/* ========================================
   新疆金鑫昱纺织有限责任公司官网 · 丝路棉海主题
   设计语言：Silk Road + 大漠风情 + 现代纺织科技
   版本：2025 全景重构
   ======================================== */

/* ---------- 设计令牌 ---------- */
:root {
    /* 色彩系统 - 丝路棉海 */
    --color-primary: #0D9488;          /* 天山青 */
    --color-primary-strong: #0B7F77;
    --color-primary-soft: #34D399;
    --color-desert: #D4A574;           /* 沙漠金 */
    --color-desert-deep: #B78345;
    --color-sand: #FDF6E3;             /* 暖沙米 */
    --color-cotton: #FFFDF5;           /* 棉花白 */
    --color-night: #1E3A5F;            /* 夜幕蓝 */
    --color-plum: #7C3AED;             /* 葡萄紫 */
    --color-sky: #38BDF8;
    --color-text: #1B2430;
    --color-text-soft: #3C4A5D;
    --color-border: rgba(30, 58, 95, 0.12);
    --color-panel: rgba(255, 253, 245, 0.75);

    /* 字体与尺寸 */
    --font-sans: "Inter", "HarmonyOS Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-display: "Plus Jakarta Sans", var(--font-sans);
    --font-mono: "SFMono-Regular", "Menlo", "Consolas", monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;

    /* 间距 8pt 系统 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* 圆角与阴影 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 28px;
    --radius-pill: 999px;

    --shadow-sm: 0 5px 16px rgba(30, 58, 95, 0.08);
    --shadow-md: 0 10px 30px rgba(30, 58, 95, 0.12);
    --shadow-lg: 0 18px 40px rgba(30, 58, 95, 0.16);

    /* 动效 */
    --ease: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --duration-fast: 180ms;
    --duration: 320ms;
    --duration-slow: 600ms;

    /* 布局宽度 */
    --max-width: 1280px;
    --max-width-wide: 1400px;
}

/* ---------- 全局基础 ---------- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: radial-gradient(circle at 20% 20%, rgba(212,165,116,0.18), transparent 36%),
                radial-gradient(circle at 80% 10%, rgba(124,58,237,0.08), transparent 30%),
                linear-gradient(180deg, #FFFDF5 0%, #F7EEDC 60%, #FDF6E3 100%);
    color: var(--color-text);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: url("../images/xinjiang/xinjiang_04.png");
    background-size: cover;
    background-position: center;
    opacity: 0.05;
    pointer-events: none;
    mix-blend-mode: multiply;
    z-index: 0;
}

img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--duration-fast) var(--ease); }
a:hover { color: var(--color-primary-strong); }

main { position: relative; z-index: 1; }

.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-6); }
.container-wide { max-width: var(--max-width-wide); margin: 0 auto; padding: 0 var(--space-8); }

section { position: relative; padding: var(--space-16) 0; }
.section-tight { padding: var(--space-8) 0; }

.section-heading { margin-bottom: var(--space-6); display: grid; gap: var(--space-2); }
.section-heading h2 { font-size: var(--text-3xl); font-weight: 800; color: var(--color-night); }
.section-heading p { color: var(--color-text-soft); }

/* ---------- 导航 ---------- */
.silk-nav {
    position: sticky;
    top: 0;
    z-index: 999;
    backdrop-filter: blur(12px);
    background: rgba(255, 253, 245, 0.9);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.silk-nav .nav-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: var(--space-3) var(--space-6);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-4);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-night);
}

.brand-text { display: grid; gap: 2px; line-height: 1.2; }
.brand-text strong { font-size: var(--text-lg); letter-spacing: -0.01em; }
.brand-text small { color: var(--color-text-soft); font-size: var(--text-sm); }

.nav-links { display: flex; align-items: center; gap: var(--space-4); justify-content: center; }
.nav-links a { color: var(--color-text-soft); font-weight: 600; padding: var(--space-2) var(--space-3); border-radius: var(--radius-pill); }
.nav-links a:hover, .nav-links a.active { color: var(--color-night); background: rgba(13,148,136,0.08); }

