/*
 * 浙江富润印染有限公司官网 - 色彩炼金术主题样式
 * 统一的设计令牌、布局系统、交互动效与子页面通用样式
 */

:root {
    /* 色彩 DNA（企业级海湾蓝/科技青/环保绿） */
    --color-primary: #0b3a5c; /* 深海蓝 - 稳重/专业 */
    --color-secondary: #0fa3b1; /* 海湾青 - 科技/水系 */
    --color-accent: #53c68c; /* 环保绿 - 可持续 */
    --color-amber: #f6c344; /* 金琥珀 - 品质感 */
    --color-ink: #06121f; /* 墨蓝底 */
    --color-surface: #0b1e31; /* 深底容器 */
    --color-panel: #10283f; /* 卡片底色 */
    --color-border: rgba(255, 255, 255, 0.08);
    --color-text: #e8edf3;
    --color-text-muted: #b7c6d8;
    --color-success: #53c68c;
    --color-warning: #f6c344;

    /* 渐变令牌 */
    --gradient-hero: linear-gradient(135deg, #0b2f4a, #0fa3b1 58%, #53c68c 85%);
    --gradient-card: linear-gradient(145deg, rgba(11,58,92,0.24), rgba(15,163,177,0.12));
    --gradient-soft: radial-gradient(circle at 20% 20%, rgba(15,163,177,0.14), transparent 38%),
                     radial-gradient(circle at 80% 0%, rgba(83,198,140,0.12), transparent 40%),
                     linear-gradient(180deg, rgba(11,30,49,0.96), rgba(11,30,49,0.92));

    /* 尺寸与圆角 */
    --max-width: 1280px;
    --spacing-xs: 8px;
    --spacing-sm: 14px;
    --spacing-md: 22px;
    --spacing-lg: 40px;
    --spacing-xl: 72px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --shadow-soft: 0 10px 40px rgba(0,0,0,0.25);
    --shadow-strong: 0 20px 60px rgba(0,0,0,0.35);
    --header-height: 76px;

    --font-body: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-body);
    background: radial-gradient(circle at 20% 20%, rgba(12,61,98,0.16), transparent 25%),
                radial-gradient(circle at 80% 0%, rgba(15,163,177,0.14), transparent 26%),
                #06121f;
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

a { color: #71c7e0; text-decoration: none; transition: all 0.2s ease; }
a:hover { color: #9fe0d8; }

img { max-width: 100%; display: block; border-radius: var(--radius-md); }

.container { width: min(var(--max-width), calc(100% - 48px)); margin: 0 auto; }

section { position: relative; padding: var(--spacing-xl) 0; }

h1, h2, h3, h4, h5, h6 { color: #f8fafc; line-height: 1.25; letter-spacing: 0.01em; }
h1 { font-size: clamp(32px, 4vw, 48px); }
h2 { font-size: clamp(26px, 3vw, 36px); }
h3 { font-size: clamp(22px, 2.6vw, 30px); }
h4 { font-size: 20px; }

p { margin-bottom: var(--spacing-sm); color: var(--color-text); }

ul { margin: 0 0 var(--spacing-md) var(--spacing-md); color: var(--color-text); }
li { margin-bottom: 6px; }

/* ====== 按钮 & 标签 ====== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: rgba(255,255,255,0.04);
    color: #f8fafc;
    font-weight: 600;
    letter-spacing: 0.01em;
    box-shadow: 0 10px 24px rgba(0,0,0,0.25);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    line-height: 1.1;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.btn-primary { background: linear-gradient(120deg, #0fa3b1, #0b3a5c, #53c68c); border: none; }
.btn-ghost { background: rgba(255,255,255,0.06); }
.btn-outline { border: 1px solid rgba(255,255,255,0.35); background: transparent; }
.btn-light { background: #f8fafc; color: #0b1021; border: none; }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 12px;
    background: rgba(255,255,255,0.06);
    color: #e2e8f0;
    font-size: 13px;
    letter-spacing: 0.02em;
}

.eyebrow { color: #7fd4e3; text-transform: uppercase; letter-spacing: 0.14em; font-size: 12px; margin-bottom: var(--spacing-sm); display: inline-block; }

