/* ===========================================================
   四川冠碟建筑工程有限公司 - 官方网站样式
   主题色：深蓝 #014fa2  / 橙色点缀 #f08300  / 工程灰 #555
   =========================================================== */

/* ---------- CSS 变量 ---------- */
:root {
    --primary: #014fa2;
    --primary-dark: #013670;
    --primary-light: #1d6bc7;
    --primary-50: #e8f0fb;
    --primary-100: #d3e2f6;

    --accent: #f08300;
    --accent-dark: #c66a00;
    --accent-50: #fff3e3;

    --gray-900: #1f2329;
    --gray-800: #2c3036;
    --gray-700: #4a4f55;
    --gray-600: #6e6e6e;
    --gray-500: #8a8d92;
    --gray-400: #aaa;
    --gray-300: #d0d0d0;
    --gray-200: #e1e1e1;
    --gray-100: #f0f2f5;
    --gray-50:  #f5f7fa;
    --white: #ffffff;
    --bg: #f7f9fc;

    --danger: #d83a3a;
    --success: #28a745;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .06);
    --shadow:    0 4px 16px rgba(0, 0, 0, .08);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, .12);

    --radius-sm: 4px;
    --radius:    8px;
    --radius-lg: 14px;

    --container: 1240px;
    --header-h:  108px;
    --nav-h:     54px;

    --trs: .25s cubic-bezier(.4,0,.2,1);

    --font-cn: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", "Noto Sans CJK SC", sans-serif;
    --font-num: "DIN Alternate", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-cn);
    font-size: 14px;
    line-height: 1.7;
    color: var(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; height: auto; vertical-align: middle; }
a { color: var(--gray-800); text-decoration: none; transition: color var(--trs); }
a:hover { color: var(--primary); }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 600; color: var(--gray-900); line-height: 1.35; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
input, textarea, select { font-family: inherit; font-size: 14px; }
table { border-collapse: collapse; width: 100%; }

/* ---------- Layout ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.row { display: flex; flex-wrap: wrap; margin: 0 -12px; }
.col { padding: 0 12px; }
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; } .mt-4 { margin-top: 16px; } .mt-5 { margin-top: 24px; } .mt-6 { margin-top: 32px; }
.mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 12px; } .mb-4 { margin-bottom: 16px; } .mb-5 { margin-bottom: 24px; }

/* ---------- Section Header (装饰式分节标题) ---------- */
.section { padding: 64px 0; }
.section--gray { background: var(--bg); }
.section--dark { background: var(--primary-dark); color: var(--white); }

.sec-head { text-align: center; margin-bottom: 40px; }
.sec-head .sec-en {
    display: inline-block;
    color: var(--accent);
    font-size: 13px;
    letter-spacing: 4px;
    font-weight: 500;
    margin-bottom: 10px;
    text-transform: uppercase;
}
.sec-head .sec-cn {
    font-size: 30px;
    color: var(--gray-900);
    font-weight: 700;
    position: relative;
    padding: 0 24px;
    display: inline-block;
}
.sec-head .sec-cn::before,
.sec-head .sec-cn::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 30px;
    height: 2px;
    background: var(--primary);
}
.sec-head .sec-cn::before { left: -30px; }
.sec-head .sec-cn::after  { right: -30px; }
.sec-head .sec-desc {
    color: var(--gray-600);
    margin-top: 14px;
    font-size: 14px;
}
.section--dark .sec-head .sec-cn { color: var(--white); }
.section--dark .sec-head .sec-cn::before,
.section--dark .sec-head .sec-cn::after { background: var(--accent); }
.section--dark .sec-head .sec-en { color: #ffc899; }

