: pointer; font-size: 15px; }

/* 404 */
.nf { text-align: center; padding: 160px 24px; }
.nf h1 { font-family: var(--serif); font-size: 80px; color: var(--line); }
.nf p { color: var(--gray); margin: 20px 0 30px; }
.nf a { border: 1px solid var(--ink); padding: 12px 34px; }

/* 语言隐藏逻辑 */
[data-lang] { display: none; }
html.lang-zh [data-lang="zh"] { display: block; }
html.lang-zh [data-lang="zh"].inline { display: inline; }
html.lang-tw [data-lang="tw"] { display: block; }
html.lang-tw [data-lang="tw"].inline { display: inline; }

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
    .header-inner { position: relative; padding: 14px 18px; gap: 8px; }
    .nav { gap: 18px; flex-wrap: wrap; justify-content: center; }
    .nav a { font-size: 14px; }
    .menu-toggle { display: none; }
    .mobile-nav { display: none !important; }
    .values-grid, .geo-cards { grid-template-columns: repeat(2,1fr); }
    .project-grid { grid-template-columns: repeat(2,1fr); }
    .flow-steps { grid-template-columns: repeat(4,1fr); row-gap: 30px; }
    .flow-step::after { display: none; }
    .about-band { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .detail-body { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .nav { gap: 14px; flex-wrap: wrap; justify-content: center; }
    .nav a { font-size: 13px; letter-spacing: 0; padding: 4px 0; }
    .menu-toggle { display: none; }
    .mobile-nav { display: none !important; }
    .project-grid { grid-template-columns: 1fr; }
    .values-grid, .geo-cards { grid-template-columns: 1fr; }
    .flow-steps { grid-template-columns: repeat(2,1fr); }
    .contact-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .detail-meta { flex-direction: column; gap: 12px; }
}

/* ============================================================
   首页滚动 Banner（高级设计感）
   ============================================================ */
.hero-banner {
    position: relative; height: 88vh; min-height: 560px; max-height: 900px;
    overflow: hidden; background: #0e0e0e;
    display: flex; align-items: center; justify-content: center;
}
.banner-slides { position: absolute; inset: 0; }
.banner-slide {
    position: absolute; inset: 0; opacity: 0; transition: opacity 1.6s ease;
    background-size: cover; background-position: center; transform: scale(1.04);
    will-change: opacity;
}
.banner-slide.active { opacity: 1; }
.banner-veil {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10,10,10,.55) 0%, rgba(10,10,10,.35) 40%, rgba(10,10,10,.7) 100%);
}
.banner-grain {
    position: absolute; inset: 0; pointer-events: none; opacity: .5;
    background-image: radial-gradient(rgba(255,255,255,.03) 1px, transparent 1px);
    background-size: 3px 3px;
}
.hero-content {
    position: relative; z-index: 2; text-align: center; color: #fff;
    padding: 0 24px;
}
.hero-kicker {
    font-size: 13px; letter-spacing: 6px; color: rgba(255,255,255,.72);
    text-transform: uppercase; margin-bottom: 22px;
}
.hero-banner .hero-title {
    color: #fff; text-shadow: 0 2px 24px rgba(0,0,0,.35);
}
.hero-banner .hero-title .accent { color: #d9c08c; }
.hero-banner .hero-sub { color: rgba(255,255,255,.85); text-shadow: 0 1px 8px rgba(0,0,0,.3); }
.hero-banner .hero-tags { margin-top: 44px; }
.hero-banner .hero-tags a {
    border-color: rgba(255,255,255,.6); color: #fff; background: rgba(0,0,0,.15);
    backdrop-filter: blur(4px);
}
.hero-banner .hero-tags a:hover { background: #fff; color: #111; border-color: #fff; }
/* 指示点 */
.banner-dots {
    position: absolute; bottom: 40px; left: 0; right: 0; z-index: 3;
    display: flex; justify-content: center; gap: 12px;
}
.banner-dots .dot {
    width: 26px; height: 2px; background: rgba(255,255,255,.35); cursor: pointer;
    transition: background .3s, width .3s; border-radius: 2px;
}
.banner-dots .dot.on { background: #fff; width: 40px; }
/* 滚动提示 */
.scroll-hint {
    position: absolute; bottom: 32px; right: 34px; z-index: 3; width: 22px; height: 36px;
    border: 1px solid rgba(255,255,255,.5); border-radius: 12px; display: flex;
    justify-content: center; padding-top: 6px;
}
.scroll-hint span {
    width: 3px; height: 8px; background: rgba(255,255,255,.75); border-radius: 2px;
    animation: scrollHint 1.6s ease-in-out infinite;
}
@keyframes scrollHint { 0% { opacity: 1; transform: translateY(0); } 70% { opacity: 0; transform: translateY(14px); } 100% { opacity: 0; } }

