/**
 * 全局样式 — 185传奇设计图风格
 * 配色由后台 stn_primary_color 等变量覆盖
 */

:root {
    /* ===== 设计图默认配色（琥珀金） ===== */
    --stn-primary: #C47A1E;
    --stn-secondary: #B06D18;
    --stn-button: #C47A1E;
    --stn-bg: #FAF8F5;
    --stn-card-bg: #FFFFFF;
    --stn-text: #1D1B17;
    --stn-text-light: #0E0D0A;
    --stn-text-muted: #78746E;
    --stn-text-dim: #B5B1AA;
    --stn-border: #E8E3DB;
    --stn-border-light: #F0EBE4;
    --stn-shadow: 0 1px 2px rgba(0,0,0,0.04);
    --stn-shadow-md: 0 2px 12px rgba(0,0,0,0.06);
    --stn-radius-sm: 5px;
    --stn-radius-md: 10px;
    --stn-radius-lg: 14px;
    --stn-transition: 130ms ease;
    
    /* 兼容变量（模板使用） */
    --color-bg: var(--stn-bg);
    --color-surface: var(--stn-card-bg);
    --color-surface-hover: #FDFBF8;
    --color-text: var(--stn-text);
    --color-text-em: var(--stn-text-light);
    --color-text-secondary: var(--stn-text);
    --color-text-muted: var(--stn-text-muted);
    --color-text-dim: var(--stn-text-dim);
    --color-primary: var(--stn-primary);
    --color-primary-light: var(--stn-secondary);
    --color-primary-soft: rgba(196, 122, 30, 0.08);
    --color-primary-glow: rgba(196, 122, 30, 0.13);
    --color-border: var(--stn-border);
    --color-border-light: var(--stn-border-light);
    --color-shadow: var(--stn-shadow);
    --color-shadow-md: var(--stn-shadow-md);
    --radius-sm: var(--stn-radius-sm);
    --radius-md: var(--stn-radius-md);
    --radius-lg: var(--stn-radius-lg);
    --transition: var(--stn-transition);
    
    /* 设计图专用 */
    --font-display: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    --font-mono: "JetBrains Mono", "SF Mono", "Consolas", monospace;
    --nav-height: 54px;
    --max-w: 1120px;
}

/* ===== 重置 ===== */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background: var(--color-bg);
    color: var(--color-text);
    font: 14px/1.6 var(--font-body);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    line-height: 1.2;
    color: var(--color-text-em);
}
h1 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: -0.015em; }
h2 { font-size: clamp(19px, 2.6vw, 24px); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 15px; font-weight: 600; }
h4 { font-size: 14px; font-weight: 600; }

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; height: auto; }

.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 18px;
}
@media (max-width: 768px) {
    .container { padding: 0 12px; }
}

/* ===== 通用组件 ===== */
.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.09em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 6px;
}
.section-tag::before {
    content: '';
    width: 16px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 1px;
}

.section-sub {
    color: var(--color-text-muted);
    font-size: 13px;
    max-width: 56ch;
    margin-top: 3px;
    margin-bottom: 18px;
}

.section {
    padding: 40px 0;
}
.section-alt {
    background: #F5F1EB;
}
@media (max-width: 768px) {
    .section { padding: 32px 0; }
}

/* ===== 导航栏（毛玻璃） ===== */
.topnav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(14px) saturate(160%);
    -webkit-backdrop-filter: blur(14px) saturate(160%);
    border-bottom: 1px solid var(--color-border);
}
.topnav .container {
    display: flex;
    align-items: center;
    height: var(--nav-height);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    color: var(--color-text-em);
    text-decoration: none;
    flex-shrink: 0;
}
.nav-brand .logo {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--color-primary), #9E5D12);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}
.nav-brand .logo svg {
    width: 15px;
    height: 15px;
}

.nav-spacer {
    flex: 1;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
}
.nav-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    padding: 5px 11px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
    background: var(--color-primary-soft);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}
.hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

@media (max-width: 860px) {
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(14px) saturate(160%);
        flex-direction: column;
        padding: 12px 24px 20px;
        gap: 2px;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-120%);
        transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
        box-shadow: var(--color-shadow-md);
        align-items: stretch;
        z-index: 999;
    }
    .nav-links.open {
        transform: translateY(0);
    }
    .nav-links a {
        padding: 10px 14px;
        font-size: 14px;
        border-radius: var(--radius-sm);
        text-align: center;
    }
    .hamburger {
        display: flex;
    }
}

/* ===== 面包屑 ===== */
.breadcrumb {
    font-size: 12px;
    color: var(--color-text-dim);
    padding: 18px 0 12px;
}
.breadcrumb a {
    color: var(--color-text-dim);
    text-decoration: none;
}
.breadcrumb a:hover {
    color: var(--color-primary);
}
.breadcrumb .sep {
    margin: 0 4px;
}

/* ===== 页脚 ===== */
.pagefoot {
    border-top: 1px solid var(--color-border);
    padding: 24px 0 18px;
    font-size: 12px;
    color: var(--color-text-dim);
    text-align: center;
    line-height: 1.8;
}
.pagefoot a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    margin: 0 6px;
}
.pagefoot a:hover {
    color: var(--color-primary);
}
.pagefoot .footer-links {
    margin-bottom: 6px;
}
.pagefoot .footer-links span {
    color: var(--color-text-dim);
}

/* ===== 分页 ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 24px 0 0;
}
.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    height: 30px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    background: var(--color-surface);
    transition: all var(--transition);
}
.pagination a:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.pagination a.active,
.pagination span.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.pagination .prev,
.pagination .next {
    padding: 0 10px;
}

/* ===== 响应式增强 ===== */
@media (max-width: 640px) {
    .section-tag { font-size: 10px; }
    h1 { font-size: 22px; }
    h2 { font-size: 18px; }
}