/* 横向栏目块（多列区块） */
.block-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 2px solid var(--primary);
    padding-bottom: 10px;
    margin-bottom: 24px;
}
.block-head .title {
    display: flex;
    align-items: baseline;
    gap: 14px;
}
.block-head .title h3 {
    font-size: 22px;
    color: var(--primary);
    font-weight: 700;
}
.block-head .title small {
    color: var(--gray-500);
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}
.block-head .more {
    color: var(--gray-600);
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.block-head .more:hover { color: var(--accent); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all var(--trs);
    border: 1px solid transparent;
    cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); }
.btn-accent  { background: var(--accent); color: #fff; }
.btn-accent:hover  { background: var(--accent-dark); color: #fff; transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-white   { background: #fff; color: var(--primary); }
.btn-white:hover { background: var(--accent); color: #fff; }
.btn-lg { padding: 14px 36px; font-size: 15px; }

/* ---------- Top Bar (顶部信息条) ---------- */
.topbar {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary));
    color: rgba(255, 255, 255, .85);
    font-size: 12px;
    padding: 7px 0;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; }
.topbar .topbar-welcome b { color: #ffd699; font-weight: 600; }
.topbar .topbar-meta { display: flex; gap: 22px; }
.topbar .topbar-meta a { color: rgba(255, 255, 255, .85); }
.topbar .topbar-meta a:hover { color: #fff; }

/* ---------- Header (Logo + 名称) ---------- */
.header {
    background: #fff;
    padding: 18px 0;
    border-bottom: 1px solid var(--gray-200);
}
.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.header .brand { display: flex; align-items: center; gap: 18px; }
.header .brand-logo {
    height: 72px;
    width: 72px;
    background: url('img/配图1.png') no-repeat center / contain;
    flex-shrink: 0;
}
.header .brand-text h1 {
    font-size: 26px;
    color: var(--primary);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 6px;
}
.header .brand-text .slogan {
    color: var(--gray-600);
    font-size: 13px;
    letter-spacing: 2px;
}
.header .brand-text .slogan b { color: var(--accent); font-weight: 600; }
.header .header-contact {
    text-align: right;
    color: var(--gray-700);
}
.header .header-contact .label {
    display: block;
    font-size: 12px;
    color: var(--gray-500);
    letter-spacing: 1px;
}
.header .header-contact .phone {
    font-family: var(--font-num);
    font-size: 28px;
    color: var(--accent);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: 1px;
}

/* ---------- Navigation (主导航) ---------- */
.navbar {
    background: var(--primary);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px rgba(0,0,0,.12);
}
.navbar .container {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
}
.nav-list {
    display: flex;
    align-items: stretch;
}
.nav-list > li {
    position: relative;
}
.nav-list > li > a {
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: var(--nav-h);
    color: rgba(255, 255, 255, .92);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 1px;
    transition: background var(--trs), color var(--trs);
    position: relative;
}
.nav-list > li > a::after {
    content: "";
    position: absolute;
    left: 50%;
    right: 50%;
    bottom: 8px;
    height: 2px;
    background: var(--accent);
    transition: left var(--trs), right var(--trs);
}
.nav-list > li:hover > a,
.nav-list > li.active > a {
    color: #fff;
    background: rgba(0,0,0,.18);
}
.nav-list > li:hover > a::after,
.nav-list > li.active > a::after {
    left: 24px;
    right: 24px;
}
.nav-cta {
    display: flex;
    align-items: center;
    gap: 8px;
}
.lang-btn {
    display: inline-flex;
    align-items: center;
    height: 34px;
    padding: 0 14px;
    border: 1px solid rgba(255,255,255,.55);
    border-radius: 18px;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
    transition: background .2s, color .2s, border-color .2s;
}
.lang-btn:hover {
    background: #fff;
    color: var(--primary-dark);
    border-color: #fff;
}
.nav-search {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,.15);
    border-radius: 18px;
    padding: 4px 12px;
    height: 34px;
}
.nav-search input {
    background: transparent;
    border: 0;
    outline: 0;
    color: #fff;
    width: 140px;
    font-size: 12px;
}
.nav-search input::placeholder { color: rgba(255,255,255,.7); }
.nav-search button {
    color: #fff;
    padding: 0 4px;
    opacity: .8;
}
.nav-search button:hover { opacity: 1; }
.nav-mobile {
    display: none;
    color: #fff;
    font-size: 22px;
    padding: 0 20px;
    align-items: center;
}