/* ============================================================
   首页全链条服务
   ============================================================ */
.section-kicker {
    font-size: 13px; letter-spacing: 4px; color: var(--accent);
    text-transform: uppercase; margin-bottom: 10px;
}
.chain-grid {
    display: grid; grid-template-columns: repeat(4,1fr); gap: 20px;
}
.chain-item {
    border: 1px solid var(--line); padding: 26px; background: #fff;
    transition: all .3s; position: relative;
}
.chain-item:hover { transform: translateY(-4px); border-color: var(--ink); box-shadow: 0 10px 30px rgba(0,0,0,.06); }
.chain-item .cn { font-family: var(--serif); font-size: 13px; color: var(--accent); letter-spacing: 2px; }
.chain-item h3 { font-family: var(--serif); font-size: 19px; margin: 10px 0 8px; }
.chain-item p { font-size: 13.5px; color: var(--gray); line-height: 1.6; }

/* ============================================================
   设计流程页
   ============================================================ */
/* 流程总览：圆形徽章流程链 */
.proc-overview {
    display: grid; grid-template-columns: repeat(4,1fr); gap: 14px;
}
.proc-item {
    display: flex; flex-direction: column; align-items: center; gap: 12px;
    padding: 24px 12px; border-radius: 14px; background: var(--light);
    border: 1px solid transparent; transition: all .3s;
}
.proc-item:hover { background: #fff; border-color: var(--line); transform: translateY(-4px); box-shadow: 0 12px 30px rgba(26,26,26,.06); }
.proc-item .pno {
    width: 52px; height: 52px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--serif); font-size: 22px; font-weight: 700; color: var(--accent);
    border: 1px solid var(--accent); transition: all .3s;
}
.proc-item:hover .pno { background: var(--accent); color: #fff; }
.proc-item p { font-size: 14px; letter-spacing: 1px; color: var(--ink); }

/* 12步详解：交替图文卡片 */
.proc-list { max-width: 1080px; margin: 0 auto; display: flex; flex-direction: column; gap: 28px; }
.proc-row {
    position: relative; display: grid; grid-template-columns: 1fr 340px;
    gap: 44px; align-items: center;
    background: #fff; border: 1px solid var(--line); border-radius: 18px;
    padding: 40px 44px; transition: box-shadow .3s, transform .3s;
}
.proc-row:hover { box-shadow: 0 16px 40px rgba(26,26,26,.07); transform: translateY(-2px); }
.proc-row.has-img { grid-template-columns: 1fr 340px; }
.proc-index {
    position: absolute; top: -23px; left: 36px;
    width: 46px; height: 46px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--serif); font-size: 20px; font-weight: 700; color: var(--accent);
    background: #fff; border: 1px solid var(--line); box-shadow: 0 6px 18px rgba(26,26,26,.08);
}
.proc-body { grid-column: 1; }
.proc-body h3 { font-family: var(--serif); font-size: 24px; letter-spacing: 2px; margin-bottom: 10px; }
.proc-body p { color: var(--gray); font-size: 15px; line-height: 1.8; }
.proc-img { grid-column: 2; width: 100%; aspect-ratio: 4/3; border-radius: 12px; overflow: hidden; }
.proc-img img { width: 100%; height: 100%; object-fit: cover; display: block; filter: grayscale(8%); transition: transform .5s; }
.proc-row:hover .proc-img img { transform: scale(1.06); }
/* 所有步骤统一：文字在左、图片在右，同一行垂直居中（与首行 A 保持一致） */

