/* ========================================
   周易六爻占卜 - 中国风样式
   ======================================== */

:root {
    /* 主色调 - 朱红与墨色 */
    --primary-red: #c41e3a;
    --primary-red-dark: #8b0000;
    --primary-red-light: #e74c3c;
    --gold: #d4af37;
    --gold-light: #f4d03f;
    --ink-black: #1a1a2e;
    --ink-dark: #0f0f1a;
    --paper-cream: #f5f0e1;
    --paper-light: #faf8f0;
    --jade-green: #00a86b;
    
    /* 文字颜色 */
    --text-primary: #2c2c2c;
    --text-secondary: #5a5a5a;
    --text-light: #f5f0e1;
    
    /* 阴影 */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-medium: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-strong: 0 12px 48px rgba(0, 0, 0, 0.3);
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;
}

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

body {
    font-family: 'Noto Serif SC', serif;
    background: var(--ink-dark);
    min-height: 100vh;
    overflow-x: hidden;
    color: var(--text-primary);
}

/* ========================================
   背景与装饰
   ======================================== */

.app-container {
    position: relative;
    min-height: 100vh;
    background: 
        radial-gradient(ellipse at top, rgba(196, 30, 58, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, var(--ink-dark) 0%, #16213e 50%, var(--ink-dark) 100%);
}

.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 50px,
            rgba(212, 175, 55, 0.02) 50px,
            rgba(212, 175, 55, 0.02) 100px
        );
    pointer-events: none;
    z-index: 0;
}

.floating-clouds {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse 600px 200px at 10% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse 400px 150px at 90% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(ellipse 500px 180px at 50% 50%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
    animation: cloudFloat 30s ease-in-out infinite;
}

@keyframes cloudFloat {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(20px); }
}

/* ========================================
   页面通用样式
   ======================================== */

.page {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(30px);
    transition: all var(--transition-slow);
    z-index: 1;
}

.page.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.content-wrapper {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

/* ========================================
   欢迎页面
   ======================================== */

.title-container {
    text-align: center;
    margin-bottom: 4px;
}

.bagua-symbol {
    font-size: 80px;
    color: var(--gold);
    text-shadow: 
        0 0 30px rgba(212, 175, 55, 0.5),
        0 0 60px rgba(212, 175, 55, 0.3);
    animation: symbolPulse 3s ease-in-out infinite;
    margin-bottom: 16px;
}

@keyframes symbolPulse {
    0%, 100% { 
        transform: scale(1) rotate(0deg);
        filter: brightness(1);
    }
    50% { 
        transform: scale(1.05) rotate(180deg);
        filter: brightness(1.2);
    }
}

.main-title {
    font-family: 'Ma Shan Zheng', cursive;
    font-size: 56px;
    color: var(--paper-cream);
    letter-spacing: 12px;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.5),
        0 0 40px rgba(212, 175, 55, 0.3);
    margin-bottom: 12px;
}

.subtitle {
    font-size: 18px;
    color: var(--gold);
    letter-spacing: 8px;
    opacity: 0.9;
}

.brand-description {
    margin-top: 10px;
    color: rgba(245, 240, 225, 0.72);
    font-size: 13px;
    letter-spacing: 2px;
}

#welcome-page .content-wrapper {
    gap: 18px;
}

/* ========================================
   每日一易
   ======================================== */

.daily-tip-card {
    position: relative;
    width: 100%;
    padding: 20px 24px 18px;
    overflow: hidden;
    color: var(--paper-cream);
    background:
        radial-gradient(circle at 92% 8%, rgba(212, 175, 55, 0.12), transparent 34%),
        linear-gradient(145deg, rgba(31, 27, 38, 0.96), rgba(12, 18, 34, 0.94));
    border: 1px solid rgba(212, 175, 55, 0.36);
    border-radius: 6px 18px 6px 18px;
    box-shadow:
        inset 0 0 28px rgba(212, 175, 55, 0.025),
        0 12px 36px rgba(0, 0, 0, 0.26);
}

