/* roulang page: index */
:root{
    --bg:#070910;
    --bg-2:#0b1020;
    --panel:#10182b;
    --panel-2:#141d34;
    --panel-3:#18223d;
    --line:rgba(170,185,255,.13);
    --line-strong:rgba(142,107,255,.32);
    --text:#edf2ff;
    --muted:#9aa6c8;
    --muted-2:#7f8ab0;
    --accent:#8b5cf6;
    --accent-2:#22d3ee;
    --accent-3:#ec4899;
    --success:#2dd4bf;
    --warning:#f59e0b;
    --danger:#fb7185;
    --radius:20px;
    --radius-sm:14px;
    --radius-lg:28px;
    --shadow:0 20px 60px rgba(0,0,0,.38);
    --shadow-soft:0 12px 30px rgba(3,8,24,.32);
    --container:1280px;
    --transition:all .24s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    color:var(--text);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    line-height:1.7;
    background:
        radial-gradient(circle at 12% 10%, rgba(139,92,246,.18), transparent 26%),
        radial-gradient(circle at 88% 14%, rgba(34,211,238,.12), transparent 22%),
        radial-gradient(circle at 60% 90%, rgba(236,72,153,.08), transparent 20%),
        linear-gradient(180deg, #060810 0%, #090d18 38%, #070910 100%);
    min-height:100vh;
    overflow-x:hidden;
}
body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    background-image:
        linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
    background-size:72px 72px;
    mask-image:linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,.45) 70%, transparent);
    opacity:.35;
    z-index:-1;
}
body::after{
    content:"";
    position:fixed;
    inset:auto -10% 0 -10%;
    height:260px;
    background:linear-gradient(180deg, transparent, rgba(139,92,246,.08), transparent);
    pointer-events:none;
    z-index:-1;
}
a{
    color:inherit;
    text-decoration:none;
    transition:var(--transition);
}
a:hover{color:#fff}
img{max-width:100%;display:block}
button,input,textarea,select{
    font:inherit;
    color:inherit;
}
::selection{
    background:rgba(139,92,246,.35);
    color:#fff;
}
.container-xxl, .container-xl, .container-lg, .container-md, .container-sm, .container{
    max-width:var(--container);
}
section{
    position:relative;
    scroll-margin-top:110px;
}
.section-shell{
    padding:84px 0;
}
.section-shell + .section-shell{
    border-top:1px solid rgba(255,255,255,.04);
}
.site-header{
    position:sticky;
    top:0;
    z-index:1030;
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    background:rgba(6,10,18,.68);
    border-bottom:1px solid rgba(255,255,255,.06);
    transition:var(--transition);
}
.site-header.is-scrolled{
    background:rgba(6,10,18,.84);
    box-shadow:0 14px 40px rgba(0,0,0,.28);
}
.header-inner{
    min-height:76px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
}
.brand{
    display:inline-flex;
    align-items:center;
    gap:12px;
    flex:0 0 auto;
}
.brand-mark{
    width:42px;
    height:42px;
    border-radius:14px;
    display:grid;
    place-items:center;
    color:#fff;
    background:linear-gradient(135deg, var(--accent), var(--accent-2));
    box-shadow:0 12px 24px rgba(139,92,246,.28);
}
.brand-text{
    font-weight:800;
    letter-spacing:.03em;
    font-size:1.08rem;
}
.top-nav{
    display:flex;
    align-items:center;
    gap:8px;
    margin-left:auto;
}
.top-nav .nav-link{
    padding:.6rem .95rem;
    border-radius:999px;
    color:var(--muted);
    border:1px solid transparent;
    font-size:.96rem;
}
.top-nav .nav-link:hover,
.top-nav .nav-link:focus-visible,
.top-nav .nav-link.active{
    color:#fff;
    border-color:rgba(255,255,255,.1);
    background:rgba(255,255,255,.03);
}
.header-tools{
    display:flex;
    align-items:center;
    gap:12px;
    flex:0 0 auto;
}
.header-search{
    min-width:280px;
    display:flex;
    align-items:center;
    border:1px solid rgba(255,255,255,.1);
    border-radius:999px;
    overflow:hidden;
    background:rgba(255,255,255,.03);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}
.header-search input{
    flex:1;
    border:0;
    background:transparent;
    padding:.7rem .95rem;
    color:var(--text);
    outline:none;
}
.header-search input::placeholder{color:#8590b7}
.header-search button{
    width:46px;
    height:44px;
    border:0;
    background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(34,211,238,.9));
    color:#fff;
    transition:var(--transition);
}
.header-search button:hover{
