/*
Theme Name: 石城岛旅游攻略
Theme URI: https://iidao.com
Author: Happy花椒
Author URI: https://quhj.com
Description: 石城岛旅游攻略门户网站主题，集成和风天气API，支持潮汐查询、航班时刻表、旅游攻略等功能。沉浸式海岛旅游门户风格 v3.0
Version: 3.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Tags: travel, island, weather, portal, responsive
Text Domain: iidao
*/

/* ========== 设计变量 ========== */
:root {
    --iidao-primary-900: #051e34;
    --iidao-primary-800: #0a3d62;
    --iidao-primary-700: #144e7a;
    --iidao-primary-600: #1e6091;
    --iidao-primary-500: #2d82b7;
    --iidao-primary-400: #3a9fd4;
    --iidao-primary-300: #74b9e0;
    --iidao-primary-200: #a8d4ea;
    --iidao-primary-100: #d6eaf5;
    --iidao-primary-50: #eef6fb;
    
    --iidao-accent-600: #d35400;
    --iidao-accent-500: #e67e22;
    --iidao-accent-400: #f39c12;
    --iidao-accent-300: #f5b041;
    --iidao-accent-100: #fef5e7;
    
    --iidao-gray-900: #0f172a;
    --iidao-gray-800: #1e293b;
    --iidao-gray-700: #334155;
    --iidao-gray-600: #475569;
    --iidao-gray-500: #64748b;
    --iidao-gray-400: #94a3b8;
    --iidao-gray-300: #cbd5e1;
    --iidao-gray-200: #e2e8f0;
    --iidao-gray-100: #f1f5f9;
    --iidao-gray-50: #f8fafc;
    
    --iidao-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --iidao-shadow: 0 4px 6px -1px rgba(10, 61, 98, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --iidao-shadow-md: 0 10px 20px -3px rgba(10, 61, 98, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --iidao-shadow-lg: 0 20px 40px -8px rgba(10, 61, 98, 0.15), 0 8px 16px -8px rgba(0, 0, 0, 0.08);
    --iidao-shadow-xl: 0 30px 60px -15px rgba(10, 61, 98, 0.2);
    
    --iidao-radius-sm: 8px;
    --iidao-radius: 14px;
    --iidao-radius-md: 18px;
    --iidao-radius-lg: 24px;
    --iidao-radius-xl: 32px;
    
    --iidao-transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --iidao-transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== 基础重置 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--iidao-gray-700);
    background-color: var(--iidao-gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--iidao-transition); }
a:hover { color: var(--iidao-primary-600); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.25;
    color: var(--iidao-gray-900);
    letter-spacing: -0.3px;
}

/* ========== 滚动入场动画 ========== */
.iidao-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}
.iidao-reveal.iidao-revealed { opacity: 1; transform: translateY(0); }
.iidao-reveal-delay-1 { transition-delay: 0.1s; }
.iidao-reveal-delay-2 { transition-delay: 0.2s; }
.iidao-reveal-delay-3 { transition-delay: 0.3s; }
.iidao-reveal-delay-4 { transition-delay: 0.4s; }
.iidao-reveal-delay-5 { transition-delay: 0.5s; }
.iidao-reveal-delay-6 { transition-delay: 0.6s; }

/* ========== 容器布局 ========== */
.iidao-container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

.iidao-section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.iidao-section-title { text-align: center; margin-bottom: 70px; position: relative; }

.iidao-section-title h2 {
    font-size: 44px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--iidao-primary-800) 0%, var(--iidao-primary-500) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 18px;
    letter-spacing: -1px;
    display: inline-block;
    position: relative;
}

.iidao-section-title h2::after {
    content: '';
    position: absolute;
    bottom: -14px;
    left: 50%;
    transform: translateX(-50%);
    width: 72px;
    height: 5px;
    background: linear-gradient(90deg, var(--iidao-primary-400), var(--iidao-accent-400));
    border-radius: 3px;
}

.iidao-section-title p {
    font-size: 18px;
    color: var(--iidao-gray-500);
    margin-top: 20px;
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* 波浪分隔 */
.iidao-wave-divider { position: absolute; bottom: -1px; left: 0; width: 100%; line-height: 0; z-index: 2; }
.iidao-wave-divider svg { width: 100%; height: 80px; display: block; }
.iidao-wave-divider-top { position: absolute; top: -1px; left: 0; width: 100%; line-height: 0; z-index: 2; transform: rotate(180deg); }
.iidao-wave-divider-top svg { width: 100%; height: 80px; display: block; }