.daily-tip-card::before {
    content: '';
    position: absolute;
    inset: 7px;
    z-index: 0;
    border: 1px solid rgba(212, 175, 55, 0.09);
    border-radius: 3px 13px 3px 13px;
    pointer-events: none;
}

.daily-tip-card::after {
    content: '☯';
    position: absolute;
    right: 18px;
    bottom: -26px;
    color: rgba(212, 175, 55, 0.045);
    font-size: 108px;
    line-height: 1;
    pointer-events: none;
}

.daily-tip-card > * {
    position: relative;
    z-index: 1;
}

.daily-tip-heading {
    display: flex;
    align-items: center;
    gap: 13px;
}

.daily-tip-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 58px;
    flex: 0 0 44px;
    background:
        radial-gradient(circle at 35% 26%, rgba(255, 255, 255, 0.45), transparent 28%),
        linear-gradient(145deg, #f8ebcf, #e8d4ab);
    border: 2px solid #b53236;
    border-radius: 48% 52% 46% 54% / 50% 47% 53% 50%;
    outline: 1px solid rgba(181, 50, 54, 0.45);
    outline-offset: 2px;
    box-shadow:
        inset 0 0 7px rgba(126, 75, 38, 0.16),
        0 2px 10px rgba(0, 0, 0, 0.22);
    transform: rotate(-2deg);
}

.daily-tip-mark img {
    display: block;
    width: 39px;
    height: 43px;
    object-fit: contain;
    opacity: 0.92;
    filter:
        brightness(0)
        saturate(100%)
        invert(21%)
        sepia(48%)
        saturate(3000%)
        hue-rotate(334deg)
        brightness(80%)
        contrast(95%);
}

.daily-tip-title-group {
    display: flex;
    align-items: baseline;
    gap: 11px;
}

.daily-tip-title {
    color: #e5c968;
    font-family: 'Ma Shan Zheng', 'STKaiti', cursive;
    font-size: 25px;
    letter-spacing: 4px;
    text-shadow: 0 0 16px rgba(212, 175, 55, 0.18);
}

.daily-tip-meta {
    color: rgba(245, 240, 225, 0.52);
    font-size: 12px;
    letter-spacing: 2px;
}

.daily-tip-quote {
    margin: 17px 0 13px;
    padding: 0 10px 0 16px;
    border: 0;
    border-left: 1px solid rgba(212, 175, 55, 0.45);
    font-family: 'STKaiti', 'KaiTi', 'Noto Serif SC', serif;
    font-size: 17px;
    line-height: 1.75;
    letter-spacing: 1px;
}

.daily-tip-quote cite {
    display: inline;
    margin-left: 8px;
    color: rgba(245, 240, 225, 0.46);
    font-size: 12px;
    font-style: normal;
    letter-spacing: 0;
    white-space: nowrap;
}

.daily-tip-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px 6px 10px;
    color: #e0c36a;
    background: rgba(212, 175, 55, 0.07);
    border: 1px solid rgba(212, 175, 55, 0.24);
    border-radius: 18px;
    font-family: inherit;
    font-size: 12px;
    letter-spacing: 1px;
    cursor: pointer;
    transition: color var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.daily-tip-toggle-icon {
    position: relative;
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 1px solid rgba(212, 175, 55, 0.55);
    border-radius: 50%;
    transition: transform var(--transition-medium), background var(--transition-fast);
}

.daily-tip-toggle-icon::before,
.daily-tip-toggle-icon::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 4px;
    width: 8px;
    height: 1px;
    background: currentColor;
}

.daily-tip-toggle-icon::after {
    transform: rotate(90deg);
    transition: opacity var(--transition-fast);
}

.daily-tip-toggle[aria-expanded='true'] .daily-tip-toggle-icon {
    transform: rotate(180deg);
    background: rgba(212, 175, 55, 0.12);
}

