/*
 * 浙江同力服装有限公司官网 主样式表
 * 风格：现代专业/科技感
 * 配色：深海蓝 (#003366), 活力橙 (#FF6600)
 */

/* ==========================================================================
   1. CSS 变量系统
   ========================================================================== */
:root {
    /* 颜色变量 */
    --color-primary: #003366;       /* 深海蓝 - 主色调 */
    --color-secondary: #F5F6F8;     /* 科技灰/杂志底色 */
    --color-accent: #FF6600;        /* 活力橙 - 强调色/按钮 */
    --color-text-dark: #1F1F1F;     /* 深色文本 */
    --color-text-muted: #5C5C5C;    /* 次级文本 */
    --color-text-light: #FFFFFF;    /* 浅色文本 */
    --color-border: #E6E6E6;        /* 边框颜色 */
    --color-line: #D8D8D8;          /* 分割线 */
    --color-link-hover: #0A4C8A;    /* 链接悬停色 */

    /* 字体变量 */
    --font-family-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-family-display: 'Georgia', 'Times New Roman', serif;
    --font-size-base: 16px;
    --font-size-h1: 2.5rem;
    --font-size-h2: 2rem;
    --font-size-h3: 1.5rem;
    --font-size-h4: 1.25rem;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-bold: 700;

    /* 间距变量 (基于 8px 网格系统) */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;

    /* 边角与阴影 */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --box-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --box-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);

    /* 布局变量 */
    --max-width: 1200px;
    --header-height: 86px;
}

/* ==========================================================================
   2. 全局重置与排版
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-dark);
    font-family: var(--font-family-main);
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--color-link-hover);
}

h1, h2, h3, h4 {
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-normal);
    line-height: 1.2;
    letter-spacing: 0.5px;
    font-family: var(--font-family-display);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ==========================================================================
   3. Grid 布局系统 (响应式)
   ========================================================================== */
.grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr); /* 默认单列 */
    gap: var(--spacing-md);
}

/* 平板 (768px 及以上) */
@media (min-width: 768px) {
    .grid-2-col {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-3-col {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 桌面 (1024px 及以上) */
@media (min-width: 1024px) {
    .grid-4-col {
        grid-template-columns: repeat(4, 1fr);
    }
    .grid-5-col {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ==========================================================================
   4. 头部与固定导航栏
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--color-border);
    box-shadow: none;
    z-index: 1000;
    transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.header.is-scrolled {
    box-shadow: var(--box-shadow-md);
    background-color: #fff;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo a {
    color: var(--color-text-dark);
    font-size: 1.6rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.logo small {
    color: var(--color-text-muted);
    letter-spacing: 1px;
    font-size: 0.8rem;
}

.nav-menu {
    list-style: none;
    display: none; /* 默认隐藏，移动端使用汉堡菜单 */
}

@media (min-width: 1024px) {
    .nav-menu {
        display: flex;
    }
}

.nav-item {
    position: relative;
    margin-left: var(--spacing-md);
}

.nav-item > a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-xs);
    color: var(--color-text-dark);
    font-size: 0.95rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color 0.3s;
}

.nav-item > a:hover {
    color: var(--color-accent);
}

.nav-item.nav-cta > a {
    border: 1px solid var(--color-border);
    border-radius: 999px;
    padding: 10px 16px;
    letter-spacing: 1.2px;
}

.nav-item.nav-cta > a:hover {
    background-color: var(--color-primary);
    color: #fff;
}

/* 二级下拉菜单 */
.submenu {
    list-style: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #fff;
    min-width: 180px;
    box-shadow: var(--box-shadow-md);
    border: 1px solid var(--color-border);
    z-index: 10;
    display: none; /* 默认隐藏 */
}

.nav-item:hover > .submenu {
    display: block;
}

.submenu li a {
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--color-text-dark);
    display: block;
    white-space: nowrap;
}

.submenu li a:hover {
    background-color: var(--color-secondary);
}

/* 汉堡菜单图标 (移动端) */
.menu-toggle {
    display: block;
    cursor: pointer;
    color: var(--color-text-dark);
    font-size: 2rem;
}

@media (min-width: 1024px) {
    .menu-toggle {
        display: none;
    }
}

/* 移动端导航栏展开样式 (由JS控制 .nav-menu.active) */
.nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: #fff;
    box-shadow: var(--box-shadow-sm);
}

.nav-menu.active .nav-item {
    margin: 0;
    border-top: 1px solid var(--color-border);
}

.nav-menu.active .nav-item > a {
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-dark);
}

.nav-menu.active .submenu {
    position: static; /* 移动端下拉菜单改为静态展开 */
    width: 100%;
    box-shadow: none;
    background-color: var(--color-secondary);
}

/* ==========================================================================
   5. 按钮与卡片
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 12px 20px;
    border-radius: 999px;
    font-weight: var(--font-weight-bold);
    text-align: center;
    transition: background-color 0.3s, transform 0.1s;
    cursor: pointer;
    border: none;
    letter-spacing: 1px;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-text-light);
}

.btn-primary:hover {
    background-color: #e65c00; /* 活力橙稍暗 */
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-text-light);
    border: 1px solid rgba(255,255,255,0.5);
}

.btn-outline.dark {
    color: var(--color-text-dark);
    border-color: var(--color-border);
}