/* 装饰气泡 */
.iidao-bubble {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.8), rgba(45, 130, 183, 0.1));
    pointer-events: none;
    animation: iidao-float 8s ease-in-out infinite;
}
@keyframes iidao-float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* ========== 头部导航 ========== */
.iidao-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.4);
    transition: var(--iidao-transition);
}
.iidao-header.scrolled { background: rgba(255, 255, 255, 0.95); box-shadow: 0 4px 30px rgba(10, 61, 98, 0.08); }

.iidao-header-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.iidao-logo { display: flex; align-items: center; gap: 14px; }
.iidao-logo img { height: 50px; width: auto; }

.iidao-logo-text {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--iidao-primary-700), var(--iidao-primary-500), var(--iidao-accent-400));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.5px;
    animation: iidao-gradient-shift 6s ease infinite;
}
@keyframes iidao-gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.iidao-nav ul { display: flex; gap: 6px; align-items: center; }

.iidao-nav a {
    font-size: 15px;
    font-weight: 600;
    color: var(--iidao-gray-700);
    padding: 10px 20px;
    border-radius: 50px;
    transition: var(--iidao-transition);
}
.iidao-nav a:hover { color: var(--iidao-primary-600); background: var(--iidao-primary-50); }
.iidao-nav .current-menu-item a { color: var(--iidao-primary-600); background: var(--iidao-primary-50); }

/* ========== 首屏大屏 ========== */
.iidao-hero { position: relative; height: 100vh; min-height: 720px; overflow: hidden; }

.iidao-hero-video {
    position: absolute;
    top: 50%; left: 50%;
    min-width: 100%; min-height: 100%;
    width: auto; height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 1;
}

.iidao-hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(243, 156, 18, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(45, 130, 183, 0.3) 0%, transparent 50%),
        linear-gradient(180deg, rgba(5, 30, 52, 0.4) 0%, rgba(10, 61, 98, 0.55) 40%, rgba(5, 30, 52, 0.75) 100%);
    z-index: 2;
}

/* 粒子光点 */
.iidao-hero-particles { position: absolute; top: 0; left: 0; right: 0; bottom: 0; z-index: 2; pointer-events: none; overflow: hidden; }
.iidao-particle {
    position: absolute;
    width: 4px; height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    animation: iidao-particle-float 10s ease-in-out infinite;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}
@keyframes iidao-particle-float {
    0%, 100% { transform: translateY(0) translateX(0); opacity: 0.3; }
    50% { transform: translateY(-100px) translateX(30px); opacity: 0.8; }
}

.iidao-hero-content {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #fff;
    padding-top: 140px;
}

.iidao-hero-title {
    font-size: 64px;
    font-weight: 900;
    margin-bottom: 22px;
    letter-spacing: 3px;
    background: linear-gradient(180deg, #ffffff 0%, #a8d4ea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
    animation: iidao-fade-up 1.2s cubic-bezier(0.4, 0, 0.2, 1) both;
    line-height: 1.15;
}

.iidao-hero-subtitle {
    font-size: 19px;
    margin-bottom: 52px;
    opacity: 0.9;
    letter-spacing: 2px;
    font-weight: 300;
    animation: iidao-fade-up 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

.iidao-hero-search {
    width: 100%;
    max-width: 680px;
    animation: iidao-fade-up 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.6s both;
}

@keyframes iidao-fade-up {
    from { opacity: 0; transform: translateY(50px); }
    to { opacity: 1; transform: translateY(0); }
}

.iidao-search-form {
    display: flex;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 60px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    transition: var(--iidao-transition);
}
.iidao-search-form:focus-within {
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.35), 0 0 0 4px rgba(243, 156, 18, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}
.iidao-search-form input[type="text"] {
    flex: 1;
    padding: 22px 32px;
    border: none;
    outline: none;
    font-size: 16px;
    background: transparent;
    color: var(--iidao-gray-800);
    font-weight: 500;
}
.iidao-search-form input[type="text"]::placeholder { color: var(--iidao-gray-500); }

.iidao-search-form button {
    padding: 0 44px;
    background: linear-gradient(135deg, var(--iidao-accent-500), var(--iidao-accent-400));
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    transition: var(--iidao-transition);
    position: relative;
    overflow: hidden;
    letter-spacing: 1px;
}
.iidao-search-form button::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}
.iidao-search-form button:hover::before { left: 100%; }
.iidao-search-form button:hover {
    background: linear-gradient(135deg, var(--iidao-accent-600), var(--iidao-accent-500));
    box-shadow: 0 8px 25px rgba(230, 126, 34, 0.4);
    transform: scale(1.02);
}