.daily-tip-toggle[aria-expanded='true'] .daily-tip-toggle-icon::after {
    opacity: 0;
}

.daily-tip-toggle:hover,
.daily-tip-toggle:focus-visible {
    color: var(--gold-light);
    background: rgba(212, 175, 55, 0.13);
    border-color: rgba(212, 175, 55, 0.55);
    outline: none;
}

.daily-tip-details {
    margin-top: 14px;
    padding: 14px 16px 3px;
    color: rgba(245, 240, 225, 0.76);
    background: rgba(0, 0, 0, 0.12);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 0 0 8px 8px;
    font-size: 13px;
    line-height: 1.7;
    animation: dailyTipReveal 0.28s ease-out;
}

@keyframes dailyTipReveal {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.daily-tip-details p + p {
    margin-top: 7px;
}

.daily-tip-details strong {
    color: var(--gold);
    font-weight: 600;
}

.tip-question-btn {
    margin-top: 12px;
    padding: 7px 14px;
    color: var(--paper-cream);
    background: rgba(196, 30, 58, 0.75);
    border: 1px solid rgba(231, 76, 60, 0.6);
    border-radius: 18px;
    font-family: inherit;
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tip-question-btn:hover {
    background: var(--primary-red);
    transform: translateY(-1px);
}

/* ========================================
   问题输入区域
   ======================================== */

.question-section {
    width: 100%;
    background: linear-gradient(135deg, rgba(245, 240, 225, 0.95) 0%, rgba(250, 248, 240, 0.95) 100%);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-medium);
    border: 1px solid rgba(212, 175, 55, 0.3);
    position: relative;
    overflow: hidden;
}

.question-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-red), var(--gold), var(--primary-red));
}

.question-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 20px;
    font-weight: 600;
}

.label-icon {
    color: var(--primary-red);
    font-size: 14px;
}

.question-input {
    width: 100%;
    padding: 20px;
    font-family: 'Noto Serif SC', serif;
    font-size: 16px;
    line-height: 1.8;
    border: 2px solid rgba(196, 30, 58, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-primary);
    resize: none;
    transition: all var(--transition-fast);
}

.question-input:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 4px rgba(196, 30, 58, 0.1);
}

.question-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.hint-text {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 16px;
    font-style: italic;
}

/* ========================================
   按钮样式
   ======================================== */

.primary-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 18px 48px;
    font-family: 'Noto Serif SC', serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--paper-cream);
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-dark) 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 
        0 4px 15px rgba(196, 30, 58, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.primary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 6px 25px rgba(196, 30, 58, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.primary-btn:hover::before {
    left: 100%;
}

.primary-btn:active {
    transform: translateY(0);
}

.primary-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.secondary-btn {
    padding: 14px 36px;
    font-family: 'Noto Serif SC', serif;
    font-size: 16px;
    color: var(--gold);
    background: transparent;
    border: 2px solid var(--gold);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.secondary-btn:hover {
    background: rgba(212, 175, 55, 0.1);
    transform: translateY(-2px);
}

/* 结果页按钮组 */
.result-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

.result-buttons .primary-btn {
    padding: 14px 28px;
    font-size: 16px;
}

.result-buttons .secondary-btn {
    padding: 14px 28px;
}

.btn-icon {
    font-size: 20px;
    transition: transform var(--transition-fast);
}

.primary-btn:hover .btn-icon {
    transform: translateX(4px);
}

/* ========================================
   铜钱页面
   ======================================== */

.page-header {
    text-align: center;
}

.page-title {
    font-family: 'Ma Shan Zheng', cursive;
    font-size: 42px;
    color: var(--paper-cream);
    letter-spacing: 8px;
    margin-bottom: 8px;
}

.page-subtitle {
    font-size: 18px;
    color: var(--gold);
    letter-spacing: 4px;
}