.nav-actions { display: flex; gap: var(--space-3); align-items: center; }

.nav-toggle { display: none; border: 1px solid var(--color-border); background: rgba(255,253,245,0.9); border-radius: var(--radius-md); padding: var(--space-2) var(--space-3); }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-pill);
    font-weight: 700;
    letter-spacing: 0.01em;
    border: none;
    cursor: pointer;
    transition: all var(--duration) var(--ease);
    text-decoration: none;
    box-shadow: var(--shadow-sm);
}

.btn-primary { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-plum) 100%); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn-ghost { background: rgba(13,148,136,0.12); color: var(--color-night); border: 1px solid rgba(13,148,136,0.2); }
.btn-ghost:hover { background: rgba(13,148,136,0.18); }

.btn-desert { background: linear-gradient(135deg, #F1D2A3 0%, #D4A574 100%); color: #1E293B; }
.btn-outline { border: 1px solid var(--color-border); background: rgba(255,255,255,0.9); color: var(--color-night); }

/* ---------- 面板 & 卡片 ---------- */
.card, .glass-card {
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.card::after, .glass-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(13,148,136,0.08), rgba(124,58,237,0.06));
    opacity: 0;
    transition: opacity var(--duration) var(--ease);
    pointer-events: none;
}

.card:hover::after, .glass-card:hover::after { opacity: 1; }

.tile-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-4); }
.tile { padding: var(--space-6); border-radius: var(--radius-md); border: 1px solid var(--color-border); background: rgba(255,255,255,0.6); box-shadow: var(--shadow-sm); }

/* ---------- Panoramic Scroll 首页 ---------- */
.panorama {
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
    position: relative;
    min-height: calc(100vh - 88px);
}

.panorama-panel {
    position: relative;
    padding: var(--space-16) var(--space-8);
    display: grid;
    align-items: center;
    gap: var(--space-10);
}

.panel-shell { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: var(--space-8); align-items: center; }

.hero-badge { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-3); border-radius: var(--radius-pill); background: rgba(13,148,136,0.12); color: var(--color-primary-strong); font-weight: 700; }

.hero-title { font-size: clamp(2.5rem, 4vw, 3.6rem); line-height: 1.15; color: var(--color-night); letter-spacing: -0.02em; }
.hero-sub { color: var(--color-text-soft); max-width: 640px; }

.hero-visual {
    position: relative;
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    background: radial-gradient(circle at 30% 20%, rgba(13,148,136,0.2), transparent 35%),
                linear-gradient(145deg, rgba(212,165,116,0.16), rgba(255,253,245,0.8));
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.hero-visual::before {
    content: "丝路棉海";
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    font-size: var(--text-sm);
    color: rgba(30,58,95,0.45);
    letter-spacing: 0.2em;
}

.hero-mountains {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: #0f172a;
}

.hero-mountains img { width: 100%; height: 320px; object-fit: cover; }

.ribbon-stats { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-4); }
.ribbon-stats .pill { background: rgba(255,255,255,0.65); padding: var(--space-2) var(--space-3); border-radius: var(--radius-pill); border: 1px solid rgba(13,148,136,0.25); font-weight: 700; color: var(--color-night); }

/* ---------- 数据可视化 ---------- */
.stat-board { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-4); }
.stat-card { position: relative; overflow: hidden; border-radius: var(--radius-lg); padding: var(--space-6); background: rgba(255,255,255,0.7); border: 1px solid var(--color-border); box-shadow: var(--shadow-md); }
.stat-card h3 { font-size: var(--text-3xl); color: var(--color-night); margin-bottom: var(--space-2); }
.stat-card p { color: var(--color-text-soft); }

.donut {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: conic-gradient(var(--color-primary) calc(var(--value, 72) * 1%), rgba(13,148,136,0.2) 0);
    display: grid;
    place-items: center;
    margin: 0 auto var(--space-3);
    position: relative;
    box-shadow: var(--shadow-sm);
}