/* 向下滚动提示 */
.iidao-scroll-hint {
    position: absolute;
    bottom: 40px; left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    animation: iidao-scroll-bounce 2s ease-in-out infinite;
    animation-delay: 1.5s;
    opacity: 0;
}
@keyframes iidao-scroll-bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.7; }
    50% { transform: translateX(-50%) translateY(12px); opacity: 1; }
}
.iidao-scroll-hint span { display: block; font-size: 13px; letter-spacing: 2px; margin-bottom: 10px; text-transform: uppercase; }
.iidao-scroll-hint-arrow {
    width: 24px; height: 24px;
    margin: 0 auto;
    border-right: 2px solid rgba(255, 255, 255, 0.7);
    border-bottom: 2px solid rgba(255, 255, 255, 0.7);
    transform: rotate(45deg);
}

/* ========== 潮汐天气区块 ========== */
.iidao-weather-section {
    background: linear-gradient(180deg, var(--iidao-primary-50) 0%, #ffffff 100%);
    position: relative;
}
.iidao-weather-section::before {
    content: '';
    position: absolute;
    top: 10%; right: -100px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(45, 130, 183, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.iidao-weather-date {
    text-align: center;
    font-size: 17px;
    color: var(--iidao-gray-500);
    margin-bottom: 36px;
    font-weight: 500;
    letter-spacing: 1px;
}

.iidao-card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

/* 潮汐卡片 - 时间为主 */
.iidao-tide-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 32px 24px 28px;
    text-align: center;
    transition: var(--iidao-transition-slow);
    box-shadow: 0 4px 20px rgba(10, 61, 98, 0.06);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(45, 130, 183, 0.08);
}
.iidao-tide-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--iidao-primary-400), var(--iidao-primary-200));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.iidao-tide-card::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(45, 130, 183, 0.04), transparent);
    transition: left 0.8s ease;
    pointer-events: none;
}
.iidao-tide-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 36px rgba(10, 61, 98, 0.1);
    border-color: var(--iidao-primary-200);
}
.iidao-tide-card:hover::before { transform: scaleX(1); }
.iidao-tide-card:hover::after { left: 100%; }

.iidao-tide-type {
    font-size: 14px;
    color: var(--iidao-primary-500);
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.iidao-tide-time {
    font-size: 48px;
    font-weight: 800;
    color: var(--iidao-primary-800);
    margin-bottom: 16px;
    font-variant-numeric: tabular-nums;
    letter-spacing: -1px;
    line-height: 1.1;
}

.iidao-tide-height {
    font-size: 16px;
    color: var(--iidao-gray-500);
    font-weight: 500;
    padding-top: 12px;
    border-top: 1px solid #f0f5f9;
}

/* 天气卡片 */
.iidao-weather-card {
    background: #fff;
    border-radius: var(--iidao-radius-md);
    padding: 36px 24px;
    text-align: center;
    transition: var(--iidao-transition-slow);
    box-shadow: var(--iidao-shadow);
    border: 1px solid var(--iidao-gray-200);
    position: relative;
    overflow: hidden;
}
.iidao-weather-card::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(45, 130, 183, 0.05), transparent);
    transition: left 0.8s ease;
    pointer-events: none;
}
.iidao-weather-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--iidao-shadow-lg);
    border-color: var(--iidao-primary-200);
}
.iidao-weather-card:hover::after { left: 100%; }

.iidao-weather-day {
    font-size: 14px;
    color: var(--iidao-gray-500);
    margin-bottom: 18px;
    font-weight: 600;
}
.iidao-weather-icon {
    font-size: 64px;
    margin-bottom: 18px;
    line-height: 1;
    filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.1));
    transition: transform 0.4s ease;
}
.iidao-weather-card:hover .iidao-weather-icon { transform: scale(1.15); }
.iidao-weather-temp {
    font-size: 32px;
    font-weight: 800;
    color: var(--iidao-primary-800);
    margin-bottom: 10px;
    font-variant-numeric: tabular-nums;
    letter-spacing: -1px;
}
.iidao-weather-desc {
    font-size: 14px;
    color: var(--iidao-gray-600);
    font-weight: 500;
}