/* 铜钱容器 */
.coins-container {
    display: flex;
    gap: 24px;
    margin: 20px 0;
}

.coin {
    width: 120px;
    height: 120px;
    perspective: 1000px;
    cursor: pointer;
}

.coin-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.1s ease;
}

/* 抛硬币时：外层控制缩放（模拟远近），内层控制旋转 */
.coin.flipping {
    animation: coinThrow 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.coin.flipping .coin-inner {
    animation: coinSpin 1.4s ease-out forwards;
}

/* 外层：从小变大再变小，模拟从地面抛起然后落下 */
@keyframes coinThrow {
    0% {
        transform: scale(0.25) translateY(60px);
        filter: brightness(0.6);
    }
    15% {
        transform: scale(0.6) translateY(10px);
        filter: brightness(0.85);
    }
    38% {
        transform: scale(1.15) translateY(-20px);
        filter: brightness(1.15);
    }
    55% {
        transform: scale(1.0) translateY(-8px);
        filter: brightness(1.08);
    }
    72% {
        transform: scale(0.88) translateY(4px);
        filter: brightness(0.95);
    }
    85% {
        transform: scale(0.95) translateY(0px);
        filter: brightness(1.0);
    }
    100% {
        transform: scale(1.0) translateY(0px);
        filter: brightness(1.0);
    }
}

/* 内层：只做Y轴旋转（翻面） */
@keyframes coinSpin {
    0% {
        transform: rotateY(0deg);
    }
    30% {
        transform: rotateY(1080deg);
    }
    65% {
        transform: rotateY(2520deg);
    }
    100% {
        transform: rotateY(var(--final-rotation));
    }
}

.coin-front,
.coin-back {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backface-visibility: hidden;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.4),
        0 8px 25px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.coin-front img,
.coin-back img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.coin-front {
    background: transparent;
}

.coin-back {
    transform: rotateY(180deg);
    background: transparent;
}

/* 铜钱悬停效果（不在翻转中才生效） */
.coin:not(.flipping):hover .coin-inner {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

.coin:not(.flipping):hover .coin-front img,
.coin:not(.flipping):hover .coin-back img {
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.4)) brightness(1.1);
}

/* 显示结果状态（外层重置缩放，内层控制翻面方向） */
.coin.show-front {
    transform: scale(1) translateY(0);
    filter: brightness(1);
}

.coin.show-front .coin-inner {
    transform: rotateY(0deg);
}

.coin.show-back {
    transform: scale(1) translateY(0);
    filter: brightness(1);
}

.coin.show-back .coin-inner {
    transform: rotateY(180deg);
}

/* 铜钱落地弹跳效果 */
.coin.landed {
    animation: coinBounceOuter 0.35s ease-out forwards;
}

@keyframes coinBounceOuter {
    0%   { transform: scale(1.0) translateY(0); }
    30%  { transform: scale(1.04) translateY(-4px); }
    65%  { transform: scale(0.97) translateY(2px); }
    100% { transform: scale(1.0) translateY(0); }
}

/* 投掷结果显示 */
.throw-result {
    background: rgba(245, 240, 225, 0.1);
    padding: 16px 32px;
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    min-width: 280px;
    text-align: center;
}

.result-text {
    font-size: 18px;
    color: var(--paper-cream);
    letter-spacing: 2px;
}

.result-text.yang {
    color: var(--gold);
}

.result-text.yin {
    color: #a0c4ff;
}

/* 掷铜钱按钮 */
.throw-btn {
    padding: 20px 60px;
    font-size: 20px;
}

/* 爻进度显示 */
.yao-progress {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 24px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.yao-line {
    width: 120px;
    height: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    position: relative;
    transition: all var(--transition-medium);
}

.yao-line.yang {
    background: linear-gradient(90deg, var(--gold), var(--gold-light), var(--gold));
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
}

