:root {
    --bg: #f8fafc;
    --fg: #0f172a;
    --muted: rgba(15, 23, 42, 0.62);
    --border: rgba(15, 23, 42, 0.10);
    --card: rgba(255, 255, 255, 0.72);
    --card-border: rgba(255, 255, 255, 0.55);
    --shadow: 0 28px 80px rgba(2, 6, 23, 0.10);

    --primary: #2563eb;
    --secondary: #3b82f6;
    --wechat: #07c160;
    --focus: rgba(37, 99, 235, 0.40);
}

body {
    margin: 0;
    padding: 0;
    /* 优先使用鸿蒙字体 */
    font-family: "HarmonyOS Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    background: radial-gradient(1200px 700px at 10% 15%, rgba(37, 99, 235, 0.18), transparent 60%),
        radial-gradient(900px 600px at 90% 18%, rgba(139, 92, 246, 0.14), transparent 55%),
        radial-gradient(1000px 800px at 55% 100%, rgba(16, 185, 129, 0.12), transparent 60%),
        linear-gradient(180deg, #f8fafc 0%, #eef2ff 30%, #f8fafc 100%);
    overflow-x: hidden;
    color: var(--fg);
}

@media (prefers-color-scheme: dark) {
    body {
        --bg: #0b1220;
        --fg: rgba(226, 232, 240, 0.92);
        --muted: rgba(226, 232, 240, 0.68);
        --border: rgba(226, 232, 240, 0.16);
        --card: rgba(2, 6, 23, 0.48);
        --card-border: rgba(226, 232, 240, 0.12);
        --shadow: 0 40px 100px rgba(0, 0, 0, 0.55);
        background: radial-gradient(1200px 700px at 10% 15%, rgba(37, 99, 235, 0.24), transparent 60%),
            radial-gradient(900px 600px at 90% 18%, rgba(139, 92, 246, 0.20), transparent 55%),
            radial-gradient(1000px 800px at 55% 100%, rgba(16, 185, 129, 0.16), transparent 60%),
            linear-gradient(180deg, #070b14 0%, #0b1220 40%, #070b14 100%);
    }
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -3;
    background: radial-gradient(800px 500px at 35% 20%, rgba(255, 255, 255, 0.55), transparent 60%),
        radial-gradient(600px 450px at 70% 30%, rgba(255, 255, 255, 0.35), transparent 60%),
        radial-gradient(900px 700px at 40% 95%, rgba(255, 255, 255, 0.25), transparent 60%);
    mix-blend-mode: overlay;
    opacity: 0.55;
}

@media (prefers-color-scheme: dark) {
    body::before {
        background: radial-gradient(800px 500px at 35% 20%, rgba(255, 255, 255, 0.12), transparent 60%),
            radial-gradient(600px 450px at 70% 30%, rgba(255, 255, 255, 0.08), transparent 60%),
            radial-gradient(900px 700px at 40% 95%, rgba(255, 255, 255, 0.06), transparent 60%);
        opacity: 0.7;
    }
}

/* 背景动态光斑 */
.blob-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    filter: blur(110px);
    opacity: 0.55;
    animation: floatBlob 22s infinite alternate cubic-bezier(0.4, 0, 0.2, 1);
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(161, 196, 253, 0.8) 0%, rgba(194, 233, 251, 0) 70%);
    animation-delay: -5s;
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(255, 226, 226, 0.6) 0%, rgba(255, 255, 255, 0) 70%);
    animation-delay: 0s;
}

.blob-3 {
    top: 40%;
    left: 40%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(200, 230, 255, 0.5) 0%, rgba(255, 255, 255, 0) 70%);
    animation-delay: -10s;
}

@media (prefers-color-scheme: dark) {
    .blob-1 { background: radial-gradient(circle, rgba(76, 161, 175, 0.4) 0%, rgba(44, 62, 80, 0) 70%); }
    .blob-2 { background: radial-gradient(circle, rgba(44, 62, 80, 0.5) 0%, rgba(0, 0, 0, 0) 70%); }
    .blob-3 { background: radial-gradient(circle, rgba(52, 152, 219, 0.3) 0%, rgba(0, 0, 0, 0) 70%); }
}

@keyframes floatBlob {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(10%, 10%) scale(1.1); }
}