/* 指数卡片 */
.iidao-index-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.iidao-index-card {
    background: #fff;
    border-radius: var(--iidao-radius-md);
    padding: 36px 24px;
    text-align: center;
    transition: var(--iidao-transition-slow);
    box-shadow: var(--iidao-shadow);
    border: 1px solid var(--iidao-gray-200);
    position: relative;
    overflow: hidden;
}
.iidao-index-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--iidao-shadow-lg);
    border-color: var(--iidao-accent-300);
}
.iidao-index-icon {
    width: 72px; height: 72px;
    margin: 0 auto 22px;
    background: linear-gradient(135deg, var(--iidao-primary-100), var(--iidao-primary-200));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    transition: var(--iidao-transition-slow);
}
.iidao-index-card:hover .iidao-index-icon {
    transform: scale(1.1) rotate(-8deg);
    background: linear-gradient(135deg, var(--iidao-accent-100), var(--iidao-accent-300));
    box-shadow: 0 8px 20px rgba(243, 156, 18, 0.25);
}
.iidao-index-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--iidao-gray-800);
    margin-bottom: 10px;
}
.iidao-index-level {
    font-size: 14px;
    color: var(--iidao-accent-500);
    font-weight: 700;
    background: var(--iidao-accent-100);
    display: inline-block;
    padding: 6px 20px;
    border-radius: 20px;
}

/* ========== 航班时刻表 ========== */
.iidao-ferry-section {
    background: linear-gradient(180deg, #ffffff 0%, var(--iidao-gray-100) 100%);
    position: relative;
}

.iidao-ferry-notice {
    background: linear-gradient(135deg, #fef9e7, #fdebd0);
    border: 1px solid #f9e79f;
    color: #7d6608;
    padding: 20px 36px;
    border-radius: var(--iidao-radius);
    text-align: center;
    margin-bottom: 44px;
    font-weight: 600;
    font-size: 15px;
    box-shadow: var(--iidao-shadow-sm);
}
.iidao-ferry-notice.iidao-ferry-suspended {
    background: linear-gradient(135deg, #fdedec, #fadbd8);
    border-color: #f5b7b1;
    color: #922b21;
}

.iidao-ferry-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    margin-bottom: 40px;
}

.iidao-ferry-column {
    background: #fff;
    border-radius: var(--iidao-radius-lg);
    padding: 44px;
    box-shadow: var(--iidao-shadow-md);
    transition: var(--iidao-transition-slow);
    position: relative;
    overflow: hidden;
}
.iidao-ferry-column::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 6px; height: 100%;
    background: linear-gradient(180deg, var(--iidao-primary-500), var(--iidao-accent-400));
    border-radius: 6px 0 0 6px;
}
.iidao-ferry-column:hover {
    box-shadow: var(--iidao-shadow-xl);
    transform: translateY(-4px);
}
.iidao-ferry-column h3 {
    font-size: 24px;
    color: var(--iidao-primary-800);
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--iidao-primary-100);
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 12px;
}

.iidao-ferry-group { margin-bottom: 28px; }
.iidao-ferry-group:last-child { margin-bottom: 0; }
.iidao-ferry-group-title {
    font-size: 14px;
    color: var(--iidao-gray-600);
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.iidao-ferry-group-title::before {
    content: '';
    width: 10px; height: 10px;
    background: linear-gradient(135deg, var(--iidao-accent-400), var(--iidao-accent-500));
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(243, 156, 18, 0.4);
}

.iidao-ferry-list { display: flex; flex-wrap: wrap; gap: 12px; }
.iidao-ferry-time {
    background: linear-gradient(135deg, var(--iidao-primary-50), var(--iidao-primary-100));
    color: var(--iidao-primary-700);
    padding: 12px 22px;
    border-radius: var(--iidao-radius-sm);
    font-size: 16px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    transition: var(--iidao-transition);
    border: 1px solid var(--iidao-primary-200);
    position: relative;
    overflow: hidden;
}
.iidao-ferry-time::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}
.iidao-ferry-time:hover {
    background: linear-gradient(135deg, var(--iidao-primary-500), var(--iidao-primary-600));
    color: #fff;
    transform: translateY(-3px);
    box-shadow: var(--iidao-shadow-md);
    border-color: transparent;
}
.iidao-ferry-time:hover::after { left: 100%; }