/* ---------- Banner / Hero ---------- */
.hero {
    position: relative;
    height: 560px;
    overflow: hidden;
    background: var(--gray-900);
}
.hero-slider { position: absolute; inset: 0; }
.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg,
        rgba(1, 30, 65, .85) 0%,
        rgba(1, 30, 65, .55) 50%,
        rgba(1, 30, 65, .25) 100%);
}
.hero-content {
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 20px;
}
.hero-content .tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    padding: 6px 16px;
    border-radius: 2px;
    font-size: 13px;
    letter-spacing: 2px;
    margin-bottom: 20px;
    width: fit-content;
}
.hero-content .title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 14px;
    text-shadow: 0 2px 12px rgba(0,0,0,.35);
}
.hero-content .title b { color: var(--accent); }
.hero-content .subtitle {
    font-size: 17px;
    color: rgba(255,255,255,.92);
    margin-bottom: 28px;
    max-width: 600px;
    line-height: 1.7;
}
.hero-content .actions {
    display: flex;
    gap: 14px;
}
.hero-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
}
.hero-dots span {
    width: 28px;
    height: 4px;
    background: rgba(255,255,255,.4);
    cursor: pointer;
    transition: background var(--trs);
}
.hero-dots span.active { background: var(--accent); }

/* ---------- Page Hero (子页头图) ---------- */
.page-hero {
    height: 280px;
    position: relative;
    background: linear-gradient(120deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
    color: #fff;
    overflow: hidden;
}
.page-hero::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: 32px 32px;
}
.page-hero::after {
    content: "";
    position: absolute;
    right: -10%;
    top: -50%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(240,131,0,.25) 0%, transparent 60%);
}
.page-hero .container {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.page-hero h1 {
    color: #fff;
    font-size: 38px;
    font-weight: 700;
    margin-bottom: 8px;
}
.page-hero .en-name {
    color: rgba(255,255,255,.65);
    font-size: 13px;
    letter-spacing: 5px;
    margin-bottom: 16px;
    text-transform: uppercase;
}
.page-hero .accent-line {
    width: 56px;
    height: 4px;
    background: var(--accent);
    margin-bottom: 16px;
}
.page-hero .sub {
    color: rgba(255,255,255,.85);
    font-size: 14px;
    max-width: 720px;
    line-height: 1.8;
}
.breadcrumb {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 0;
    font-size: 13px;
    color: var(--gray-600);
}
.breadcrumb a { color: var(--gray-700); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { margin: 0 8px; color: var(--gray-400); }
.breadcrumb .here { color: var(--primary); font-weight: 500; }

/* ---------- Stats (核心数据) ---------- */
.stats {
    background: #fff;
    padding: 48px 0;
    border-bottom: 1px solid var(--gray-200);
}
.stats-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0;
}
.stat-item {
    text-align: center;
    padding: 16px 12px;
    position: relative;
    border-right: 1px solid var(--gray-200);
}
.stat-item:last-child { border-right: 0; }
.stat-item .num {
    font-family: var(--font-num);
    font-size: 38px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.1;
}
.stat-item .num small {
    font-size: 18px;
    color: var(--accent);
    margin-left: 4px;
    font-weight: 600;
}
.stat-item .label {
    color: var(--gray-600);
    font-size: 13px;
    margin-top: 6px;
}

/* ---------- Card (通用卡片) ---------- */
.card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--trs), box-shadow var(--trs);
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.card-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    background: var(--gray-100);
}
.card-body { padding: 20px; }
.card-title {
    font-size: 18px;
    color: var(--gray-900);
    margin-bottom: 10px;
    font-weight: 600;
}
.card-text { color: var(--gray-600); font-size: 13px; line-height: 1.7; }