.donut::after {
    content: attr(data-label);
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255,255,255,0.92);
    display: grid;
    place-items: center;
    font-weight: 800;
    color: var(--color-night);
    border: 1px solid var(--color-border);
}

.progress {
    width: 100%;
    height: 10px;
    background: rgba(13,148,136,0.12);
    border-radius: var(--radius-pill);
    overflow: hidden;
    position: relative;
}

.progress span {
    display: block;
    height: 100%;
    width: var(--value, 50%);
    background: linear-gradient(90deg, var(--color-primary), var(--color-desert));
    border-radius: var(--radius-pill);
}

.metric-pill { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-3); border-radius: var(--radius-pill); background: rgba(30,58,95,0.08); color: var(--color-night); font-weight: 700; }

/* ---------- 产品、案例、新闻 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-4); }
.product-card { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--color-border); background: rgba(255,255,255,0.8); box-shadow: var(--shadow-sm); display: grid; grid-template-rows: 180px 1fr; }
.product-card img { width: 100%; height: 100%; object-fit: cover; }
.product-card .body { padding: var(--space-5); display: grid; gap: var(--space-3); }
.product-card h4 { font-size: var(--text-xl); color: var(--color-night); }

.case-card, .news-card {
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    background: rgba(255,255,255,0.8);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    display: grid;
    gap: var(--space-3);
}

.news-meta { display: flex; gap: var(--space-3); align-items: center; color: var(--color-text-soft); font-size: var(--text-sm); }
.news-card img { width: 100%; border-radius: var(--radius-md); height: 180px; object-fit: cover; }

/* ---------- 丝路物流地图 ---------- */
.map-panel {
    background: radial-gradient(circle at 20% 30%, rgba(13,148,136,0.18), transparent 35%),
                linear-gradient(135deg, rgba(212,165,116,0.12), rgba(30,58,95,0.08));
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: var(--space-8);
}

.silk-map {
    position: relative;
    background: rgba(255,255,255,0.8);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--space-6);
}

.map-legend { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-4); }
.map-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--color-primary); box-shadow: 0 0 0 6px rgba(13,148,136,0.12); }
.logistics-stop { fill: var(--color-primary); stroke: #fff; stroke-width: 3; opacity: 0.9; transition: transform var(--duration) var(--ease), fill var(--duration) var(--ease); }
.logistics-stop.active { transform: scale(1.15); fill: var(--color-plum); }

/* ---------- 首页 新闻 & 案例 ---------- */
.home-news-cases { display: grid; gap: var(--space-6); }
.news-stack, .case-stack { display: grid; gap: var(--space-4); }
.news-item, .case-item {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    background: rgba(255,255,255,0.82);
    box-shadow: var(--shadow-sm);
    display: grid;
    gap: var(--space-3);
}
.news-item h4, .case-item h4 { margin: 0; color: var(--color-night); }
.news-meta, .case-meta { display: flex; gap: var(--space-2); align-items: center; color: var(--color-text-soft); font-size: var(--text-sm); flex-wrap: wrap; }
.news-tags, .case-tags { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    background: rgba(13,148,136,0.12);
    color: var(--color-primary-strong);
    font-weight: 700;
    font-size: var(--text-sm);
}

/* ---------- VR 工厂 ---------- */
.vr-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, rgba(12,18,34,0.8), rgba(13,148,136,0.6));
    color: #fff;
    min-height: 360px;
}

.vr-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; filter: saturate(0.9) brightness(0.65); }
.vr-overlay { position: relative; padding: var(--space-8); display: grid; gap: var(--space-3); max-width: 520px; }

.badge { display: inline-flex; align-items: center; gap: var(--space-2); padding: var(--space-2) var(--space-3); background: rgba(255,255,255,0.12); border-radius: var(--radius-pill); font-weight: 700; }