/* ====== 布局 ====== */
.grid { display: grid; gap: var(--spacing-md); }
.grid-col-1 { grid-template-columns: 1fr; }
.grid-col-2 { grid-template-columns: repeat(2, 1fr); }
.grid-col-3 { grid-template-columns: repeat(3, 1fr); }
.grid-col-4 { grid-template-columns: repeat(4, 1fr); }
.grid-col-5 { grid-template-columns: repeat(5, 1fr); }

@media (max-width: 1024px) {
    .grid-col-4, .grid-col-5 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .grid-col-2, .grid-col-3, .grid-col-4, .grid-col-5 { grid-template-columns: 1fr; }
}

.section-header { margin-bottom: var(--spacing-lg); max-width: 760px; }
.section-header p { color: var(--color-text-muted); }

/* ====== 导航 ====== */
.header {
    position: sticky;
    top: 0;
    z-index: 999;
    height: var(--header-height);
    background: rgba(6,18,31,0.9);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 30px rgba(0,0,0,0.22);
}
.nav-container {
    height: 100%;
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    width: min(var(--max-width), calc(100% - 48px));
    margin: 0 auto;
}
.logo a {
    font-weight: 800;
    font-size: 20px;
    color: #f8fafc;
    letter-spacing: 0.04em;
    white-space: nowrap;
    line-height: 1.1;
    display: flex;
    align-items: center;
    height: var(--header-height);
}
.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0;
    overflow-x: auto;
    height: 100%;
}
.nav-item { position: relative; }
.nav-item > a {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 14px;
    color: #e2e8f0;
    border-radius: 12px;
    font-weight: 600;
    line-height: 1.1;
}
.nav-item > a:hover { background: rgba(15,163,177,0.12); color: #9fe0d8; }
.nav-actions { display: flex; align-items: center; gap: 10px; height: 100%; }
.nav-actions .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: calc(var(--header-height) - 18px);
    padding: 0 18px;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 180px;
    background: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    list-style: none;
    padding: 10px 0;
    z-index: 20;
}
.nav-item:hover .dropdown-menu { display: block; }
.dropdown-menu li a {
    display: block;
    padding: 10px 16px;
    color: #e2e8f0;
}
.dropdown-menu li a:hover { background: rgba(15,163,177,0.12); color: #9fe0d8; }

@media (max-width: 900px) {
    .nav-container { gap: 12px; }
    .nav-menu { flex: 1; justify-content: flex-end; }
}

/* ====== Hero ====== */
.hero {
    min-height: 80vh;
    display: grid;
    place-items: center;
    background: var(--gradient-hero);
    overflow: hidden;
    position: relative;
}
.hero::before, .hero::after {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.hero::before { background: radial-gradient(circle at 20% 20%, rgba(255,255,255,0.14), transparent 35%), radial-gradient(circle at 80% 0%, rgba(255,255,255,0.18), transparent 38%); mix-blend-mode: screen; opacity: 0.8; animation: floatGlow 12s ease-in-out infinite; }
.hero::after { background: linear-gradient(180deg, rgba(0,0,0,0.25), rgba(0,0,0,0.55)); }
.hero-content { position: relative; z-index: 1; width: min(var(--max-width), calc(100% - 48px)); padding: var(--spacing-xl) 0; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--spacing-lg); align-items: center; }
.hero-text p { color: #d7e9f2; max-width: 620px; }
.hero-visual { position: relative; }
.hero-visual .frame {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.14);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow-strong);
    backdrop-filter: blur(10px);
}
.hero-stats { margin-top: var(--spacing-lg); display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--spacing-md); }
.hero-stat { padding: 16px; background: rgba(255,255,255,0.06); border-radius: var(--radius-md); border: 1px solid var(--color-border); }
.hero-stat strong { display: block; font-size: 26px; color: var(--color-amber); }

@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; }
}

@keyframes floatGlow {
    0% { transform: translate3d(0,0,0); }
    50% { transform: translate3d(0,-12px,0); }
    100% { transform: translate3d(0,0,0); }
}