/* ---------- Project Card (项目卡片) ---------- */
.proj-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--trs);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--gray-200);
}
.proj-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.proj-card .pc-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.proj-card .pc-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .8s ease;
}
.proj-card:hover .pc-cover img { transform: scale(1.06); }
.proj-card .pc-cover .badge {
    position: absolute;
    top: 14px;
    left: 0;
    background: var(--accent);
    color: #fff;
    padding: 5px 14px;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 1px;
    box-shadow: 0 2px 6px rgba(240,131,0,.4);
}
.proj-card .pc-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.proj-card .pc-title {
    font-size: 17px;
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}
.proj-card .pc-amount {
    color: var(--accent);
    font-size: 22px;
    font-weight: 700;
    font-family: var(--font-num);
    margin-bottom: 10px;
}
.proj-card .pc-amount small { font-size: 13px; color: var(--gray-500); font-weight: normal; margin-left: 4px; }
.proj-card .pc-desc {
    color: var(--gray-600);
    font-size: 13px;
    line-height: 1.7;
    flex: 1;
}
.proj-card .pc-meta {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px dashed var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--gray-500);
}
.proj-card .pc-meta .link {
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.proj-card .pc-meta .link:hover { color: var(--accent); }

/* ---------- Tabs (项目板块切换) ---------- */
.tabs {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.tabs-nav {
    display: flex;
    background: var(--gray-50);
    border-bottom: 2px solid var(--gray-200);
}
.tabs-nav .tab {
    flex: 1;
    text-align: center;
    padding: 16px 0;
    cursor: pointer;
    color: var(--gray-700);
    font-size: 15px;
    font-weight: 500;
    position: relative;
    transition: color var(--trs);
}
.tabs-nav .tab::after {
    content: "";
    position: absolute;
    left: 50%;
    right: 50%;
    bottom: -2px;
    height: 3px;
    background: var(--primary);
    transition: left var(--trs), right var(--trs);
}
.tabs-nav .tab:hover { color: var(--primary); }
.tabs-nav .tab.active {
    color: var(--primary);
    background: #fff;
}
.tabs-nav .tab.active::after {
    left: 24px;
    right: 24px;
}
.tabs-content { padding: 28px; }
.tabs-panel { display: none; }
.tabs-panel.active { display: block; }

/* ---------- Table ---------- */
.tbl {
    width: 100%;
    background: #fff;
    border-collapse: collapse;
}
.tbl th, .tbl td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-200);
    font-size: 14px;
    text-align: left;
}
.tbl thead th {
    background: var(--primary);
    color: #fff;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 1px;
}
.tbl tbody tr:hover { background: var(--primary-50); }
.tbl tbody td.num {
    font-family: var(--font-num);
    color: var(--accent);
    font-weight: 600;
}

/* ---------- Org Chart (组织架构图) ---------- */
.org-chart {
    background: linear-gradient(180deg, #fff 0%, var(--gray-50) 100%);
    padding: 56px 24px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    overflow-x: auto;
}
.org-chart svg { max-width: 100%; height: auto; display: block; margin: 0 auto; }

/* ---------- Tech Capability Cards (核心能力) ---------- */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 18px;
}
.tech-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 28px 22px;
    text-align: center;
    transition: all var(--trs);
    position: relative;
    overflow: hidden;
}
.tech-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transition: transform var(--trs);
}
.tech-card:hover {
    border-color: var(--primary);
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.tech-card:hover::before { transform: scaleX(1); }
.tech-card .icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-50);
    border-radius: 50%;
    color: var(--primary);
    font-size: 28px;
}
.tech-card .icon svg { width: 32px; height: 32px; fill: var(--primary); }
.tech-card .num-tag {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    width: 28px;
    height: 28px;
    line-height: 28px;
    border-radius: 50%;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 12px;
}
.tech-card .name {
    font-size: 17px;
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: 12px;
}
.tech-card .desc {
    font-size: 13px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ---------- Honors Wall (荣誉展示) ---------- */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.honor-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--trs);
}
.honor-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.honor-card .cover {
    aspect-ratio: 4 / 3;
    background: var(--gray-100);
    overflow: hidden;
}
.honor-card .cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}
.honor-card:hover .cover img { transform: scale(1.06); }
.honor-card .info {
    padding: 20px;
    text-align: center;
}
.honor-card .info .title {
    font-size: 16px;
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: 8px;
}
.honor-card .info .date {
    font-size: 12px;
    color: var(--gray-500);
}