.iidao-ferry-phones {
    text-align: center;
    font-size: 15px;
    color: var(--iidao-gray-600);
    padding-top: 32px;
    border-top: 1px dashed var(--iidao-gray-300);
    font-weight: 500;
}
.iidao-ferry-phones span { margin: 0 24px; }
.iidao-ferry-phones strong {
    color: var(--iidao-primary-600);
    font-weight: 700;
    font-size: 17px;
}

/* 通航状态标签 */
.iidao-section-title .iidao-ferry-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 20px;
    margin-left: 16px;
}
.iidao-section-title .iidao-ferry-status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    display: inline-block;
}
.iidao-section-title .iidao-ferry-status-normal {
    color: #27ae60;
    background: rgba(39, 174, 96, 0.08);
}
.iidao-section-title .iidao-ferry-status-normal .iidao-ferry-status-dot {
    background: #27ae60;
    box-shadow: 0 0 8px rgba(39, 174, 96, 0.5);
    animation: iidao-status-pulse 2s ease-in-out infinite;
}
.iidao-section-title .iidao-ferry-status-suspended {
    color: #e74c3c;
    background: rgba(231, 76, 60, 0.08);
}
.iidao-section-title .iidao-ferry-status-suspended .iidao-ferry-status-dot {
    background: #e74c3c;
    box-shadow: 0 0 8px rgba(231, 76, 60, 0.5);
    animation: iidao-status-pulse 2s ease-in-out infinite;
}
@keyframes iidao-status-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ========== 视频区块 ========== */
.iidao-video-section { background: #fff; position: relative; }
.iidao-video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.iidao-video-card {
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(10, 61, 98, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(45, 130, 183, 0.06);
}
.iidao-video-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(10, 61, 98, 0.15);
    border-color: rgba(45, 130, 183, 0.15);
}
.iidao-video-thumb {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
}
.iidao-video-thumb img,
.iidao-video-thumb-placeholder {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.iidao-video-thumb-placeholder {
    background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 50%, #0284c7 100%);
}
.iidao-video-card:hover .iidao-video-thumb img,
.iidao-video-card:hover .iidao-video-thumb-placeholder { transform: scale(1.08); }

.iidao-video-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(5, 30, 52, 0.7) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}
.iidao-video-card:hover .iidao-video-overlay { opacity: 1; }

.iidao-video-play-btn {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 64px; height: 64px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--iidao-accent-500);
    z-index: 2;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    opacity: 0;
}
.iidao-video-card:hover .iidao-video-play-btn {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    background: var(--iidao-accent-500);
    color: #fff;
    box-shadow: 0 12px 40px rgba(230, 126, 34, 0.5);
}
.iidao-video-duration {
    position: absolute;
    bottom: 12px; right: 12px;
    background: rgba(0, 0, 0, 0.75);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    z-index: 2;
}

.iidao-video-body { padding: 22px 24px 24px; }
.iidao-video-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--iidao-gray-900);
    margin-bottom: 14px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 51px;
}
.iidao-video-title a:hover { color: var(--iidao-primary-600); }
.iidao-video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--iidao-gray-500);
    font-weight: 500;
    padding-top: 14px;
    border-top: 1px solid var(--iidao-gray-100);
}

/* ========== 攻略区块 ========== */
.iidao-guide-section {
    background: linear-gradient(180deg, var(--iidao-gray-100) 0%, var(--iidao-primary-50) 100%);
    position: relative;
}
.iidao-guide-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.iidao-guide-item {
    background: #fff;
    border-radius: var(--iidao-radius-md);
    padding: 36px 32px;
    transition: var(--iidao-transition-slow);
    box-shadow: var(--iidao-shadow);
    border: 1px solid var(--iidao-gray-200);
    position: relative;
    overflow: hidden;
}
.iidao-guide-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 0;
    background: linear-gradient(180deg, var(--iidao-primary-500), var(--iidao-accent-400));
    border-radius: 4px 0 0 4px;
    transition: height 0.4s ease;
}
.iidao-guide-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--iidao-shadow-lg);
    border-color: var(--iidao-primary-200);
}
.iidao-guide-item:hover::before { height: 100%; }