.card {
    --mx: 50%;
    --my: 18%;
    background: var(--card);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    padding: 56px 44px;
    border-radius: 26px;
    width: 90%;
    max-width: 560px;
    box-shadow: var(--shadow),
        inset 0 0 0 1px var(--card-border);
    border: 1px solid var(--border);
    animation: floatUp 1s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    opacity: 0;
    translate: 0 20px;
    transform: none;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
    will-change: opacity;
}

/* 卡片流光边框效果 */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.24), transparent);
    transform: skewX(-25deg);
    animation: shine 9s infinite;
    pointer-events: none;
}

.card::after {
    content: '';
    position: absolute;
    inset: -2px;
    background:
        radial-gradient(360px 260px at var(--mx) var(--my), rgba(255, 255, 255, 0.62), transparent 62%),
        radial-gradient(640px 360px at calc(var(--mx) + 10%) calc(var(--my) + 8%), rgba(37, 99, 235, 0.26), transparent 62%),
        radial-gradient(520px 320px at calc(var(--mx) - 16%) calc(var(--my) + 18%), rgba(139, 92, 246, 0.18), transparent 64%);
    opacity: 0.18;
    transition: opacity 0.22s ease;
    pointer-events: none;
    mix-blend-mode: soft-light;
    filter: saturate(1.25);
}

.card.is-active::after {
    opacity: 0.88;
}

.card.is-active {
    box-shadow: 0 34px 90px rgba(2, 6, 23, 0.14), inset 0 0 0 1px var(--card-border);
    border-color: rgba(37, 99, 235, 0.20);
}

@keyframes shine {
    0% { left: -100%; opacity: 0; }
    20% { opacity: 0.5; }
    40% { left: 200%; opacity: 0; }
    100% { left: 200%; opacity: 0; }
}

@media (prefers-color-scheme: dark) {
    .card { background: var(--card); }
    .card::before {
        background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.08), transparent);
    }
    .card::after {
        mix-blend-mode: screen;
        filter: saturate(1.2);
        opacity: 0.12;
    }
    .card.is-active::after {
        opacity: 0.72;
    }
}

@keyframes floatUp {
    to {
        opacity: 1;
        translate: 0 0;
    }
}

.logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin-bottom: 32px;
    object-fit: cover;
    box-shadow: 0 18px 50px rgba(2, 6, 23, 0.14);
    border: 1px solid rgba(255, 255, 255, 0.65);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.logo:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 70px rgba(2, 6, 23, 0.16);
}

.title {
    font-size: clamp(28px, 4vw, 36px);
    font-weight: 650;
    letter-spacing: 0.6px;
    color: var(--fg);
    margin-bottom: 18px;
    font-family: "HarmonyOS Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.quote {
    background: transparent;
    border: 0;
    padding: 0;
    font-family: inherit;
    font-size: 16px;
    line-height: 1.85;
    color: var(--muted);
    font-weight: 400;
    margin-bottom: 34px;
    letter-spacing: 0.2px;
    max-width: 46ch;
    min-height: 3.6em; /* 预留两行高度，防止内容加载时抖动 */
    opacity: 0; /* 初始隐藏 */
    transition: opacity 0.8s ease; /* 添加淡入过渡 */
    cursor: pointer;
    position: relative;
}
.quote.show {
    opacity: 1; /* 加载完成后显示 */
}

.quote:hover {
    color: rgba(15, 23, 42, 0.78);
}

.quote:active {
    opacity: 0.88;
}

.quote:disabled {
    cursor: wait;
    opacity: 0.6;
}

.quote:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 6px;
    border-radius: 12px;
}

@media (prefers-color-scheme: dark) {
    .quote:hover {
        color: rgba(226, 232, 240, 0.82);
    }
}

/* 微信客服样式 */
.contact-box {
    margin-bottom: 20px;
    padding: 12px 24px;
    background: rgba(255, 255, 255, 0.46);
    border-radius: 12px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    font-family: inherit;
    appearance: none;
    -webkit-appearance: none;
    color: inherit;
}

.contact-box:hover {
    background: rgba(255, 255, 255, 0.62);
    transform: translateY(-1px);
    box-shadow: 0 16px 40px rgba(2, 6, 23, 0.10);
}