.yao-line.yin {
    background: transparent;
}

.yao-line.yin::before,
.yao-line.yin::after {
    content: '';
    position: absolute;
    top: 0;
    height: 100%;
    width: 45%;
    background: linear-gradient(90deg, #a0c4ff, #c8deff, #a0c4ff);
    border-radius: 2px;
    box-shadow: 0 0 10px rgba(160, 196, 255, 0.5);
}

.yao-line.yin::before {
    left: 0;
}

.yao-line.yin::after {
    right: 0;
}

.yao-line.yang-moving {
    background: linear-gradient(90deg, var(--primary-red), var(--primary-red-light), var(--primary-red));
    box-shadow: 0 0 15px rgba(196, 30, 58, 0.6);
    animation: yaoGlow 1s ease-in-out infinite;
}

.yao-line.yin-moving {
    background: transparent;
}

.yao-line.yin-moving::before,
.yao-line.yin-moving::after {
    content: '';
    position: absolute;
    top: 0;
    height: 100%;
    width: 45%;
    background: linear-gradient(90deg, #e67e22, #f39c12, #e67e22);
    border-radius: 2px;
    box-shadow: 0 0 15px rgba(230, 126, 34, 0.7);
    animation: yaoGlow 1s ease-in-out infinite;
}

.yao-line.yin-moving::before {
    left: 0;
}

.yao-line.yin-moving::after {
    right: 0;
}

@keyframes yaoGlow {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.3); }
}

.yao-labels {
    display: flex;
    justify-content: space-between;
    width: 120px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: -8px;
}

/* ========================================
   结果页面
   ======================================== */

.hexagram-display {
    display: flex;
    align-items: center;
    gap: 40px;
    padding: 32px;
    background: rgba(245, 240, 225, 0.05);
    border-radius: 16px;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.hexagram-visual {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.hexagram-visual .yao-line {
    width: 80px;
    height: 10px;
}

.hexagram-info {
    text-align: left;
}

.hexagram-name {
    font-family: 'Ma Shan Zheng', cursive;
    font-size: 36px;
    color: var(--gold);
    margin-bottom: 8px;
}

.hexagram-nature {
    font-size: 16px;
    color: var(--paper-cream);
    opacity: 0.8;
}

/* 解读区域 */
.interpretation-section {
    width: 100%;
    background: linear-gradient(135deg, rgba(245, 240, 225, 0.95) 0%, rgba(250, 248, 240, 0.95) 100%);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-medium);
}

.user-question-display {
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(196, 30, 58, 0.2);
    font-size: 16px;
    line-height: 1.6;
}

.user-question-display .label {
    color: var(--primary-red);
    font-weight: 600;
}

.ai-response {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-primary);
    min-height: 150px;
    max-height: 450px;
    overflow-y: auto;
    padding-right: 8px;
}

/* 自定义滚动条 */
.ai-response::-webkit-scrollbar {
    width: 6px;
}

.ai-response::-webkit-scrollbar-track {
    background: rgba(196, 30, 58, 0.1);
    border-radius: 3px;
}

.ai-response::-webkit-scrollbar-thumb {
    background: var(--primary-red);
    border-radius: 3px;
}

.ai-response::-webkit-scrollbar-thumb:hover {
    background: var(--primary-red-dark);
}

.ai-response p {
    margin-bottom: 16px;
}

/* 加载动画 */
.loading-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 40px;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(196, 30, 58, 0.2);
    border-top-color: var(--primary-red);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========================================
   模态框
   ======================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--paper-cream);
    padding: 40px;
    border-radius: 16px;
    max-width: 450px;
    width: 90%;
    box-shadow: var(--shadow-strong);
}

.modal-content h3 {
    font-family: 'Ma Shan Zheng', cursive;
    font-size: 28px;
    color: var(--primary-red);
    margin-bottom: 12px;
    text-align: center;
}