    filter:brightness(1.08);
}
.header-search:focus-within{
    border-color:rgba(34,211,238,.4);
    box-shadow:0 0 0 3px rgba(34,211,238,.09);
}
.btn{
    --bs-btn-padding-x:1rem;
    --bs-btn-padding-y:.78rem;
    border-radius:999px;
    font-weight:700;
    letter-spacing:.01em;
    transition:var(--transition);
    border:1px solid transparent;
}
.btn:focus,
.btn:active,
.btn:focus-visible{
    box-shadow:none !important;
    outline:none !important;
}
.btn-neon{
    color:#fff;
    background:linear-gradient(135deg, var(--accent), var(--accent-2));
    border-color:rgba(255,255,255,.06);
    box-shadow:0 14px 34px rgba(139,92,246,.22);
}
.btn-neon:hover{
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 18px 42px rgba(139,92,246,.28);
    filter:brightness(1.03);
}
.btn-outline-neon{
    color:var(--text);
    border-color:rgba(255,255,255,.14);
    background:rgba(255,255,255,.02);
}
.btn-outline-neon:hover{
    color:#fff;
    border-color:rgba(34,211,238,.42);
    background:rgba(34,211,238,.08);
    transform:translateY(-2px);
}
.btn-sm{
    padding:.62rem .95rem;
    font-size:.93rem;
}
.panel{
    position:relative;
    background:linear-gradient(180deg, rgba(18,25,46,.9), rgba(11,16,32,.92));
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-soft);
    overflow:hidden;
}
.panel::before{
    content:"";
    position:absolute;
    inset:0;
    background:
        linear-gradient(120deg, rgba(255,255,255,.06), transparent 20%),
        radial-gradient(circle at top right, rgba(34,211,238,.1), transparent 24%);
    pointer-events:none;
    opacity:.8;
}
.panel:hover{
    transform:translateY(-3px);
    border-color:rgba(139,92,255,.3);
    box-shadow:0 18px 42px rgba(0,0,0,.42);
}
.hero-wrap{
    padding:46px 0 18px;
}
.hero-shell{
    position:relative;
    border-radius:32px;
    border:1px solid rgba(255,255,255,.08);
    overflow:hidden;
    background:
        radial-gradient(circle at 18% 20%, rgba(139,92,246,.16), transparent 24%),
        radial-gradient(circle at 85% 15%, rgba(34,211,238,.1), transparent 21%),
        linear-gradient(180deg, rgba(16,24,43,.94), rgba(8,12,24,.96));
    box-shadow:var(--shadow);
    padding:32px;
}
.hero-shell::after{
    content:"";
    position:absolute;
    inset:auto -15% -18% auto;
    width:360px;
    height:360px;
    background:radial-gradient(circle, rgba(139,92,246,.15), transparent 65%);
    filter:blur(4px);
    pointer-events:none;
}
.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:.55rem;
    padding:.45rem .8rem;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.1);
    background:rgba(255,255,255,.03);
    color:#d4ddff;
    font-size:.88rem;
    letter-spacing:.03em;
}
.hero-title{
    margin:18px 0 14px;
    font-size:clamp(2.3rem, 4vw, 4.4rem);
    line-height:1.05;
    font-weight:900;
    letter-spacing:-.03em;
}
.hero-title span{
    background:linear-gradient(90deg, #fff, #cfd7ff 40%, #84f6ff 78%);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
}
.hero-desc{
    max-width:38rem;
    color:var(--muted);
    font-size:1.04rem;
    line-height:1.9;
}
.hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin:26px 0 18px;
}
.hero-notes{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:24px;
}
.chip{
    display:inline-flex;
    align-items:center;
    gap:.5rem;
    padding:.52rem .78rem;
    border-radius:999px;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
    color:#dfe6ff;
    font-size:.9rem;
}
.hero-checklist{
    margin:18px 0 0;
    padding:0;
    list-style:none;
    display:grid;
    gap:10px;
}
.hero-checklist li{
    display:flex;
    align-items:flex-start;
    gap:12px;
    color:#cdd6f4;
}
.hero-checklist i{
    margin-top:.25rem;
    color:var(--success);
}
.hero-right{
    height:100%;
    display:flex;
    flex-direction:column;
    gap:16px;
}
.hero-panel{
    padding:22px;
    height:100%;
}
.panel-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    margin-bottom:16px;
}
.badge-soft{
    display:inline-flex;
    align-items:center;
    gap:.45rem;
    padding:.4rem .72rem;
    border-radius:999px;
    font-size:.84rem;
    color:#dfe6ff;
    background:linear-gradient(135deg, rgba(139,92,246,.18), rgba(34,211,238,.14));
    border:1px solid rgba(255,255,255,.08);
}
.time-pill{
    display:inline-flex;
    align-items:center;
    gap:.45rem;