.iidao-guide-item-num {
    display: inline-block;
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--iidao-primary-500), var(--iidao-primary-600));
    color: #fff;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 800;
    line-height: 36px;
    text-align: center;
    margin-bottom: 18px;
    transition: var(--iidao-transition);
}
.iidao-guide-item:hover .iidao-guide-item-num {
    background: linear-gradient(135deg, var(--iidao-accent-500), var(--iidao-accent-400));
    transform: rotate(-5deg) scale(1.1);
}
.iidao-guide-item-title {
    font-size: 19px;
    font-weight: 700;
    color: var(--iidao-gray-900);
    margin-bottom: 14px;
    line-height: 1.4;
}
.iidao-guide-item-title a:hover { color: var(--iidao-primary-600); }
.iidao-guide-item-excerpt {
    font-size: 14px;
    color: var(--iidao-gray-600);
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 18px;
}
.iidao-guide-item-meta {
    font-size: 13px;
    color: var(--iidao-gray-500);
    font-weight: 500;
    padding-top: 16px;
    border-top: 1px solid var(--iidao-gray-100);
    display: flex;
    justify-content: space-between;
}

/* ========== 风光区块 ========== */
.iidao-scenery-section { background: #fff; position: relative; }
.iidao-scenery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    grid-auto-rows: 300px;
}
.iidao-scenery-item {
    position: relative;
    border-radius: var(--iidao-radius-md);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--iidao-shadow);
    transition: var(--iidao-transition-slow);
}
.iidao-scenery-item:first-child { grid-column: span 2; grid-row: span 2; }
.iidao-scenery-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}
.iidao-scenery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--iidao-shadow-xl);
}
.iidao-scenery-item:hover img { transform: scale(1.12); }

.iidao-scenery-overlay {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    padding: 50px 32px 28px;
    background: linear-gradient(transparent, rgba(5, 30, 52, 0.9));
    color: #fff;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.iidao-scenery-item:hover .iidao-scenery-overlay {
    transform: translateY(0);
    opacity: 1;
}
.iidao-scenery-title { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.iidao-scenery-desc { font-size: 14px; opacity: 0.85; }

/* ========== 石城岛介绍 ========== */
.iidao-about-section {
    background: linear-gradient(180deg, var(--iidao-primary-50) 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}
.iidao-about-wrap {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    min-height: 520px;
}
.iidao-about-deco {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
}
.iidao-about-deco-1 {
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(243, 156, 18, 0.15) 0%, transparent 70%);
    top: -40px; right: 20%;
}
.iidao-about-deco-2 {
    width: 150px; height: 150px;
    background: radial-gradient(circle, rgba(45, 130, 183, 0.12) 0%, transparent 70%);
    bottom: -30px; left: 10%;
}
.iidao-about-image {
    position: absolute;
    top: 0; right: 0;
    width: 70%; height: 100%;
    border-radius: 28px;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(10, 61, 98, 0.2);
    z-index: 1;
}
.iidao-about-image img,
.iidao-about-img-placeholder {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}
.iidao-about-wrap:hover .iidao-about-image img,
.iidao-about-wrap:hover .iidao-about-img-placeholder { transform: scale(1.05); }
.iidao-about-img-placeholder {
    background: linear-gradient(135deg, #0c4a6e, #0369a1, #0284c7);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 28px;
    font-weight: 700;
}

.iidao-about-card {
    position: relative;
    z-index: 2;
    width: 48%;
    margin-top: 60px;
    background: #fff;
    border-radius: 24px;
    padding: 48px 44px;
    box-shadow: 0 25px 70px rgba(10, 61, 98, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.iidao-about-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 35px 90px rgba(10, 61, 98, 0.25);
}
.iidao-about-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--iidao-accent-600);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
}
.iidao-about-tag-dot {
    width: 8px; height: 8px;
    background: var(--iidao-accent-500);
    border-radius: 50%;
    animation: iidao-pulse 2s ease-in-out infinite;
}
@keyframes iidao-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}
.iidao-about-title {
    font-size: 38px;
    font-weight: 800;
    color: var(--iidao-gray-900);
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -1px;
}
.iidao-about-text {
    font-size: 15px;
    color: var(--iidao-gray-600);
    line-height: 1.9;
    margin-bottom: 32px;
}
.iidao-about-text p { margin-bottom: 14px; }
.iidao-about-text p:last-child { margin-bottom: 0; }

.iidao-about-stats {
    display: flex;
    gap: 32px;
    padding-top: 28px;
    border-top: 1px solid var(--iidao-gray-100);
}
.iidao-about-stat-num {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--iidao-primary-600), var(--iidao-accent-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 6px;
}
.iidao-about-stat-label {
    font-size: 13px;
    color: var(--iidao-gray-500);
    font-weight: 500;
}