/* ============================================================
   收费标准页
   ============================================================ */
.price-table-wrap { max-width: 860px; margin: 0 auto; overflow-x: auto; }
.price-table { width: 100%; border-collapse: collapse; background: #fff; }
.price-table th {
    font-family: var(--serif); background: var(--ink); color: #fff;
    padding: 15px 18px; font-size: 15px; letter-spacing: 2px; text-align: center;
}
.price-table td {
    border-bottom: 1px solid var(--line); padding: 16px 18px;
    text-align: center; font-size: 15px;
}
.price-table tbody tr { transition: background .25s; }
.price-table tbody tr:hover { background: var(--light); }
.price-table .price-num {
    font-family: var(--serif); font-weight: 700; color: var(--accent); font-size: 17px;
}
.price-table td:first-child { text-align: left; font-weight: 600; }
.price-note {
    max-width: 860px; margin: 22px auto 0; text-align: center;
    color: var(--gray); font-size: 14px;
}
/* 面积计算展示 */
.price-area { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: 960px; margin: 44px auto 0; align-items: center; }
.price-area-img { overflow: hidden; border: 1px solid var(--line); background: var(--light); }
.price-area-img img { width: 100%; height: auto; display: block; }
.price-area-txt h3 { font-family: var(--serif); font-size: 24px; letter-spacing: 2px; margin-bottom: 18px; }
.price-area-txt ul { list-style: none; padding: 0; }
.price-area-txt ul li { padding: 10px 0 10px 22px; border-left: 2px solid var(--accent); margin-bottom: 10px; color: #333; font-size: 15px; line-height: 1.6; }
.price-area-txt ul li strong { color: var(--ink); }
.price-area-txt .price-note { max-width: 100%; text-align: left; margin: 14px 0 0; }
.coop-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.coop-card {
    background: #fff; border: 1px solid var(--line); padding: 34px;
    display: flex; flex-direction: column; transition: all .3s; position: relative;
}
.coop-card:hover { transform: translateY(-5px); box-shadow: 0 14px 40px rgba(0,0,0,.08); border-color: var(--ink); }
.coop-no {
    font-family: var(--serif); font-size: 15px; letter-spacing: 2px; color: #fff;
    background: var(--accent); display: inline-block; padding: 4px 14px; border-radius: 2px;
    align-self: flex-start;
}
.coop-card h3 { font-family: var(--serif); font-size: 24px; margin: 18px 0 12px; }
.coop-card p { color: var(--gray); font-size: 14.5px; flex: 1; }
.coop-tag {
    margin-top: 20px; font-size: 12.5px; color: var(--accent);
    border-top: 1px dashed var(--line); padding-top: 14px; letter-spacing: .5px;
}
.coop-note {
    max-width: 860px; margin: 30px auto 0; text-align: center;
    color: var(--gray); font-size: 14px;
}
.pay-steps {
    display: grid; grid-template-columns: repeat(4,1fr); gap: 22px;
}
.pay-step {
    border: 1px solid var(--line); padding: 30px 22px; text-align: center; background: #fff;
    transition: all .3s;
}
.pay-step:hover { border-color: var(--ink); transform: translateY(-4px); }
.pay-pct {
    font-family: var(--serif); font-size: 40px; font-weight: 700; color: var(--accent);
    line-height: 1;
}
.pay-step h4 { font-family: var(--serif); font-size: 18px; margin: 14px 0 8px; letter-spacing: 2px; }
.pay-step p { font-size: 13px; color: var(--gray); line-height: 1.6; min-height: 66px; }
.pay-time {
    margin-top: 12px; font-size: 12px; color: var(--accent);
    border-top: 1px dashed var(--line); padding-top: 10px; letter-spacing: 1px;
}

