:root{
        --main-color:#22d3ee;      /* 主色 青 */
        --accent-color:#fb923c;    /* 强调 橙 */
        --bg-color:#0f172a;        /* 深蓝黑背景 */
        --text-color:#e2e8f0;      /* 主文字 */
        --card-bg:rgba(30, 41, 59, 0.7);
        --border-light:rgba(34, 211, 238, 0.15);
    }
    *{box-sizing:border-box;}
    body{
        background-color: var(--bg-color);
        color: var(--text-color);
        font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        overflow-x:hidden;
        scroll-behavior:smooth;
    }
    /* 双色块左右分屏 —— 背景用两个色块,hero左青右橙微弱渐变 */
    .dual-bg {
        background: linear-gradient(105deg, rgba(34,211,238,0.03) 0%, rgba(34,211,238,0.01) 30%, transparent 45%),
                    linear-gradient(75deg, transparent 65%, rgba(251,146,60,0.04) 100%);
    }
    /* 吸顶导航 */
    .navbar-sticky{
        backdrop-filter: blur(10px);
        background: rgba(15, 23, 42, 0.7);
        border-bottom: 1px solid var(--border-light);
        box-shadow: 0 10px 30px -15px rgba(0,0,0,0.6);
        z-index: 1030;
    }
    .navbar-brand{
        font-weight: 800;
        letter-spacing: -0.02em;
        font-size: 1.7rem;
        color: var(--text-color) !important;
        transition: 0.2s;
    }
    .navbar-brand i{color: var(--main-color); margin-right: 8px; font-size: 1.8rem;}
    .navbar-nav .nav-link{
        font-weight: 500;
        color: rgba(226,232,240,0.8);
        margin: 0 0.8rem;
        border-radius: 30px;
        padding: 0.35rem 1.1rem;
        transition: 0.2s;
    }
    .navbar-nav .nav-link:hover{
        color: var(--accent-color);
        background: rgba(251,146,60,0.1);
    }
    .btn-capsule{
        border-radius: 40px;
        padding: 0.55rem 1.8rem;
        font-weight: 600;
        transition: 0.2s ease;
        border: none;
    }
    .btn-main{
        background: var(--main-color);
        color: #0f172a;
    }
    .btn-main:hover{ background:#0ea5c4; color:#fff; transform: scale(1.02); }
    .btn-accent{
        background: var(--accent-color);
        color: #0f172a;
    }
    .btn-accent:hover{ background:#ea7c1e; color:#fff; transform: scale(1.02);}
    .hero-section{
        padding: 6rem 0 5rem;
        position: relative;
    }
    .hero-title{
        font-size: 3.8rem;
        font-weight: 900;
        line-height: 1.1;
        letter-spacing: -0.03em;
        color: white;
        text-shadow: 0 4px 25px rgba(34,211,238,0.25);
        background: linear-gradient(120deg, #ffffff 0%, var(--main-color) 50%, var(--accent-color) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }
    .hero-sub{
        font-size: 1.2rem;
        color: rgba(226,232,240,0.7);
        max-width: 640px;
    }
    .feature-card{
        background: var(--card-bg);
        backdrop-filter: blur(4px);
        border: 1px solid rgba(255,255,255,0.05);
        border-radius: 1.8rem;
        padding: 2rem 1.5rem;
        transition: 0.25s ease;
        box-shadow: 0 15px 30px -15px rgba(0,0,0,0.5);
        height: 100%;
    }
    .feature-card:hover{
        transform: scale(1.02);
        border-color: var(--main-color);
        box-shadow: 0 20px 35px -15px rgba(34,211,238,0.15);
    }
    .feature-icon{
        font-size: 2.5rem;
        color: var(--main-color);
        margin-bottom: 1rem;
    }
    .faq-accordion .accordion-item{
        background: transparent;
        border: 1px solid var(--border-light);
        border-radius: 18px !important;
        margin-bottom: 12px;
        overflow: hidden;
        background-color: rgba(15,23,42,0.6);
        backdrop-filter: blur(2px);
    }
    .accordion-button{
        background: transparent;
        color: var(--text-color);
        font-weight: 600;
        padding: 1.4rem 1.5rem;
        font-size: 1.1rem;
        box-shadow: none;
        border-radius: 18px !important;
    }
    .accordion-button:not(.collapsed){
        background: rgba(34,211,238,0.1);
        color: var(--main-color);
    }
    .accordion-button:focus{ box-shadow: none; }
    .accordion-button::after{ filter: invert(1); opacity: 0.6;}