/* 著作权滚动展示 */
.patent-marquee {
    overflow: hidden;
    background: var(--gray-50);
    padding: 24px 0;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
}
.patent-track {
    display: flex;
    gap: 24px;
    animation: marquee 60s linear infinite;
    width: max-content;
    padding: 0 24px;
}
.patent-track .patent-card {
    width: 220px;
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}
.patent-track .patent-card img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
}
.patent-track .patent-card .pn {
    text-align: center;
    font-size: 12px;
    color: var(--gray-700);
    padding: 8px;
    background: var(--primary-50);
    border-top: 1px solid var(--gray-200);
}
@keyframes marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

/* ---------- Marquee / 荣誉滚动 ---------- */
.marquee {
    overflow: hidden;
    background: var(--accent);
    color: #fff;
    padding: 12px 0;
    position: relative;
}
.marquee::before, .marquee::after {
    content: "";
    position: absolute;
    top: 0;
    width: 120px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}
.marquee::before {
    left: 0;
    background: linear-gradient(90deg, var(--accent), transparent);
}
.marquee::after {
    right: 0;
    background: linear-gradient(-90deg, var(--accent), transparent);
}
.marquee-label {
    position: absolute;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-dark);
    color: #fff;
    padding: 6px 16px;
    border-radius: 2px;
    font-size: 13px;
    letter-spacing: 2px;
    z-index: 3;
}
.marquee-track {
    display: flex;
    gap: 60px;
    padding-left: 160px;
    animation: marquee 40s linear infinite;
    white-space: nowrap;
}
.marquee-track span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.marquee-track span::before {
    content: "★";
    color: #ffd699;
}

/* ---------- Two column layout ---------- */
.two-col {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 40px;
    align-items: center;
}
.two-col.reverse { grid-template-columns: 1fr 1.1fr; }

/* ---------- Forms ---------- */
.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    color: var(--gray-700);
    font-size: 13px;
    margin-bottom: 6px;
}
.form-group label .req { color: var(--danger); margin-left: 2px; }
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    background: #fff;
    transition: border-color var(--trs), box-shadow var(--trs);
}
.form-control:focus {
    outline: 0;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(1, 79, 162, .12);
}
textarea.form-control { min-height: 120px; resize: vertical; }
.form-tip { font-size: 12px; color: var(--gray-500); margin-top: 4px; }

/* ---------- Footer ---------- */
.footer {
    background: #0d1c30;
    color: rgba(255,255,255,.7);
    padding: 56px 0 0;
    margin-top: 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 18px;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
}
.footer h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
}
.footer .foot-about p {
    font-size: 13px;
    line-height: 1.8;
    margin-bottom: 16px;
}
.footer .foot-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}
.footer .foot-brand .logo {
    width: 56px;
    height: 56px;
    background: url('img/配图1.png') no-repeat center / contain;
    filter: brightness(0) invert(1);
}
.footer .foot-brand .name {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
}
.footer .foot-brand .name small {
    display: block;
    color: rgba(255,255,255,.5);
    font-size: 11px;
    letter-spacing: 2px;
    margin-top: 2px;
}
.footer ul li {
    padding: 6px 0;
    font-size: 13px;
}
.footer ul li a {
    color: rgba(255,255,255,.7);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer ul li a:hover { color: var(--accent); }
.footer ul li a::before {
    content: "›";
    color: var(--accent);
}
.footer .foot-contact li {
    display: flex;
    gap: 10px;
    padding: 5px 0;
    font-size: 13px;
    color: rgba(255,255,255,.7);
}
.footer .foot-contact .icn {
    color: var(--accent);
    flex-shrink: 0;
    width: 16px;
}
.footer-bottom {
    background: #060f1d;
    padding: 18px 0;
    color: rgba(255,255,255,.5);
    font-size: 12px;
    margin-top: 0;
}
.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.footer-bottom a { color: rgba(255,255,255,.5); transition: color .2s; }
.footer-bottom a:hover { color: #fff; text-decoration: underline; }