/* ---------- 页面通用版式 ---------- */
.page-hero {
    padding: var(--space-16) 0 var(--space-12);
    background: linear-gradient(135deg, rgba(13,148,136,0.14), rgba(212,165,116,0.16)),
                radial-gradient(circle at 80% 20%, rgba(124,58,237,0.08), transparent 45%),
                #FFFDF5;
    position: relative;
    overflow: hidden;
}

.page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: url("../images/xinjiang/xinjiang_02.png") center/cover;
    opacity: 0.08;
    pointer-events: none;
}

.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2.4rem, 3vw, 3.2rem); color: var(--color-night); letter-spacing: -0.02em; margin-bottom: var(--space-3); }
.page-hero p { max-width: 720px; color: var(--color-text-soft); }

.breadcrumb { display: flex; gap: var(--space-2); align-items: center; color: var(--color-text-soft); font-size: var(--text-sm); margin-bottom: var(--space-2); }

.content-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--space-6); }

.list { list-style: none; display: grid; gap: var(--space-3); }
.list li { padding-left: var(--space-4); position: relative; }
.list li::before { content: "✦"; position: absolute; left: 0; color: var(--color-primary); }

.timeline { border-left: 2px solid rgba(30,58,95,0.14); padding-left: var(--space-4); display: grid; gap: var(--space-5); }
.timeline-item { position: relative; }
.timeline-item::before { content: ""; position: absolute; left: -30px; top: 8px; width: 14px; height: 14px; background: var(--color-primary); border-radius: 50%; box-shadow: 0 0 0 6px rgba(13,148,136,0.16); }

.table { width: 100%; border-collapse: collapse; background: rgba(255,255,255,0.8); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.table th, .table td { padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--color-border); text-align: left; }
.table th { background: rgba(30,58,95,0.06); color: var(--color-night); }

/* ---------- 表单 ---------- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: var(--space-4); }
.input, textarea, select { width: 100%; padding: var(--space-3); border-radius: var(--radius-md); border: 1px solid var(--color-border); background: rgba(255,255,255,0.9); font-size: var(--text-base); transition: border-color var(--duration-fast) var(--ease); }
.input:focus, textarea:focus, select:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(13,148,136,0.15); }

dialog::backdrop { background: rgba(15,23,42,0.45); backdrop-filter: blur(6px); }
dialog { border: none; }

/* ---------- 棉絮粒子 ---------- */
#cotton-canvas { position: fixed; inset: 0; pointer-events: none; z-index: 2; mix-blend-mode: screen; opacity: 0.85; }

/* ---------- 页脚 ---------- */
footer { background: #0f172a; color: rgba(255,255,255,0.78); padding: var(--space-12) 0 var(--space-6); margin-top: var(--space-12); position: relative; overflow: hidden; }
footer::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 20% 20%, rgba(13,148,136,0.35), transparent 40%); opacity: 0.7; }
footer .container-wide { position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-6); margin-bottom: var(--space-6); }
.footer-section h4 { color: #fff; margin-bottom: var(--space-3); }
.footer-section ul { list-style: none; display: grid; gap: var(--space-2); }
.footer-section a { color: rgba(255,255,255,0.78); }
.footer-section a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: var(--space-4); display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: space-between; align-items: center; font-size: var(--text-sm); }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
    .silk-nav .nav-inner { grid-template-columns: auto auto; grid-template-rows: auto auto; }
    .nav-links { grid-column: 1 / -1; flex-wrap: wrap; justify-content: flex-start; }
}

@media (max-width: 880px) {
    .silk-nav { position: sticky; }
    .nav-links { display: none; width: 100%; flex-direction: column; background: rgba(255,253,245,0.95); border-radius: var(--radius-lg); padding: var(--space-4); box-shadow: var(--shadow-md); }
    .nav-links.open { display: flex; }
    .nav-toggle { display: inline-flex; }
    .panorama { display: block; overflow: visible; }
    .panorama-panel { padding: var(--space-10) var(--space-6); }
}

@media (max-width: 640px) {
    .hero-title { font-size: 2.4rem; }
    .hero-visual { padding: var(--space-4); }
    .hero-mountains img { height: 240px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}