.contact-box:active {
    transform: translateY(0);
}

.contact-box:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 4px;
}

#wechatBtn[data-state="已复制"] {
    border-color: rgba(16, 185, 129, 0.32);
}



.contact-icon {
    width: 20px;
    height: 20px;
    fill: var(--wechat);
}

.contact-text {
    font-size: 14px;
    color: var(--muted);
    font-weight: 500;
}

.contact-copy-tip {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    background: var(--wechat);
    color: white;
    font-size: 12px;
    padding: 0 12px;
    display: flex;
    align-items: center;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

/* PC端悬停显示 */
@media (hover: hover) {
    .contact-box:hover .contact-copy-tip {
        transform: translateX(0);
    }
}

.contact-box:focus-visible .contact-copy-tip {
    transform: translateX(0);
}

/* 复制成功/失败时的状态反馈 */
#wechatBtn[data-state="已复制"] .contact-copy-tip {
    background: rgba(16, 185, 129, 0.92);
    transform: translateX(0);
}

#wechatBtn[data-state="复制失败"] .contact-copy-tip {
    transform: translateX(0);
}

/* 移动端移除 hover: none 强制显示，避免遮挡文字 */

@media (prefers-color-scheme: dark) {
    .contact-box {
        background: rgba(255, 255, 255, 0.06);
        border-color: rgba(226, 232, 240, 0.14);
    }
    .contact-box:hover {
        background: rgba(255, 255, 255, 0.10);
    }
    .contact-text {
        color: var(--muted);
    }
}

/* 收藏引导样式 */
.bookmark-btn {
    margin-top: 10px; /* 调整间距 */
    background: rgba(255, 255, 255, 0.40);
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 520;
}

.bookmark-btn:hover {
    background: rgba(255, 255, 255, 0.60);
    border-color: rgba(37, 99, 235, 0.30);
    color: var(--fg);
    transform: translateY(-1px);
}

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

.bookmark-btn:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 4px;
}

@media (prefers-color-scheme: dark) {
    .bookmark-btn {
        background: rgba(255, 255, 255, 0.06);
        color: var(--fg);
        border-color: rgba(226, 232, 240, 0.16);
    }
    .bookmark-btn:hover {
        background: rgba(255, 255, 255, 0.10);
        border-color: rgba(147, 197, 253, 0.32);
        color: var(--fg);
    }
}

.bookmark-tip {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background: rgba(15, 23, 42, 0.86);
    color: rgba(255, 255, 255, 0.96);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    transition: transform 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
    z-index: 1000;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    cursor: pointer;
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.25);
}

.bookmark-tip::after {
    content: '点击关闭 · Esc';
    display: block;
    font-size: 12px;
    opacity: 0.72;
    margin-top: 6px;
}

.bookmark-tip.show {
    transform: translateX(-50%) translateY(0);
}

.footer {
    position: fixed;
    bottom: 20px;
    font-size: 12px;
    color: rgba(15, 23, 42, 0.55);
    text-shadow: none;
    opacity: 0.92;
    transition: opacity 0.3s;
    left: 50%;
    transform: translateX(-50%);
    padding: 0 12px;
    z-index: 2;
}

.footer:hover {
    opacity: 1;
}

.footer a {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px dashed rgba(15, 23, 42, 0.25);
    padding-bottom: 2px;
}

@media (prefers-color-scheme: dark) {
    .footer {
        color: rgba(226, 232, 240, 0.72);
    }
    .footer a {
        border-bottom-color: rgba(226, 232, 240, 0.28);
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .card {
        padding: 44px 24px;
        width: 85%;
        max-width: 420px;
    }
    .title { font-size: 28px; }
    .quote { font-size: 16px; }
    .logo { width: 90px; height: 90px; }
    .fraud-content { font-size: 14px; text-align: justify; }
}

/* 粒子背景 Canvas */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* 实时时钟样式 */
.clock {
    font-size: clamp(34px, 5vw, 52px);
    font-weight: 520;
    margin-bottom: 20px;
    font-family: "HarmonyOS Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    letter-spacing: 0.14em;
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum" 1;
    color: var(--fg);
    opacity: 0.92;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.45);
}

@media (prefers-color-scheme: dark) {
    .clock {
        opacity: 0.96;
        text-shadow: 0 0 22px rgba(37, 99, 235, 0.18);
    }
}

@media (max-width: 768px) {
    .clock { font-size: 36px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}