/* ---------- Quick Action CTA ---------- */
.cta-block {
    background: linear-gradient(120deg, var(--primary-dark), var(--primary));
    color: #fff;
    padding: 56px 0;
    position: relative;
    overflow: hidden;
}
.cta-block::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 90% 50%, rgba(240,131,0,.3), transparent 50%);
}
.cta-block .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 24px;
    position: relative;
}
.cta-block h2 {
    color: #fff;
    font-size: 30px;
    margin-bottom: 8px;
}
.cta-block p { color: rgba(255,255,255,.85); font-size: 14px; }

/* ---------- Timeline (项目大事记) ---------- */
.timeline { position: relative; padding: 20px 0; }
.timeline::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary);
    transform: translateX(-50%);
}
.timeline-item {
    position: relative;
    padding: 18px 0;
    width: 50%;
}
.timeline-item:nth-child(odd)  { padding-right: 50px; text-align: right; }
.timeline-item:nth-child(even) { margin-left: 50%; padding-left: 50px; }
.timeline-item::before {
    content: "";
    position: absolute;
    top: 28px;
    width: 14px;
    height: 14px;
    background: var(--accent);
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--primary);
}
.timeline-item:nth-child(odd)::before  { right: -7px; }
.timeline-item:nth-child(even)::before { left: -7px; }
.timeline-item .year {
    color: var(--primary);
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}
.timeline-item .event {
    color: var(--gray-700);
    font-size: 14px;
    line-height: 1.7;
    background: #fff;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    display: inline-block;
}

/* ---------- Project Detail (项目详情) ---------- */
.proj-detail {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 32px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}
.proj-detail .pd-head {
    padding: 22px 28px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.proj-detail .pd-head .pd-title {
    color: #fff;
    font-size: 20px;
    font-weight: 600;
}
.proj-detail .pd-head .pd-amount {
    background: var(--accent);
    color: #fff;
    padding: 5px 14px;
    border-radius: 16px;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-num);
}
.proj-detail .pd-body {
    padding: 28px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}
.proj-detail .pd-info h4 {
    color: var(--primary);
    font-size: 16px;
    margin-bottom: 12px;
    padding-left: 12px;
    border-left: 3px solid var(--accent);
}
.proj-detail .pd-info p {
    color: var(--gray-700);
    font-size: 14px;
    line-height: 1.85;
    margin-bottom: 12px;
}
.proj-detail .pd-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.proj-detail .pd-gallery .gallery-item {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: var(--radius-sm);
    background: var(--gray-100);
}
.proj-detail .pd-gallery .gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s;
}
.proj-detail .pd-gallery .gallery-item:hover img { transform: scale(1.05); }
.proj-detail .pd-gallery .gallery-item.full {
    grid-column: span 2;
}

/* ---------- Cert Card (证书展示) ---------- */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.cert-card {
    background: #fff;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--trs);
}
.cert-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.cert-card .cert-img {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: var(--gray-50);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cert-card .cert-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 12px;
}
.cert-card .cert-info {
    padding: 18px 20px;
    border-top: 1px solid var(--gray-200);
}
.cert-card .cert-info .name {
    font-size: 16px;
    color: var(--gray-900);
    font-weight: 600;
    margin-bottom: 6px;
}
.cert-card .cert-info .meta {
    font-size: 12px;
    color: var(--gray-500);
}

/* ---------- Contact ---------- */
.contact-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 36px;
    border: 1px solid var(--gray-200);
}
.contact-info-list {
    display: grid;
    gap: 18px;
}
.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px;
    border-radius: var(--radius);
    background: var(--gray-50);
    transition: background var(--trs);
}
.contact-info-item:hover { background: var(--primary-50); }
.contact-info-item .icon {
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 18px;
}
.contact-info-item .text .label {
    font-size: 12px;
    color: var(--gray-500);
    letter-spacing: 1px;
    margin-bottom: 4px;
}
.contact-info-item .text .value {
    color: var(--gray-900);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
}
.contact-info-item .text .value.big {
    color: var(--accent);
    font-size: 22px;
    font-family: var(--font-num);
    font-weight: 700;
}
.map-block {
    border-radius: var(--radius);
    overflow: hidden;
    height: 320px;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    font-size: 13px;
}

