/**
 * common-styles.css - 华溪AI影视6.0 公共样式
 * 所有前端页面共享的基础样式、变量、导航、登录系统等
 */

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

:root {
    --bg-deep: #05050a;
    --bg-card: #0c0c16;
    --bg-card2: #10101e;
    --gold: #c9a23c;
    --gold-light: #e8cc7a;
    --gold-dim: #7a5e22;
    --purple: #8b5cf6;
    --purple-light: #a78bfa;
    --purple-dim: #5b3fa6;
    --text-primary: #eeeef2;
    --text-secondary: #8888a0;
    --text-dim: #44445a;
    --border: #1a1a30;
}

body {
    font-family: 'Noto Sans SC', -apple-system, sans-serif;
    background: var(--bg-deep);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* 导航 */
nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 200;
    padding: 20px 60px;
    display: flex; justify-content: space-between; align-items: center;
    background: rgba(5, 5, 10, 0.92);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(201, 162, 60, 0.08);
}

.nav-logo { font-size: 20px; font-weight: 900; color: var(--gold); letter-spacing: 3px; }
.nav-logo span { color: var(--text-dim); font-weight: 400; font-size: 13px; margin-left: 10px; }

.nav-back {
    color: var(--text-secondary); text-decoration: none; font-size: 14px;
    display: flex; align-items: center; gap: 8px; transition: color 0.3s;
}
.nav-back:hover { color: var(--gold-light); }

/* 右上角登录状态 */
.nav-user {
    display: flex; align-items: center; gap: 16px;
}
.nav-username {
    font-size: 13px; color: var(--gold-light);
    font-weight: 600;
}
.nav-logout {
    font-size: 12px; color: var(--text-dim);
    background: none; border: 1px solid var(--border);
    padding: 6px 14px; border-radius: 8px;
    cursor: pointer; transition: all 0.3s;
}
.nav-logout:hover {
    color: var(--text-secondary);
    border-color: rgba(201,162,60,0.3);
}
/* 导航右侧区域 */
.nav-right {
    display: flex; align-items: center; gap: 16px;
}
.nav-login-btn {
    font-size: 13px; color: var(--purple-light);
    background: rgba(139,92,246,0.08);
    border: 1px solid rgba(139,92,246,0.2);
    padding: 6px 18px; border-radius: 8px;
    cursor: pointer; transition: all 0.3s;
    font-weight: 600;
}
.nav-login-btn:hover {
    background: rgba(139,92,246,0.15);
    border-color: rgba(139,92,246,0.4);
}

/* 免费体验次数提示 */
.free-counter {
    font-size: 13px; color: var(--gold);
    background: rgba(201,162,60,0.08);
    border: 1px solid rgba(201,162,60,0.15);
    padding: 6px 16px; border-radius: 8px;
    white-space: nowrap;
}
.free-counter.zero {
    color: #ef4444;
    background: rgba(239,68,68,0.08);
    border-color: rgba(239,68,68,0.15);
}

/* 会员等级徽章 */
.member-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 6px;
    font-size: 11px; font-weight: 700;
    letter-spacing: 1px;
}
.member-badge.normal { background: rgba(136,136,160,0.1); color: #888; border: 1px solid rgba(136,136,160,0.2); }
.member-badge.vip { background: rgba(201,162,60,0.1); color: var(--gold); border: 1px solid rgba(201,162,60,0.2); }
.member-badge.svip { background: rgba(139,92,246,0.1); color: var(--purple-light); border: 1px solid rgba(139,92,246,0.2); }
.member-badge.honor { background: rgba(239,68,68,0.1); color: #f87171; border: 1px solid rgba(239,68,68,0.2); }
.member-badge.admin { background: rgba(240,208,96,0.1); color: var(--gold-light); border: 1px solid rgba(240,208,96,0.2); }

/* 分享赚次数按钮 */
.share-btn {
    font-size: 12px; color: #f0d060; font-weight: 600;
    background: rgba(201,162,60,0.08);
    border: 1px solid rgba(201,162,60,0.2);
    padding: 5px 14px; border-radius: 8px;
    cursor: pointer; transition: all 0.3s;
    display: inline-flex; align-items: center; gap: 4px;
    text-decoration: none;
}
.share-btn:hover {
    background: rgba(201,162,60,0.15);
    border-color: rgba(201,162,60,0.4);
}

/* ===== 登录系统 ===== */
.login-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-deep);
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
.login-overlay.hidden {
    opacity: 0; visibility: hidden; pointer-events: none;
}

.login-card {
    width: 100%; max-width: 440px;
    padding: 56px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 28px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* 登录卡片光效 */
.login-card::before {
    content: '';
    position: absolute; top: -2px; left: -2px; right: -2px; bottom: -2px;
    border-radius: 30px;
    background: linear-gradient(135deg, var(--gold), var(--purple), var(--gold));
    background-size: 400% 400%;
    z-index: -1;
    animation: border-glow 6s ease infinite;
    opacity: 0.4;
}
@keyframes border-glow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.login-card::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 60%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(201,162,60,0.04), transparent);
    animation: sweep 4s ease-in-out infinite;
}
@keyframes sweep {
    0% { left: -60%; }
    100% { left: 120%; }
}

.login-logo {
    font-size: 28px; font-weight: 900;
    color: var(--gold); letter-spacing: 4px;
    margin-bottom: 8px;
}
.login-sub {
    font-size: 13px; color: var(--text-dim);
    margin-bottom: 40px; letter-spacing: 2px;
}