    .accordion-body{ padding: 1.2rem 1.5rem 1.8rem; color: rgba(226,232,240,0.8);}
    .section-title{
        font-size: 2.3rem;
        font-weight: 800;
        letter-spacing: -0.01em;
        color: #fff;
        margin-bottom: 2rem;
    }
    .section-title i{ color: var(--accent-color); margin-right: 0.5rem;}
    .intro-block{
        background: rgba(30,41,59,0.4);
        border-left: 5px solid var(--accent-color);
        border-radius: 30px;
        padding: 2.5rem;
        backdrop-filter: blur(3px);
    }
    .cta-section{
        background: linear-gradient(120deg, rgba(34,211,238,0.05), rgba(251,146,60,0.05));
        border-radius: 3rem;
        padding: 3rem 2rem;
        border: 1px solid var(--border-light);
    }
    .footer-links{
        background: rgba(0,0,0,0.2);
        border-radius: 20px;
        padding: 1rem 2rem;
        border: 1px dashed rgba(34,211,238,0.2);
    }
    #backToTop{
        position: fixed;
        bottom: 25px;
        right: 25px;
        width: 45px;
        height: 45px;
        border-radius: 50%;
        background: var(--accent-color);
        border: none;
        color: #0f172a;
        font-size: 1.2rem;
        box-shadow: 0 10px 20px rgba(0,0,0,0.4);
        opacity: 0;
        visibility: hidden;
        transition: 0.3s;
        z-index: 1050;
    }
    #backToTop.show{
        opacity: 1;
        visibility: visible;
    }
    /* 背景视差 (纯css滚动) */
    .parallax-bg{
        background-image: url('{随机图片}');
        background-size: cover;
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        min-height: 100vh;
        width: 100%;
        position: absolute;
        top:0; left:0;
        z-index: -1;
        opacity: 0.08;
    }
    /* 移动端 */
    @media (max-width: 768px){
        .hero-title{ font-size: 2.5rem; }
        .navbar-collapse{ background: rgba(15,23,42,0.95); border-radius: 20px; padding: 1rem; margin-top: 0.5rem; }
    }
    .brand-footer{
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--text-color);
        letter-spacing: -0.01em;
    }
    .brand-footer i{color: var(--main-color); margin-right: 6px;}

/* --- 子页面追加 --- */
/* 本页专属少量样式,自动合并进站点CSS */
        .about-hero {
            padding: 120px 0 80px;
            position: relative;
            overflow: hidden;
        }
.about-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
.about-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(251, 146, 60, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
.about-hero .container {
            position: relative;
            z-index: 2;
        }
.about-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 20px;
        }
.about-hero .hero-sub {
            max-width: 700px;
            font-size: 1.2rem;
            color: var(--text-color);
            opacity: 0.85;
        }
.about-section {
            padding: 70px 0;
        }
.about-card {
            background: var(--card-bg);
            border: 1px solid var(--border-light);
            border-radius: 16px;
            padding: 35px;
            height: 100%;
            transition: all 0.3s ease;
        }
.about-card:hover {
            transform: translateY(-6px);
            border-color: var(--main-color);
            box-shadow: 0 12px 30px rgba(34, 211, 238, 0.1);
        }
.about-card .icon-wrap {
            width: 52px;
            height: 52px;
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid var(--border-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--main-color);
            margin-bottom: 20px;
        }
.about-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-color);
        }
.about-card p {
            font-size: 0.95rem;
            line-height: 1.8;
            color: var(--text-color);
            opacity: 0.85;
        }
.story-block {
            background: rgba(34, 211, 238, 0.06);
            border-left: 3px solid var(--main-color);
            border-radius: 0 16px 16px 0;
            padding: 35px;
            margin-bottom: 30px;
        }
.story-block h3 {
            color: var(--main-color);
            font-weight: 700;
            font-size: 1.4rem;