/* 新页响应式 */
@media (max-width: 992px) {
    .chain-grid { grid-template-columns: repeat(2,1fr); }
    .proc-overview { grid-template-columns: repeat(3,1fr); }
    .proc-row { grid-template-columns: 1fr 280px; gap: 30px; padding: 32px 30px; }
    .proc-row.has-img { grid-template-columns: 1fr 280px; }
    .coop-grid, .pay-steps { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
    .hero-banner { height: 100vh; min-height: 520px; }
    .chain-grid { grid-template-columns: 1fr; }
    .proc-overview { grid-template-columns: repeat(2,1fr); }
    .proc-row { grid-template-columns: 1fr; gap: 18px; padding: 26px 22px; }
    .proc-row.has-img { grid-template-columns: 1fr; }
    .proc-row .proc-body, .proc-row .proc-img { order: initial; }
    .proc-img { display: block; }
    .proc-index { position: static; width: 40px; height: 40px; font-size: 17px; margin-bottom: 4px; }
    .coop-grid, .pay-steps { grid-template-columns: 1fr; }
    .price-area { grid-template-columns: 1fr; gap: 24px; }
    .scroll-hint { display: none; }
}

/* ============================================================
   首页极简（工一风格：白底、定格图、从上到下）
   ============================================================ */
html { scroll-behavior: smooth; }
/* 首屏：参考站式自然居中（logo → 导航 → 品牌字 → BANNER），导航滚动吸顶 */
.home-hero {
    display: flex; flex-direction: column; align-items: center; text-align: center;
    padding: 76px 5vw 0;
}
.home-logo { font-family: var(--serif); font-size: 24px; letter-spacing: 8px; color: var(--ink); line-height: 1.3; text-align: center; }
.home-logo span { display: block; font-family: inherit; font-size: 10px; letter-spacing: 4px; color: var(--gray); margin-top: 8px; }
.home-brand-name { margin: 56px auto 0; font-size: 16px; letter-spacing: 3px; color: #8e8e8e; text-align: center; }
.home-menu {
    position: sticky; top: 0; z-index: 50;
    display: flex; align-items: center; justify-content: center; gap: 42px;
    width: 100%; margin-top: 88px; padding: 18px 0;
    background: rgba(255,255,255,.96); backdrop-filter: blur(8px);
}
.home-menu a { font-size: 13px; letter-spacing: 2px; color: #303133; transition: color .3s; }
.home-menu a:hover { color: var(--accent); }
.home-menu .lang-switch { display: flex; gap: 0; border: 1px solid #c9c9c9; }
.home-menu .lang-switch button {
    border: none; background: #fff; padding: 5px 13px;
    font-size: 12px; cursor: pointer; color: #303133;
}
.home-menu .lang-switch button:hover { color: #000; }