/* ====== 卡片 ====== */
.card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.card:hover { transform: translateY(-6px); border-color: rgba(255,255,255,0.22); box-shadow: var(--shadow-strong); }
.card-body { padding: var(--spacing-md); }
.card-title { margin-bottom: var(--spacing-sm); color: #f8fafc; }
.card-img-top { width: 100%; height: auto; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }

.glass-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.16); border-radius: var(--radius-lg); padding: var(--spacing-md); box-shadow: var(--shadow-soft); }
.gradient-card { background: var(--gradient-card); border: 1px solid rgba(255,255,255,0.18); }

/* ====== 页面通用 ====== */
.page-header {
    margin-top: var(--header-height);
    padding: var(--spacing-lg) 0;
    background: var(--gradient-soft);
    border-bottom: 1px solid var(--color-border);
}
.page-header .container { position: relative; z-index: 1; }
.page-header h1 { margin-bottom: 6px; }
.page-header p { color: var(--color-text-muted); }

.page-content { padding: var(--spacing-lg) 0 var(--spacing-xl); }
.sidebar {
    padding: var(--spacing-md);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(6px);
}
.sidebar h3 { margin-bottom: var(--spacing-sm); border-bottom: 1px solid var(--color-border); padding-bottom: 10px; }
.sidebar ul { list-style: none; margin: 0; }
.sidebar li a { display: block; padding: 10px 0; color: #e5e7eb; border-bottom: 1px solid rgba(255,255,255,0.06); }
.sidebar li:last-child a { border-bottom: none; }
.sidebar a:hover { color: #9fe0d8; }

.company-intro-img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-soft); }
.highlight-box {
    background: rgba(15,163,177,0.12);
    border-left: 4px solid var(--color-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    color: #d7e9f2;
}

/* ====== 列表/表格 ====== */
.table-like { width: 100%; border-collapse: collapse; }
.table-like th, .table-like td { padding: 12px 14px; border-bottom: 1px solid var(--color-border); text-align: left; }

/* ====== 色卡系统 ====== */
.swatch-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--spacing-md); }
.color-chip {
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 12px;
    align-items: center;
    background: rgba(255,255,255,0.04);
}
.color-block { width: 64px; height: 64px; border-radius: 14px; border: 1px solid rgba(0,0,0,0.08); box-shadow: inset 0 1px 0 rgba(255,255,255,0.1); }
.color-meta h4 { margin: 0 0 4px; }
.color-meta small { color: var(--color-text-muted); }
.color-filter { display: flex; gap: 12px; flex-wrap: wrap; margin: var(--spacing-md) 0; }
.color-filter input, .color-filter select {
    padding: 12px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: rgba(255,255,255,0.04);
    color: #f8fafc;
}

/* ====== ESG ====== */
.esg-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--spacing-md); }
.esg-card { padding: var(--spacing-md); border-radius: var(--radius-lg); background: rgba(255,255,255,0.04); border: 1px solid var(--color-border); }
.esg-progress { width: 100%; height: 10px; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden; margin-top: 10px; }
.esg-progress span { display: block; height: 100%; border-radius: 999px; background: linear-gradient(120deg, #0fa3b1, #53c68c); }

/* ====== 表单 ====== */
form { display: grid; gap: 14px; }
input, select, textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: rgba(255,255,255,0.04);
    color: #f8fafc;
}
textarea { resize: vertical; min-height: 120px; }
label { color: #e5e7eb; font-weight: 600; }

/* ====== 页脚 ====== */
.footer {
    background: linear-gradient(180deg, rgba(11,30,49,0.95), rgba(6,18,31,1));
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    color: var(--color-text);
}
.footer-grid { display: grid; gap: var(--spacing-lg); grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.footer-col h4 { margin-bottom: var(--spacing-sm); }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 8px; }
.footer a { color: #9fe0d8; }
.footer a:hover { color: var(--color-secondary); }
.copyright { margin-top: var(--spacing-md); padding-top: var(--spacing-md); border-top: 1px solid var(--color-border); text-align: center; color: var(--color-text-muted); font-size: 14px; }