.modal-hint {
    font-size: 14px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 24px;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    border: 2px solid rgba(196, 30, 58, 0.2);
    border-radius: 8px;
    background: white;
    transition: all var(--transition-fast);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-red);
}

.modal-buttons {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.modal-buttons .primary-btn,
.modal-buttons .secondary-btn {
    flex: 1;
    padding: 12px 20px;
    font-size: 14px;
}

.modal-buttons .secondary-btn {
    color: var(--text-secondary);
    border-color: var(--text-secondary);
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 640px) {
    .page {
        padding: 24px 16px;
    }

    .main-title {
        font-size: 40px;
        letter-spacing: 8px;
    }
    
    .bagua-symbol {
        font-size: 52px;
        margin-bottom: 8px;
    }

    .subtitle {
        font-size: 16px;
    }

    .brand-description {
        margin-top: 7px;
        font-size: 12px;
        letter-spacing: 1px;
    }

    #welcome-page .content-wrapper {
        gap: 14px;
    }

    .daily-tip-card {
        padding: 14px 16px;
    }

    .daily-tip-quote {
        margin: 9px 0 5px;
        font-size: 14px;
    }
    
    .question-section {
        padding: 20px;
    }

    .question-label {
        margin-bottom: 14px;
    }

    .question-input {
        padding: 14px;
        line-height: 1.6;
    }

    .hint-text {
        margin-top: 10px;
    }
    
    .coins-container {
        gap: 16px;
    }
    
    .coin {
        width: 80px;
        height: 80px;
    }
    
    .coin-front::after,
    .coin-back::after {
        font-size: 24px;
    }
    
    .hexagram-display {
        flex-direction: column;
        gap: 24px;
    }
    
    .hexagram-info {
        text-align: center;
    }
    
    .modal-content {
        padding: 24px;
    }
}

/* ========================================
   打字机效果
   ======================================== */

/* ========================================
   Markdown 渲染样式
   ======================================== */

.markdown-content {
    line-height: 1.8;
}

.md-paragraph {
    margin-bottom: 16px;
}

.md-paragraph:last-child {
    margin-bottom: 0;
}

/* 淡入动画 */
.fade-in {
    animation: fadeInUp 0.4s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Markdown 标题样式 */
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
    font-family: 'Ma Shan Zheng', cursive;
    color: var(--primary-red);
    margin: 20px 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(196, 30, 58, 0.2);
}

.markdown-content h1 { font-size: 28px; }
.markdown-content h2 { font-size: 24px; }
.markdown-content h3 { font-size: 20px; border-bottom: none; }
.markdown-content h4 { font-size: 18px; border-bottom: none; }

/* 段落样式 */
.markdown-content p {
    margin: 12px 0;
    text-align: justify;
}

/* 列表样式 */
.markdown-content ul,
.markdown-content ol {
    margin: 12px 0;
    padding-left: 24px;
}

.markdown-content li {
    margin: 8px 0;
    position: relative;
}

.markdown-content ul li::marker {
    color: var(--primary-red);
}

.markdown-content ol li::marker {
    color: var(--gold);
    font-weight: 600;
}

/* 强调样式 */
.markdown-content strong {
    color: var(--primary-red);
    font-weight: 700;
}

.markdown-content em {
    color: var(--jade-green);
    font-style: normal;
    padding: 0 4px;
    background: rgba(0, 168, 107, 0.1);
    border-radius: 4px;
}

/* 引用块样式 */
.markdown-content blockquote {
    margin: 16px 0;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(196, 30, 58, 0.05) 100%);
    border-left: 4px solid var(--gold);
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.markdown-content blockquote p {
    margin: 0;
}

/* 代码样式 */
.markdown-content code {
    background: rgba(196, 30, 58, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', monospace;
    font-size: 14px;
    color: var(--primary-red-dark);
}

/* 分隔线 */
.markdown-content hr {
    border: none;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    margin: 24px 0;
}