.card {
    background-color: var(--color-text-light);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
    padding: var(--spacing-md);
    overflow: hidden;
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
}

/* ==========================================================================
   6. 英雄区 (Hero Section)
   ========================================================================== */
.hero {
    position: relative;
    padding-top: var(--header-height);
    min-height: 520px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    color: var(--color-text-light);
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.25) 60%, rgba(0,0,0,0) 100%);
}

.hero-content {
    position: relative;
    max-width: 640px;
    z-index: 1;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: var(--spacing-sm);
    letter-spacing: 1px;
}

.hero p {
    font-size: 1.15rem;
    margin-bottom: var(--spacing-md);
}

/* 全屏杂志式轮播 */
.hero-magazine {
    position: relative;
    padding-top: var(--header-height);
    min-height: 92vh;
    background-color: #000;
    overflow: hidden;
}

.hero-slider {
    position: relative;
    height: calc(92vh - var(--header-height));
}

.hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
    transform: scale(1.02);
}

.hero-slide.active {
    opacity: 1;
    transform: scale(1);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(0,0,0,0.65) 25%, rgba(0,0,0,0.35) 55%, rgba(0,0,0,0.1) 100%);
}

.hero-caption {
    position: absolute;
    left: 6%;
    bottom: 10%;
    max-width: 540px;
    color: #fff;
    z-index: 2;
}

.hero-caption .eyebrow {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 999px;
    letter-spacing: 2px;
    font-size: 0.75rem;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

.hero-caption h1 {
    font-size: 3.4rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
    font-family: var(--font-family-display);
}

.hero-caption p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: var(--spacing-md);
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-actions .link-inline {
    color: #fff;
    font-weight: var(--font-weight-bold);
    letter-spacing: 1px;
}

.hero-controls {
    position: absolute;
    right: 6%;
    bottom: 10%;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    z-index: 2;
    color: #fff;
}

.hero-controls button {
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.2s ease;
}

.hero-controls button:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.hero-index {
    letter-spacing: 3px;
    font-size: 0.85rem;
}

/* ==========================================================================
   7. 内容区
   ========================================================================== */
.section {
    padding: var(--spacing-xl) 0;
    background-color: #fff;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
}

.section-primary {
    background-color: var(--color-secondary);
}

.section-narrow .container,
.container-narrow {
    max-width: 980px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.section-header .eyebrow {
    color: var(--color-text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.9rem;
}

.section-header h2 {
    margin: 0;
}

/* ==========================================================================
   8. 页脚
   ========================================================================== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    padding: var(--spacing-lg) 0;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-text-light);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==========================================================================
   9. 辅助类
   ========================================================================== */
.text-center {
    text-align: center;
}

.mb-lg {
    margin-bottom: var(--spacing-lg);
}

.img-full-width {
    width: 100%;
    height: auto;
}

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* ==========================================================================
   10. 杂志风组件
   ========================================================================== */
.eyebrow {
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.divider-line {
    width: 64px;
    height: 2px;
    background-color: var(--color-text-dark);
    margin: var(--spacing-sm) 0;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-md);
}

.stat-card {
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    background: #fff;
}

.stat-card strong {
    display: block;
    font-size: 2rem;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xs);
}

.editorial-split {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.editorial-copy p {
    color: var(--color-text-muted);
}

.editorial-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--box-shadow-md);
}

.tagline-box {
    padding: var(--spacing-md);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 12px;
}

.pill {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.page-hero {
    position: relative;
    padding-top: var(--header-height);
    min-height: 420px;
    background-size: cover;
    background-position: center;
    overflow: hidden;
    color: #fff;
}

.page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(0,0,0,0.6) 20%, rgba(0,0,0,0.25) 60%, rgba(0,0,0,0.05) 100%);
}

.page-hero .hero-inner {
    position: relative;
    z-index: 1;
    max-width: 780px;
    padding: var(--spacing-xl) var(--spacing-sm);
}

.page-hero .hero-meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    color: rgba(255,255,255,0.8);
    margin-top: var(--spacing-sm);
}

.timeline {
    border-left: 2px solid var(--color-border);
    padding-left: var(--spacing-md);
}

.timeline-item {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -11px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
}

.quote-box {
    border-left: 4px solid var(--color-primary);
    padding-left: var(--spacing-md);
    color: var(--color-text-muted);
    font-style: italic;
}

.news-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.news-item {
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-md);
}

.case-card {
    border: 1px solid var(--color-border);
    background: #fff;
    padding: var(--spacing-md);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--spacing-lg);
}

.inline-meta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    color: var(--color-text-muted);
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--color-secondary);
    border-radius: 6px;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.table-like {
    display: grid;
    gap: 12px;
}

.table-like .row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}

.link-inline {
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    text-decoration: underline;
}

.link-inline:hover {
    color: var(--color-accent);
}

.article-body {
    line-height: 1.8;
    color: var(--color-text-dark);
}

.article-body img {
    width: 100%;
    border-radius: 10px;
    margin: var(--spacing-md) 0;
    box-shadow: var(--box-shadow-sm);
}

.article-body h2 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.article-meta {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
    .stat-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .editorial-split {
        grid-template-columns: repeat(2, 1fr);
    }
    .case-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .news-list {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .hero-caption h1 {
        font-size: 2.4rem;
    }
    .hero-controls {
        right: 6%;
        bottom: 6%;
    }
}