/* ============================================
   摄状元®创影 — 主样式表 v2.0
   色彩体系：电影行业暖色商业风格
   主色：影院红 #C41E3A | 荣耀金 #D4A853 | 珊瑚橙 #FF6B5B
   背景：暖白 #FFFBF5 | 奶油色 #FFF5EB
   文字：炭灰 #2D2D2D | 柔灰 #6B6B6B
   最后更新：2026-07-31 by 老金
   ============================================ */

/* ===== CSS变量 ===== */
:root {
    --szy-red: #C41E3A;
    --szy-red-dark: #9E172E;
    --szy-gold: #D4A853;
    --szy-coral: #FF6B5B;
    --szy-warm-bg: #FFFBF5;
    --szy-cream: #FFF5EB;
    --szy-text: #2D2D2D;
    --szy-text-light: #6B6B6B;
    --szy-text-muted: #999999;
    --szy-border: rgba(0,0,0,0.06);
    --szy-shadow: 0 2px 12px rgba(0,0,0,0.06);
    --szy-shadow-hover: 0 8px 24px rgba(0,0,0,0.1);
}

/* ===== 基础重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--szy-text);
    background: var(--szy-warm-bg);
    overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color 0.25s; }
ul, ol { list-style: none; }

/* ===== 通用容器 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 4rem 0; }
.section-title { font-size: 2rem; font-weight: 700; text-align: center; margin-bottom: 1rem; color: var(--szy-text); }
.section-subtitle { text-align: center; color: var(--szy-text-light); margin-bottom: 3rem; font-size: 1.1rem; }

/* ===== 按钮 ===== */
.btn {
    display: inline-block; padding: 0.75rem 1.5rem; border-radius: 8px;
    font-weight: 600; font-size: 1rem; cursor: pointer;
    transition: all 0.3s; border: none; text-align: center;
}
.btn-primary { background: linear-gradient(135deg, #C41E3A 0%, #FF6B5B 100%); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(196,30,58,0.3); color: #fff; }
.btn-secondary { background: #fff; color: var(--szy-red); border: 2px solid var(--szy-red); }
.btn-secondary:hover { background: var(--szy-red); color: #fff; }
.btn-large { padding: 1rem 2rem; font-size: 1.1rem; }

/* ===== 卡片 ===== */
.card {
    background: #fff; border-radius: 12px; padding: 2rem;
    box-shadow: var(--szy-shadow); transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--szy-shadow-hover); }

/* ===== 顶部导航 — site-header ===== */
.site-header {
    background: rgba(255, 251, 245, 0.97);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(196,30,58,0.08);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.site-header .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 64px;
}
.site-header .logo-text {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--szy-red);
    letter-spacing: 1px;
}
.site-header .main-nav .nav-list {
    display: flex;
    list-style: none;
    gap: 0;
    margin: 0;
    padding: 0;
}
.site-header .nav-item a {
    display: block;
    padding: 8px 16px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--szy-text);
    border-radius: 8px;
    transition: all 0.25s;
}
.site-header .nav-item a:hover,
.site-header .nav-item.active a {
    color: var(--szy-red);
    background: rgba(196,30,58,0.06);
}
.mobile-header-auth { display: flex; gap: 8px; }
.mobile-auth-btn {
    padding: 6px 16px; border-radius: 20px;
    font-size: 0.85rem; font-weight: 600; transition: all 0.25s;
}
.mobile-auth-login { color: var(--szy-red); border: 1.5px solid var(--szy-red); background: transparent; }
.mobile-auth-login:hover { background: var(--szy-red); color: #fff; }
.mobile-auth-register {
    background: linear-gradient(135deg, #C41E3A, #FF6B5B);
    color: #fff; border: none;
}
.mobile-auth-register:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(196,30,58,0.3); }
.mobile-menu-toggle {
    display: none; background: none; border: none; cursor: pointer;
    padding: 6px; flex-direction: column; gap: 5px;
}
.mobile-menu-toggle span { display: block; width: 22px; height: 2px; background: var(--szy-text); border-radius: 2px; transition: all 0.3s; }

/* ===== 导航栏 — navbar（nav.php使用） ===== */
.navbar {
    background: rgba(255, 251, 245, 0.97);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(196,30,58,0.08);
}
.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}
.navbar-brand {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--szy-red);
}
.navbar-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}
.navbar-menu a {
    display: block;
    padding: 8px 16px;
    color: var(--szy-text);
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.25s;
}
.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--szy-red);
    background: rgba(196,30,58,0.06);
}
.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--szy-text);
}