/* ---------- Animations ---------- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .7s ease both; }

/* ---------- Mobile / Tablet ---------- */
@media (max-width: 1100px) {
    .nav-list > li > a { padding: 0 16px; font-size: 14px; }
    .stats-row { grid-template-columns: repeat(3, 1fr); }
    .stat-item:nth-child(3) { border-right: 0; }
    .stat-item:nth-child(4) { border-top: 1px solid var(--gray-200); }
    .stat-item:nth-child(5) { border-top: 1px solid var(--gray-200); }
    .stat-item:nth-child(6) { border-top: 1px solid var(--gray-200); border-right: 0; }
    .tech-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 880px) {
    .header .header-contact { display: none; }
    .topbar .topbar-meta { display: none; }
    .nav-search { display: none; }
    .nav-mobile { display: flex; cursor: pointer; }
    .nav-list {
        display: none;
        position: absolute;
        top: var(--nav-h);
        left: 0;
        right: 0;
        background: var(--primary-dark);
        flex-direction: column;
        box-shadow: var(--shadow);
    }
    .nav-list.open { display: flex; }
    .nav-list > li { width: 100%; border-bottom: 1px solid rgba(255,255,255,.08); }
    .nav-list > li > a { padding: 14px 24px; height: auto; }
    .nav-list > li > a::after { display: none; }
    .navbar .container { position: relative; flex-direction: row-reverse; }
    .hero { height: 380px; }
    .hero-content .title { font-size: 32px; }
    .hero-content .subtitle { font-size: 14px; }
    .section { padding: 40px 0; }
    .sec-head .sec-cn { font-size: 22px; padding: 0 18px; }
    .sec-head .sec-cn::before, .sec-head .sec-cn::after { width: 18px; }
    .sec-head .sec-cn::before { left: -18px; }
    .sec-head .sec-cn::after { right: -18px; }
    .two-col { grid-template-columns: 1fr; gap: 24px; }
    .two-col.reverse { grid-template-columns: 1fr; }
    .stats-row { grid-template-columns: repeat(2, 1fr); }
    .stat-item { border-right: 0 !important; border-top: 1px solid var(--gray-200); }
    .stat-item:nth-child(-n+2) { border-top: 0; }
    .stat-item .num { font-size: 30px; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
    .honor-grid, .cert-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .form-row { grid-template-columns: 1fr; }
    .page-hero { height: 220px; }
    .page-hero h1 { font-size: 26px; }
    .proj-detail .pd-body { grid-template-columns: 1fr; padding: 18px; gap: 18px; }
    .proj-detail .pd-head { padding: 16px 18px; flex-wrap: wrap; gap: 8px; }
    .marquee-label { font-size: 12px; padding: 4px 12px; }
    .marquee-track { padding-left: 130px; }
    .timeline::before { left: 16px; }
    .timeline-item { width: 100%; padding-left: 40px !important; padding-right: 12px !important; text-align: left !important; margin-left: 0 !important; }
    .timeline-item::before { left: 9px !important; right: auto !important; }
    .tabs-nav { flex-wrap: wrap; }
    .tabs-nav .tab { flex: 1 0 50%; }
}
@media (max-width: 520px) {
    .stats-row, .tech-grid, .honor-grid, .cert-grid { grid-template-columns: 1fr; }
    .stat-item .num { font-size: 26px; }
    .hero { height: 320px; }
    .hero-content .title { font-size: 26px; }
    .hero-content .actions { flex-direction: column; }
    .header .brand-logo { height: 56px; width: 56px; }
    .header .brand-text h1 { font-size: 19px; }
    .header .brand-text .slogan { font-size: 11px; }
    .header { padding: 12px 0; }
}

/* ---------- Misc ---------- */
.back-to-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 44px;
    height: 44px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: var(--shadow);
    z-index: 99;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--trs), transform var(--trs), background var(--trs);
}
.back-to-top.show {
    opacity: 1;
    transform: translateY(0);
}
.back-to-top:hover { background: var(--accent); }