/* ===== 工一版式：品牌主视觉 / 理念 / 关于 / 获奖 ===== */
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.home-brand { padding: 64px 0 0; text-align: center; }
.home-h1 { font-family: var(--serif); font-size: clamp(26px, 4.4vw, 40px); letter-spacing: 4px; line-height: 1.9; color: var(--ink); }
.home-brand-sub { margin-top: 16px; font-size: 15px; letter-spacing: 2px; color: var(--gray); }
.about-sub { display: block; margin-top: 22px; }
.about-sub .about-tag { display: block; font-size: 12px; letter-spacing: 4px; color: #aaa; text-transform: uppercase; margin-bottom: 8px; }
.about-sub { font-size: 16px; letter-spacing: 2px; color: #8e8e8e; }
/* 通栏容器：BANNER、理念、关于同宽（对齐参考站 1200 容器居中） */
.home-prose { max-width: 1200px; margin: 0 auto; padding: 0; text-align: left; }
.home-trio { margin: 56px auto 0; max-width: 1200px; padding: 0; }
.home-trio img { width: 100%; height: auto; display: block; }
.home-block { padding: 22px 0; }
#philosophy { padding-top: 36px; }
.home-mini-title { font-size: 16px; font-weight: 400; color: #8e8e8e; letter-spacing: 1px; margin-bottom: 16px; }
.about-title .about-tag { display: block; font-size: 12px; font-weight: 400; letter-spacing: 3px; color: #aaa; text-transform: uppercase; margin-bottom: 8px; }
.home-block p { color: #8e8e8e; font-size: 16px; line-height: 28px; margin-bottom: 14px; letter-spacing: .3px; }
.home-award-list { list-style: none; }
.home-award-list li { position: relative; padding: 11px 0 11px 26px; color: var(--gray); font-size: 15px; letter-spacing: .5px; line-height: 1.9; }
.home-award-list li::before { content: '·'; position: absolute; left: 8px; top: 11px; color: var(--accent); font-weight: 700; font-size: 20px; line-height: 1; }
.home-award-list li em { font-style: normal; color: var(--accent); }

.home-section { padding: 100px 0; scroll-margin-top: 64px; }
.home-section.alt { background: var(--light); }
/* 案例精选：与上方「曾荣获」同一白色背景，紧贴其列表末项下方 */
#works { background: #fff; padding: 6px 0 40px; }
.home-sec-head { text-align: center; margin-bottom: 56px; }
.home-sec-head .en { font-size: 13px; letter-spacing: 5px; color: var(--accent); }
.home-sec-head h2 { font-family: var(--serif); font-size: 32px; letter-spacing: 5px; margin-top: 10px; }

.home-about { display: grid; grid-template-columns: 1fr 1.15fr; gap: 60px; align-items: center; max-width: 1100px; margin: 0 auto; }
.home-about-img img { width: 100%; aspect-ratio: 4/5; object-fit: cover; display: block; filter: grayscale(15%); }
.home-about-txt p { color: var(--gray); font-size: 15.5px; line-height: 2; margin-bottom: 18px; }
.home-link { display: inline-block; margin-top: 8px; font-size: 14px; letter-spacing: 2px; color: var(--accent); border-bottom: 1px solid var(--accent); padding-bottom: 3px; }

.home-projects { max-width: 1080px; margin: 0 auto; }
.home-pcap { text-align: center; padding: 18px 8px 6px; background: #fff; }
.home-pcap h3 { font-family: var(--serif); font-size: 19px; letter-spacing: 2px; color: var(--ink); }
.home-pcap .meta { font-size: 13px; color: var(--gray); margin-top: 6px; letter-spacing: 1px; }
.home-projects .project-item .overlay { display: none; }

.home-flow { display: grid; grid-template-columns: repeat(7,1fr); gap: 18px; max-width: 1100px; margin: 0 auto; }
.home-flow-item { text-align: center; padding: 26px 12px; border: 1px solid var(--line); background: #fff; }
.home-flow-item .no { font-family: var(--serif); font-size: 26px; color: var(--accent); }
.home-flow-item h4 { font-size: 15px; margin: 12px 0 6px; letter-spacing: 1px; }
.home-flow-item p { font-size: 12.5px; color: var(--gray); line-height: 1.6; }

.home-contact { max-width: 760px; margin: 0 auto; }
.hc-row { display: flex; justify-content: space-between; gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.hc-row span { color: var(--gray); letter-spacing: 1px; flex-shrink: 0; }
.hc-row strong { color: var(--ink); text-align: right; font-weight: 600; }
.home-contact-note { text-align: center; color: var(--gray); margin-top: 28px; font-size: 14px; }