/* ===== 页脚 — site-footer ===== */
.site-footer {
    background: #2D2D2D;
    color: rgba(255,255,255,0.85);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
    gap: 2rem;
    margin-bottom: 2rem;
}
.footer-brand .footer-logo {
    font-size: 1.3rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.5rem;
}
.footer-brand .footer-slogan {
    color: var(--szy-gold);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}
.footer-brand .footer-tech {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
    line-height: 1.5;
}
.footer-links h4,
.footer-contact h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 1rem;
}
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 0.5rem; }
.footer-links a {
    color: rgba(255,255,255,0.65);
    font-size: 0.88rem;
    transition: color 0.25s;
}
.footer-links a:hover { color: var(--szy-gold); }
.footer-contact p {
    color: rgba(255,255,255,0.65);
    font-size: 0.88rem;
    margin-bottom: 0.4rem;
}
.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.12);
}
.footer-bottom p {
    color: rgba(255,255,255,0.45);
    font-size: 0.82rem;
    margin-bottom: 0.3rem;
}
.footer-bottom a { color: rgba(255,255,255,0.55); }
.footer-bottom a:hover { color: var(--szy-gold); }
.footer-disclaimer {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.35);
    max-width: 600px;
    margin: 0.5rem auto 0;
    line-height: 1.5;
}
.footer-report-link {
    color: rgba(255,255,255,0.5);
    font-size: 0.8rem;
    border: 1px solid rgba(255,255,255,0.2);
    padding: 2px 10px;
    border-radius: 12px;
    transition: all 0.25s;
}
.footer-report-link:hover { color: var(--szy-gold); border-color: var(--szy-gold); }
.ga-beian { font-size: 0.8rem; }

/* ===== 主体内容 ===== */
.site-main { min-height: calc(100vh - 200px); }

/* ===== 表单 ===== */
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-weight: 600; color: var(--szy-text); }
.form-control {
    width: 100%; padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb; border-radius: 8px;
    font-size: 1rem; transition: border-color 0.3s;
    background: #fff;
}
.form-control:focus { outline: none; border-color: var(--szy-red); }
textarea.form-control { min-height: 120px; resize: vertical; }

/* ===== 提示信息 ===== */
.alert { padding: 1rem 1.5rem; border-radius: 8px; margin-bottom: 1.5rem; }
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-info { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }
.alert-warning { background: #FEF3C7; color: #92400E; border: 1px solid #FDE68A; }

/* ===== 占位页面样式 ===== */
.placeholder-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 2rem;
}
.placeholder-content h1 { font-size: 2rem; color: var(--szy-text); margin-bottom: 1rem; }
.placeholder-content p { color: var(--szy-text-light); font-size: 1.1rem; margin-bottom: 2rem; }
.placeholder-icon { font-size: 4rem; margin-bottom: 1rem; }

/* ===== 网格布局 ===== */
.grid { display: grid; gap: 1.5rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===== 工具类 ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; } .mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; } .mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; } .mb-4 { margin-bottom: 2rem; }
.hidden { display: none; }

/* ===== 动画 ===== */
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn 0.6s ease-out; }
@keyframes slideIn { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: translateX(0); } }
.slide-in { animation: slideIn 0.6s ease-out; }

/* ===== 响应式 — 平板 ===== */
@media (max-width: 768px) {
    .container { padding: 0 1rem; }
    .section { padding: 3rem 0; }
    .section-title { font-size: 1.75rem; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
    .footer-brand { grid-column: 1 / -1; }

    /* 手机端导航 */
    .site-header .main-nav { display: none; }
    .site-header .main-nav.active {
        display: block;
        position: absolute;
        top: 64px; left: 0; right: 0;
        background: var(--szy-warm-bg);
        box-shadow: 0 8px 20px rgba(0,0,0,0.1);
        padding: 12px 16px;
        z-index: 999;
    }
    .site-header .main-nav.active .nav-list { flex-direction: column; }
    .site-header .nav-item a { padding: 12px 16px; font-size: 1rem; }
    .mobile-menu-toggle { display: flex; }
    .mobile-header-auth { display: flex; }

    .navbar-menu {
        display: none;
        position: absolute;
        top: 64px; left: 0; right: 0;
        background: var(--szy-warm-bg);
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        z-index: 999;
    }
    .navbar-menu.active { display: flex; }
    .navbar-menu li { margin-bottom: 0.5rem; }
    .navbar-menu a { display: block; padding: 0.75rem 1rem; border-radius: 8px; }
    .navbar-menu a:hover, .navbar-menu a.active { background: var(--szy-cream); }
    .navbar-toggle { display: block; }
}

/* ===== 响应式 — 手机 ===== */
@media (max-width: 480px) {
    .section-title { font-size: 1.5rem; }
    .footer-grid { grid-template-columns: 1fr; }
    .card { padding: 1.5rem; }
    .btn-large { padding: 0.75rem 1.5rem; font-size: 1rem; }
}

/* ===== 桌面端隐藏移动端元素 ===== */
@media (min-width: 769px) {
    .mobile-header-auth { display: none; }
}