/* ========== 底部 ========== */
.iidao-footer,
.iidao-footer-main {
    background: var(--iidao-primary-900);
    color: #fff;
    padding: 90px 0 0;
    position: relative;
    overflow: hidden;
}
.iidao-footer::before,
.iidao-footer-main::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--iidao-primary-500), var(--iidao-accent-400), var(--iidao-primary-500));
    background-size: 200% 100%;
    animation: iidao-gradient-shift 8s linear infinite;
}
.iidao-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--iidao-primary-500), var(--iidao-accent-400), var(--iidao-primary-500));
    background-size: 200% 100%;
    animation: iidao-gradient-shift 8s linear infinite;
}
.iidao-footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: 60px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.iidao-footer-col h4 {
    font-size: 18px;
    margin-bottom: 30px;
    font-weight: 700;
    color: #fff;
    position: relative;
    padding-bottom: 14px;
}
.iidao-footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 40px; height: 3px;
    background: linear-gradient(90deg, var(--iidao-accent-400), var(--iidao-accent-500));
    border-radius: 2px;
}
.iidao-footer-col ul li { margin-bottom: 16px; }
.iidao-footer-col ul li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    transition: var(--iidao-transition);
    display: inline-block;
    font-weight: 500;
}
.iidao-footer-col ul li a:hover {
    color: var(--iidao-accent-400);
    padding-left: 8px;
}
.iidao-footer-about-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 2;
    margin-top: 8px;
}
.iidao-footer-tech img {
    max-width: 140px;
    height: auto;
    display: block;
    transition: opacity 0.3s ease;
}
.iidao-footer-tech a:hover img { opacity: 0.8; }

.iidao-footer-bottom {
    background: #05192a;
    padding: 32px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    line-height: 2.2;
}
.iidao-footer-bottom a {
    color: rgba(255, 255, 255, 0.4);
    transition: var(--iidao-transition);
}
.iidao-footer-bottom a:hover { color: var(--iidao-accent-400); }
.iidao-footer-bottom p { margin: 4px 0; }

/* ========== 文章页 ========== */
.iidao-single-section {
    padding: 140px 0 100px;
    background: var(--iidao-gray-50);
}
.iidao-single-wrap { max-width: 860px; margin: 0 auto; }
.iidao-single-main {
    background: #fff;
    border-radius: var(--iidao-radius-lg);
    padding: 70px 80px;
    box-shadow: var(--iidao-shadow-md);
}
.iidao-single-title {
    font-size: 38px;
    font-weight: 800;
    color: var(--iidao-gray-900);
    margin-bottom: 28px;
    line-height: 1.3;
}
.iidao-single-meta {
    display: flex;
    gap: 28px;
    padding-bottom: 32px;
    margin-bottom: 44px;
    border-bottom: 1px solid var(--iidao-gray-200);
    font-size: 14px;
    color: var(--iidao-gray-500);
    font-weight: 500;
}
.iidao-single-content {
    font-size: 17px;
    line-height: 2.1;
    color: var(--iidao-gray-700);
}
.iidao-single-content p { margin-bottom: 28px; }
.iidao-single-content h2 {
    font-size: 28px;
    margin: 50px 0 24px;
    color: var(--iidao-primary-800);
    font-weight: 700;
}
.iidao-single-content h3 {
    font-size: 23px;
    margin: 40px 0 18px;
    color: var(--iidao-gray-800);
    font-weight: 600;
}
.iidao-single-content img {
    border-radius: var(--iidao-radius);
    margin: 36px 0;
    box-shadow: var(--iidao-shadow-md);
}

/* ========== 归档/栏目页 ========== */
.iidao-archive-section {
    padding: 140px 0 100px;
    background: var(--iidao-gray-50);
}
.iidao-archive-header { text-align: center; margin-bottom: 70px; }
.iidao-archive-title {
    font-size: 46px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--iidao-primary-800), var(--iidao-primary-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}
.iidao-archive-desc { font-size: 18px; color: var(--iidao-gray-500); }
.iidao-archive-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 70px;
}
.iidao-pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
}
.iidao-pagination .page-numbers {
    padding: 14px 22px;
    background: #fff;
    border-radius: var(--iidao-radius-sm);
    color: var(--iidao-gray-600);
    font-size: 14px;
    font-weight: 600;
    box-shadow: var(--iidao-shadow-sm);
    transition: var(--iidao-transition);
    border: 1px solid var(--iidao-gray-200);
}
.iidao-pagination .page-numbers:hover,
.iidao-pagination .current {
    background: linear-gradient(135deg, var(--iidao-primary-600), var(--iidao-primary-500));
    color: #fff;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: var(--iidao-shadow-md);
}