/* 链接样式 */
.markdown-content a {
    color: var(--primary-red);
    text-decoration: none;
    border-bottom: 1px dashed var(--primary-red);
    transition: all var(--transition-fast);
}

.markdown-content a:hover {
    color: var(--gold);
    border-bottom-color: var(--gold);
}

/* 旧版打字机效果（保留兼容） */
.typewriter {
    overflow: hidden;
}

.typewriter-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--primary-red);
    margin-left: 2px;
    animation: blink 0.8s infinite;
    vertical-align: text-bottom;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ========================================
   流式渲染样式
   ======================================== */

.stream-content {
    min-height: 100px;
}

/* 流式光标效果 */
.stream-content::after {
    content: '▋';
    color: var(--primary-red);
    animation: streamCursor 0.8s ease-in-out infinite;
    margin-left: 2px;
}

@keyframes streamCursor {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

/* 流式内容完成后隐藏光标 */
.stream-content.finished::after {
    display: none;
}

/* PC交互模式下的硬币容器样式 */
.coins-container.pc-interactive {
    cursor: pointer;
    padding: 20px;
    border-radius: 24px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.coins-container.pc-interactive:hover {
    background: rgba(212, 175, 55, 0.05);
    border-color: rgba(212, 175, 55, 0.3);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.15);
}

.coins-container.pc-interactive:active {
    transform: scale(0.98);
}

/* ========================================
   分享功能
   ======================================== */

/* 小尺寸按钮（弹窗内 / 复制按钮） */
.primary-btn.small,
.secondary-btn.small {
    padding: 12px 20px;
    font-size: 14px;
    gap: 6px;
}

/* 欢迎页分享入口（低调的文字按钮） */
.share-entry-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 4px auto 0;
    padding: 8px 20px;
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    color: var(--gold);
    background: transparent;
    border: 1px solid rgba(212, 175, 55, 0.4);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.share-entry-btn:hover {
    background: rgba(212, 175, 55, 0.1);
    border-color: var(--gold);
    transform: translateY(-1px);
}

.share-entry-icon {
    color: var(--primary-red);
}

/* 分享弹窗 */
.share-modal-content {
    position: relative;
    text-align: center;
    max-width: 380px;
}

.share-modal-close {
    position: absolute;
    top: 14px;
    right: 18px;
    width: 32px;
    height: 32px;
    line-height: 1;
    font-size: 24px;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.share-modal-close:hover {
    color: var(--primary-red);
    background: rgba(196, 30, 58, 0.08);
}

.share-qr-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin: 8px 0 22px;
}

.share-qr {
    width: 176px;
    height: 176px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    background: #fff;
    border-radius: 12px;
    border: 1px solid rgba(212, 175, 55, 0.35);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

.share-qr img {
    display: block;
    width: 160px;
    height: 160px;
}

.share-qr-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.share-link-row {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.share-link-input {
    flex: 1;
    min-width: 0;
    padding: 10px 14px;
    font-family: 'Noto Serif SC', serif;
    font-size: 13px;
    color: var(--text-secondary);
    border: 2px solid rgba(196, 30, 58, 0.2);
    border-radius: 8px;
    background: #fff;
}

.share-link-input:focus {
    outline: none;
    border-color: var(--primary-red);
}

.share-link-row .primary-btn.small {
    flex-shrink: 0;
    white-space: nowrap;
}

.share-modal-actions {
    display: flex;
    gap: 10px;
}

.share-modal-actions .secondary-btn.small {
    flex: 1;
}

.share-modal-tip {
    margin-top: 18px;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 轻提示 toast */
.share-toast {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translateX(-50%) translateY(20px);
    max-width: 80%;
    padding: 12px 24px;
    font-size: 14px;
    color: #fff;
    background: rgba(44, 44, 44, 0.92);
    border-radius: 50px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 2000;
    pointer-events: none;
    text-align: center;
}

.share-toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

@media (max-width: 640px) {
    .share-modal-content {
        padding: 32px 24px;
    }