.login-form { text-align: left; }

.login-field {
    margin-bottom: 24px;
}
.login-field label {
    display: block;
    font-size: 13px; font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
    letter-spacing: 1px;
}
.login-field input {
    width: 100%;
    padding: 16px 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 14px;
    color: var(--text-primary);
    font-size: 15px; font-family: inherit;
    outline: none;
    transition: all 0.3s;
}
.login-field input::placeholder { color: var(--text-dim); }
.login-field input:focus {
    border-color: rgba(139, 92, 246, 0.4);
    background: rgba(255,255,255,0.05);
}

.login-btn {
    width: 100%;
    padding: 18px;
    margin-top: 12px;
    background: linear-gradient(135deg, var(--purple-light), var(--purple));
    color: #fff; font-size: 16px; font-weight: 700;
    border: none; border-radius: 14px; cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 2px;
    position: relative; overflow: hidden;
}
.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(139,92,246,0.35);
}
.login-btn:active { transform: translateY(0); }

.login-hint {
    margin-top: 28px;
    font-size: 12px; color: var(--text-dim);
    line-height: 1.8;
}
.login-hint a {
    color: var(--purple-light); text-decoration: none;
}
.login-hint a:hover { text-decoration: underline; }

/* 登录/注册 切换标签 */
.auth-tabs {
    display: flex; gap: 0;
    margin-bottom: 28px;
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
    padding: 4px;
}
.auth-tab {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 14px; font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 2px;
}
.auth-tab.active {
    background: linear-gradient(135deg, var(--purple-light), var(--purple));
    color: #fff;
    box-shadow: 0 4px 16px rgba(139,92,246,0.3);
}
.auth-tab:not(.active):hover {
    color: var(--text-secondary);
}
.register-form { text-align: left; }
.reg-btn {
    background: linear-gradient(135deg, var(--gold-light), var(--gold)) !important;
    color: var(--bg-deep) !important;
}
.reg-btn:hover {
    box-shadow: 0 12px 40px rgba(201,162,60,0.35) !important;
}

.login-error {
    color: #ef4444;
    font-size: 13px;
    margin-top: 12px;
    min-height: 20px;
    text-align: center;
}
.login-success {
    color: #22c55e;
    font-size: 13px;
    margin-top: 12px;
    min-height: 20px;
    text-align: center;
}

/* 短信验证码行 */
.sms-row {
    display: flex; gap: 12px;
}
.sms-row input { flex: 1; }
.sms-btn {
    padding: 16px 20px;
    background: rgba(201,162,60,0.08);
    border: 1px solid rgba(201,162,60,0.2);
    color: var(--gold);
    font-size: 14px; font-weight: 600;
    border-radius: 14px; cursor: pointer;
    white-space: nowrap; transition: all 0.3s;
}
.sms-btn:hover { background: rgba(201,162,60,0.15); }
.sms-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.login-hint-row {
    display: flex; justify-content: space-between;
    font-size: 12px; margin-top: 8px;
}
.login-hint-row a {
    color: var(--purple-light); text-decoration: none;
}
.login-hint-row a:hover { text-decoration: underline; }

/* 升级引导弹窗 */
.upgrade-prompt {
    margin-top: 16px; padding: 16px;
    background: rgba(201,162,60,0.05);
    border: 1px solid rgba(201,162,60,0.15);
    border-radius: 12px;
    text-align: center;
}
.upgrade-prompt p {
    font-size: 13px; color: var(--text-secondary);
    margin-bottom: 12px;
}
.btn-upgrade-mini {
    padding: 8px 24px;
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: var(--bg-deep);
    font-size: 13px; font-weight: 700;
    border: none; border-radius: 8px; cursor: pointer;
    transition: all 0.3s;
}
.btn-upgrade-mini:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(201,162,60,0.3);
}

/* Footer */
footer {
    text-align: center; padding: 40px;
    color: var(--text-dim); font-size: 13px;
    letter-spacing: 1px; position: relative; z-index: 1;
}
footer .brand { color: var(--gold); font-weight: 700; }

/* ===== 手机端适配 ===== */
@media (max-width: 768px) {
    nav {
        padding: 12px 16px !important;
    }
    .nav-logo {
        font-size: 15px !important;
    }
    .nav-links {
        gap: 12px !important;
    }
    .nav-links a {
        font-size: 12px !important;
    }

    .nav-user { gap: 8px !important; }
    .nav-username { font-size: 12px !important; }
    .nav-logout { padding: 4px 10px !important; font-size: 11px !important; }
    .auth-tabs { margin-bottom: 20px !important; }
    .auth-tab { font-size: 13px !important; padding: 10px !important; }
    .nav-right { gap: 8px !important; }
    .nav-login-btn { padding: 4px 12px !important; font-size: 12px !important; }
    .free-counter { font-size: 11px !important; padding: 4px 10px !important; }

    /* 登录手机适配 */
    .login-card {
        margin: 16px;
        padding: 40px 24px !important;
        border-radius: 20px !important;
    }
    .login-logo { font-size: 22px !important; }
    .login-sub { font-size: 12px !important; margin-bottom: 28px !important; }
    .login-field input {
        padding: 14px 16px !important;
        font-size: 14px !important;
    }
    .login-btn {
        padding: 16px !important;
        font-size: 15px !important;
    }
    .login-hint { font-size: 11px !important; }

    footer {
        padding: 28px 16px !important;
        font-size: 11px !important;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 22px !important; }
}