/* ========== 搜索页 ========== */
.iidao-search-section {
    padding: 140px 0 100px;
    background: var(--iidao-gray-50);
}
.iidao-search-header { text-align: center; margin-bottom: 70px; }
.iidao-search-title {
    font-size: 40px;
    font-weight: 800;
    color: var(--iidao-primary-800);
    margin-bottom: 16px;
}
.iidao-no-results {
    text-align: center;
    padding: 100px 80px;
    background: #fff;
    border-radius: var(--iidao-radius-lg);
    box-shadow: var(--iidao-shadow-md);
}
.iidao-no-results h3 { font-size: 28px; color: var(--iidao-gray-800); margin-bottom: 18px; }
.iidao-no-results p { color: var(--iidao-gray-600); margin-bottom: 44px; font-size: 16px; }

/* ========== 404页面 ========== */
.iidao-404-section {
    padding: 200px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--iidao-primary-50), var(--iidao-gray-50));
}
.iidao-404-code {
    font-size: 160px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--iidao-primary-600), var(--iidao-accent-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
    line-height: 1;
}
.iidao-404-title { font-size: 34px; color: var(--iidao-gray-800); margin-bottom: 16px; font-weight: 700; }
.iidao-404-desc { color: var(--iidao-gray-600); margin-bottom: 56px; font-size: 18px; }

.iidao-btn {
    display: inline-block;
    padding: 18px 52px;
    background: linear-gradient(135deg, var(--iidao-accent-500), var(--iidao-accent-400));
    color: #fff;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    transition: var(--iidao-transition);
    box-shadow: 0 6px 20px rgba(230, 126, 34, 0.35);
    position: relative;
    overflow: hidden;
}
.iidao-btn::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.7s ease;
}
.iidao-btn:hover::before { left: 100%; }
.iidao-btn:hover {
    background: linear-gradient(135deg, var(--iidao-accent-600), var(--iidao-accent-500));
    transform: translateY(-4px);
    box-shadow: 0 12px 35px rgba(230, 126, 34, 0.45);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .iidao-card-grid, .iidao-index-grid { grid-template-columns: repeat(2, 1fr); }
    .iidao-scenery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 240px; }
    .iidao-scenery-item:first-child { grid-column: span 2; grid-row: span 1; }
    .iidao-footer-grid { grid-template-columns: repeat(2, 1fr); gap: 50px; }
    .iidao-about-wrap { min-height: auto; display: flex; flex-direction: column; }
    .iidao-about-image { position: relative; width: 100%; height: 360px; order: 1; }
    .iidao-about-card { width: 90%; margin: -60px auto 0; order: 2; }
    .iidao-hero-title { font-size: 56px; }
    .iidao-guide-list { grid-template-columns: repeat(2, 1fr); }
    .iidao-single-main { padding: 50px 50px; }
    .iidao-video-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
}

@media (max-width: 768px) {
    .iidao-container { padding: 0 20px; }
    .iidao-section { padding: 70px 0; }
    .iidao-section-title h2 { font-size: 32px; }
    .iidao-hero-title { font-size: 40px; letter-spacing: 2px; }
    .iidao-hero-subtitle { font-size: 17px; }
    .iidao-nav { display: none; }
    .iidao-card-grid, .iidao-index-grid, .iidao-archive-grid, .iidao-guide-list { grid-template-columns: 1fr; gap: 20px; }
    .iidao-ferry-grid { grid-template-columns: 1fr; gap: 20px; }
    .iidao-footer-grid { grid-template-columns: 1fr; gap: 44px; }
    .iidao-single-main { padding: 36px 28px; }
    .iidao-single-title { font-size: 28px; }
    .iidao-about-title { font-size: 28px; }
    .iidao-about-card { width: 100%; padding: 36px 28px; margin-top: -40px; }
    .iidao-about-stats { gap: 20px; }
    .iidao-about-stat-num { font-size: 26px; }
    .iidao-scenery-grid { grid-template-columns: 1fr; grid-auto-rows: 260px; }
    .iidao-scenery-item:first-child { grid-column: span 1; }
    .iidao-search-form input[type="text"] { padding: 18px 24px; }
    .iidao-search-form button { padding: 0 32px; }
    .iidao-ferry-column { padding: 32px; }
    .iidao-video-grid { grid-template-columns: 1fr; gap: 20px; }
    .iidao-tide-time { font-size: 40px; }
}