/* ====== 版式辅助 ====== */
.text-center { text-align: center; }
.muted { color: var(--color-text-muted); }
.bg-panel { background: rgba(255,255,255,0.03); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--spacing-md); }

/* ====== 组件扩展 ====== */
.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; }
.pill { padding: 8px 12px; border-radius: 999px; border: 1px solid var(--color-border); color: #e5e7eb; background: rgba(255,255,255,0.05); font-size: 13px; }

.feature-grid { display: grid; gap: var(--spacing-md); grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.feature-card { padding: var(--spacing-md); border-radius: var(--radius-lg); background: rgba(255,255,255,0.04); border: 1px solid var(--color-border); box-shadow: var(--shadow-soft); }
.feature-card h3 { margin-bottom: 6px; }
.feature-card p { color: var(--color-text-muted); }

.metric-grid { display: grid; gap: var(--spacing-md); grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.metric-card { padding: var(--spacing-md); border-radius: var(--radius-lg); background: rgba(255,255,255,0.05); border: 1px solid var(--color-border); text-align: left; }
.metric-card strong { display: block; font-size: 28px; color: var(--color-amber); }
.metric-card span { color: var(--color-text-muted); font-size: 14px; }

.process-flow { display: grid; gap: var(--spacing-md); grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin-top: var(--spacing-md); }
.process-step { padding: var(--spacing-md); border-radius: var(--radius-lg); background: rgba(255,255,255,0.05); border: 1px dashed rgba(255,255,255,0.18); position: relative; }
.process-step::after { content: ""; position: absolute; right: -14px; top: 50%; transform: translateY(-50%); width: 24px; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5)); }
.process-step:last-child::after { display: none; }
.process-step h4 { margin-bottom: 6px; }
.process-step small { color: var(--color-text-muted); }

.tag { display: inline-block; padding: 6px 10px; border-radius: 8px; background: rgba(255,255,255,0.08); color: #e5e7eb; font-size: 12px; letter-spacing: 0.02em; }

.timeline { position: relative; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 0; bottom: 0; width: 2px; background: linear-gradient(180deg, #0fa3b1, rgba(255,255,255,0)); }
.timeline-item { position: relative; padding: 10px 0 10px 12px; }
.timeline-item::before { content: ""; position: absolute; left: -20px; top: 16px; width: 10px; height: 10px; border-radius: 50%; background: var(--color-secondary); box-shadow: 0 0 0 6px rgba(15,163,177,0.18); }
.timeline-item h4 { margin-bottom: 4px; }
.timeline-item p { color: var(--color-text-muted); }

.case-grid { display: grid; gap: var(--spacing-md); grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.case-card { padding: var(--spacing-md); border-radius: var(--radius-lg); background: rgba(255,255,255,0.05); border: 1px solid var(--color-border); }
.case-card h4 { margin-bottom: 6px; }
.case-card p { color: var(--color-text-muted); }

.news-grid { display: grid; gap: var(--spacing-md); grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.news-card { padding: var(--spacing-md); border-radius: var(--radius-lg); background: rgba(255,255,255,0.04); border: 1px solid var(--color-border); }
.news-card h4 { margin-bottom: 6px; }
.news-card p { color: var(--color-text-muted); }

.contact-grid { display: grid; gap: var(--spacing-md); grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.contact-card { padding: var(--spacing-md); border-radius: var(--radius-lg); background: rgba(255,255,255,0.05); border: 1px solid var(--color-border); }
.contact-card strong { display: block; margin-bottom: 6px; }

.cta-panel { padding: var(--spacing-lg); border-radius: var(--radius-lg); background: linear-gradient(120deg, rgba(12,61,98,0.22), rgba(15,163,177,0.16)); border: 1px solid rgba(255,255,255,0.16); box-shadow: var(--shadow-soft); }

@media (max-width: 640px) {
    .container { width: calc(100% - 32px); }
    .header { height: auto; }
    .nav-container { flex-direction: column; align-items: flex-start; gap: 8px; padding: 12px 0; }
    .nav-menu { width: 100%; justify-content: flex-start; }
    .nav-item > a { height: auto; padding: 10px 12px; }
    .hero { padding-top: var(--spacing-lg); }
}