    .share-modal-actions {
        flex-direction: column;
    }
}

/* ========================================
   裂变 & 留存 一期
   ======================================== */

/* hidden 属性必须优先于下方的 display 规则（否则 flex/inline-flex 会覆盖它） */
[hidden] {
    display: none !important;
}

/* 欢迎页入口组（打卡 chip + 分享） */
.welcome-entries {
    display: flex;
    gap: 12px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin-top: 4px;
}

.streak-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    color: var(--primary-red);
    background: rgba(196, 30, 58, 0.08);
    border: 1px solid rgba(196, 30, 58, 0.25);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.streak-chip:hover {
    background: rgba(196, 30, 58, 0.14);
    transform: translateY(-1px);
}

.streak-chip b {
    font-size: 16px;
}

/* 邀请横幅（好友求卦落地） */
.invite-banner {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    margin-bottom: 8px;
    background: linear-gradient(135deg, rgba(196, 30, 58, 0.1), rgba(212, 175, 55, 0.12));
    border: 1px solid rgba(212, 175, 55, 0.4);
    border-radius: 14px;
    text-align: left;
}

.invite-banner-icon {
    font-size: 28px;
    color: var(--primary-red);
    flex-shrink: 0;
}

.invite-banner-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.invite-banner-text strong {
    font-size: 16px;
    color: var(--primary-red);
}

.invite-banner-text span {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 今日求卦编号 */
.daily-number {
    text-align: center;
    font-size: 14px;
    color: var(--gold);
    letter-spacing: 1px;
    margin: 0 0 12px;
}

.daily-number span {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-red);
}

/* 一键文案 */
.share-copy-section {
    margin: 20px 0 8px;
    padding: 18px;
    background: rgba(212, 175, 55, 0.06);
    border: 1px solid rgba(212, 175, 55, 0.25);
    border-radius: 12px;
}

.share-copy-title {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 0 0 12px;
    text-align: center;
}

.share-copy-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.share-copy-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: #fff;
    border: 1px solid rgba(196, 30, 58, 0.15);
    border-radius: 10px;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.share-copy-item:hover {
    border-color: var(--primary-red);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.share-copy-item .copy-text {
    flex: 1;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
}

.share-copy-item .copy-icon {
    flex-shrink: 0;
    font-size: 13px;
    color: var(--gold);
    white-space: nowrap;
}

/* 贴底浮动分享条（仅结果页） */
.share-sticky-bar {
    position: fixed;
    left: 50%;
    bottom: 16px;
    transform: translateX(-50%);
    z-index: 900;
    width: calc(100% - 32px);
    max-width: 520px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px 12px 20px;
    background: rgba(255, 254, 245, 0.96);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(212, 175, 55, 0.5);
    border-radius: 50px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
    animation: sticky-rise 0.4s ease;
}

@keyframes sticky-rise {
    from { opacity: 0; transform: translate(-50%, 16px); }
    to { opacity: 1; transform: translate(-50%, 0); }
}

.share-sticky-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.3;
}

.share-sticky-btn {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 11px 22px;
    font-family: 'Noto Serif SC', serif;
    font-size: 15px;
    font-weight: 600;
    color: var(--paper-cream);
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-red-dark) 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    box-shadow: 0 3px 10px rgba(196, 30, 58, 0.4);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    white-space: nowrap;
}

.share-sticky-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(196, 30, 58, 0.5);
}

.share-sticky-btn:active {
    transform: translateY(0);
}

/* 浮动条不遮住底部按钮 */
#result-page .content-wrapper {
    padding-bottom: 84px;
}

@media (max-width: 640px) {
    .share-sticky-text {
        font-size: 13px;
    }
    .share-sticky-btn {
        padding: 10px 16px;
        font-size: 14px;
    }
    .share-sticky-bar {
        padding: 10px 12px 10px 16px;
    }
}