/* 案例精选（参考站作品集横向轮播：一排图左右滑动，点击放大） */
.works-carousel { position: relative; max-width: 1200px; margin: 0 auto; }
.works-track { display: flex; gap: 22px; overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth; padding: 6px 2px 14px; scrollbar-width: none; }
.works-track::-webkit-scrollbar { display: none; }
.work-item { flex: 0 0 57px; margin: 0; scroll-snap-align: start; }
.work-img { position: relative; aspect-ratio: 1; overflow: hidden; background: #e8e8e8; }
.work-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .6s ease, filter .5s ease; }
.work-item:hover .work-img img { transform: scale(1.04); filter: grayscale(1) brightness(.9); }
.work-cap { text-align: center; font-size: 11px; letter-spacing: .5px; color: var(--gray); padding-top: 8px; }
.wc-prev, .wc-next {
    position: absolute; top: 44%; transform: translateY(-50%); z-index: 5;
    width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line);
    background: #fff; color: var(--ink); font-size: 20px; line-height: 1; cursor: pointer;
    box-shadow: 0 2px 10px rgba(0,0,0,.08); transition: all .25s;
}
.wc-prev:hover, .wc-next:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.wc-prev { left: -18px; }
.wc-next { right: -18px; }

/* 案例放大灯箱（点击图片放大，同参考站） */
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,.9); display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity .3s ease; }
.lightbox.open { opacity: 1; visibility: visible; }
.lb-stage { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; padding: 4vh 8vw; }
.lb-img { max-width: 100%; max-height: 100%; object-fit: contain; box-shadow: 0 8px 50px rgba(0,0,0,.6); }
.lb-close { position: absolute; top: 16px; right: 20px; font-size: 40px; line-height: 1; color: #fff; background: none; border: none; cursor: pointer; z-index: 3; opacity: .8; }
.lb-close:hover { opacity: 1; }
.lb-nav { position: absolute; top: 50%; transform: translateY(-50%); font-size: 46px; line-height: 1; color: #fff; background: none; border: none; cursor: pointer; padding: 12px 20px; z-index: 3; opacity: .6; }
.lb-nav:hover { opacity: 1; }
.lb-prev { left: 10px; }
.lb-next { right: 10px; }

/* 获奖徽章墙（不分年份，网格排列） */
.award-wall { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; max-width: 1080px; margin: 0 auto; }
.award-badge {
    border: 1px solid var(--line); background: #fff; padding: 30px 18px; text-align: center;
    min-height: 118px; display: flex; flex-direction: column; justify-content: center; transition: all .3s;
}
.award-badge:hover { border-color: var(--ink); transform: translateY(-3px); }
.award-name { font-family: var(--serif); font-size: 15.5px; letter-spacing: 1px; color: var(--ink); line-height: 1.6; }
.award-cat { font-size: 12.5px; color: var(--accent); margin-top: 8px; letter-spacing: 1px; }

@media (max-width: 992px) {
    .home-trio { margin-top: 40px; }
    .home-block { padding: 22px 0; }
    .home-flow { grid-template-columns: repeat(3,1fr); }
    .award-wall { grid-template-columns: repeat(2,1fr); }
    .works-track { gap: 16px; }
    .work-item { flex-basis: 50px; }
}
@media (max-width: 640px) {
    .home-hero { padding: 48px 5vw 0; }
    .home-menu { gap: 16px; flex-wrap: wrap; justify-content: center; margin-top: 48px; padding: 14px 0; }
    .home-brand-name { margin: 32px auto 0; }
    .home-block { padding: 22px 0; }
    .home-trio { margin-top: 32px; }
    .home-flow { grid-template-columns: repeat(2,1fr); }
    .works-track { gap: 12px; }
    .work-item { flex-basis: 13vw; }
    .wc-prev { left: -8px; }
    .wc-next { right: -8px; }
    .hc-row { flex-direction: column; gap: 4px; }
    .hc-row strong { text-align: left; }
}