            margin-bottom: 18px;
        }
.story-block p {
            font-size: 1rem;
            line-height: 2;
            color: var(--text-color);
            opacity: 0.9;
        }
.timeline-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
.timeline-list li {
            padding: 16px 0;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }
.timeline-list li:last-child {
            border-bottom: none;
        }
.timeline-date {
            min-width: 80px;
            color: var(--accent-color);
            font-weight: 700;
            font-size: 0.95rem;
        }
.timeline-content {
            flex: 1;
            font-size: 0.95rem;
            line-height: 1.7;
            color: var(--text-color);
            opacity: 0.88;
        }
.stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--main-color);
            line-height: 1.2;
        }
.stat-label {
            font-size: 0.9rem;
            color: var(--text-color);
            opacity: 0.7;
            margin-top: 6px;
        }
.about-hero {
                padding: 80px 0 50px;
            }
.about-hero h1 {
                font-size: 2rem;
            }
.about-card {
                padding: 25px;
            }
.story-block {
                padding: 25px;
            }

/* --- 子页面追加 --- */
/* 本页专属的少量补充样式，自动合并进站点CSS */
        .disclaimer-section { padding: 70px 0; }
.disclaimer-section .section-title { margin-bottom: 45px; }
.disclaimer-block { background: var(--card-bg); border: 1px solid var(--border-light); border-radius: 14px; padding: 30px; margin-bottom: 28px; backdrop-filter: blur(6px); }
.disclaimer-block h3 { color: var(--main-color); font-size: 1.35rem; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.disclaimer-block h3 i { color: var(--accent-color); font-size: 1.2rem; }
.disclaimer-block p, .disclaimer-block li { color: var(--text-color); font-size: 0.98rem; line-height: 1.85; opacity: 0.92; }
.disclaimer-block ul { padding-left: 1.2rem; }
.disclaimer-block ul li { margin-bottom: 8px; }
.disclaimer-block .highlight { color: var(--accent-color); font-weight: 600; }
.disclaimer-note { background: rgba(251, 146, 60, 0.07); border-left: 4px solid var(--accent-color); padding: 16px 20px; border-radius: 0 10px 10px 0; margin-top: 20px; }
.disclaimer-note p { margin: 0; color: var(--text-color); font-size: 0.95rem; }
.back-home-link { display: inline-flex; align-items: center; gap: 8px; color: var(--main-color); text-decoration: none; font-weight: 600; margin-top: 15px; transition: all 0.3s; }
.back-home-link:hover { color: var(--accent-color); transform: translateX(-4px); }
.disclaimer-section { padding: 50px 0; }
.disclaimer-block { padding: 22px; }

/* --- 子页面追加 --- */
/* 确保隐私页内的小标题与品牌色呼应 */
    .privacy-title {
      color: var(--main-color);
      border-left: 4px solid var(--accent-color);
      padding-left: 1rem;
      margin: 2.5rem 0 1.2rem 0;
      font-weight: 700;
      font-size: 1.5rem;
    }
.privacy-lead {
      background: rgba(34, 211, 238, 0.06);
      border: 1px solid var(--border-light);
      border-radius: 1rem;
      padding: 1.5rem 1.8rem;
      margin-bottom: 2rem;
    }
.privacy-block {
      background: var(--card-bg);
      border-radius: 1.25rem;
      padding: 1.8rem 2rem;
      margin-bottom: 1.5rem;
      border: 1px solid var(--border-light);
      backdrop-filter: blur(6px);
    }
.privacy-block p, .privacy-block li {
      color: var(--text-color);
      line-height: 1.75;
    }
.privacy-block strong {
      color: var(--main-color);
      font-weight: 600;
    }
.privacy-list {
      padding-left: 1.4rem;
      list-style-type: none;
    }
.privacy-list li {
      margin-bottom: 0.5rem;
      position: relative;
    }
.privacy-list li::before {
      content: "🐾";
      position: absolute;
      left: -1.6rem;
      top: 0.1rem;
      font-size: 1rem;
      opacity: 0.8;
    }
.text-accent {
      color: var(--accent-color);
    }
.footer-note {
      font-size: 0.9rem;
      opacity: 0.75;
    }

/* --- Bootstrap 组件配色适配(程序自动补,避免白底黑字) --- */
.accordion-header { background:transparent !important; }