    padding:.4rem .72rem;
    border-radius:999px;
    color:#bfd0ff;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
    font-size:.84rem;
}
.compare-grid{
    display:grid;
    grid-template-columns:repeat(3, minmax(0, 1fr));
    gap:12px;
}
.compare-card{
    min-height:172px;
    padding:18px;
    border-radius:22px;
    background:linear-gradient(180deg, rgba(17,24,42,.95), rgba(11,16,30,.98));
    border:1px solid rgba(255,255,255,.07);
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    position:relative;
    overflow:hidden;
    transition:var(--transition);
}
.compare-card::after{
    content:"";
    position:absolute;
    inset:auto -18% -18% auto;
    width:110px;
    height:110px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(255,255,255,.12), transparent 68%);
    pointer-events:none;
}
.compare-card:hover{
    transform:translateY(-3px);
    border-color:rgba(34,211,238,.28);
}
.compare-card.featured{
    background:
        linear-gradient(180deg, rgba(139,92,246,.22), rgba(11,16,30,.95)),
        linear-gradient(135deg, rgba(34,211,238,.06), rgba(236,72,153,.08));
    border-color:rgba(139,92,246,.42);
    box-shadow:0 18px 34px rgba(139,92,246,.18);
}
.compare-card h3{
    margin:10px 0 8px;
    font-size:1.06rem;
    font-weight:800;
}
.compare-card p{
    margin:0;
    color:var(--muted);
    font-size:.94rem;
    line-height:1.7;
}
.compare-card .tag{
    display:inline-flex;
    align-self:flex-start;
    padding:.3rem .58rem;
    border-radius:999px;
    font-size:.78rem;
    color:#eff4ff;
    background:rgba(255,255,255,.07);
}
.hero-stats{
    display:grid;
    grid-template-columns:repeat(3, minmax(0, 1fr));
    gap:12px;
}
.hero-stat{
    padding:14px 16px;
    border-radius:20px;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
    color:#d5defb;
    font-size:.9rem;
}
.hero-stat strong{
    display:block;
    margin-top:4px;
    font-size:1.15rem;
    color:#fff;
    letter-spacing:.01em;
}
.section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:18px;
    margin-bottom:22px;
}
.section-head .copy{
    max-width:760px;
}
.section-kicker{
    display:inline-flex;
    align-items:center;
    gap:.5rem;
    color:#cfd8ff;
    font-size:.88rem;
    text-transform:uppercase;
    letter-spacing:.12em;
}
.section-title{
    margin:10px 0 0;
    font-size:clamp(1.5rem, 2.2vw, 2.4rem);
    line-height:1.18;
    font-weight:900;
}
.section-desc{
    margin:12px 0 0;
    color:var(--muted);
    line-height:1.9;
    max-width:58rem;
}
.link-arrow{
    color:#dbe7ff;
    display:inline-flex;
    align-items:center;
    gap:.45rem;
    font-weight:700;
}
.link-arrow:hover{
    color:#fff;
    gap:.6rem;
}
.feature-grid{
    display:grid;
    grid-template-columns:1.2fr .8fr;
    gap:18px;
}
.feature-lead{
    padding:28px;
    min-height:100%;
}
.feature-index{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:52px;
    height:52px;
    border-radius:18px;
    background:linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.14));
    border:1px solid rgba(255,255,255,.08);
    font-weight:900;
    color:#fff;
    margin-bottom:18px;
}
.feature-lead h3,
.side-card h3,
.showcase-main h3,
.latest-card h3,
.rank-head h3,
.contact-card h3,
.timeline-step h3{
    font-weight:850;
    letter-spacing:-.02em;
}
.feature-lead h3{
    font-size:1.42rem;
    margin-bottom:12px;
}
.feature-lead p{
    color:var(--muted);
    margin-bottom:18px;
}
.feature-list{
    display:grid;
    gap:12px;
}
.side-card{
    padding:18px;
}
.side-card + .side-card{margin-top:12px}
.side-card .mini-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    margin-bottom:14px;
}
.side-card h3{
    font-size:1.05rem;
    margin:8px 0 8px;
}
.side-card p{
    margin:0;
    color:var(--muted);
    font-size:.95rem;
    line-height:1.8;
}
.side-card .icon-box{
    width:44px;
    height:44px;
    border-radius:14px;
    display:grid;
    place-items:center;
    color:#fff;
    background:linear-gradient(135deg, rgba(139,92,246,.16), rgba(34,211,238,.14));
    border:1px solid rgba(255,255,255,.08);
}
.meta-row{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin-top:14px;
}
.meta-row .mini-chip{
    display:inline-flex;
    align-items:center;
    gap:.38rem;
    padding:.34rem .6rem;
    border-radius:999px;
    background:rgba(255,255,255,.03);
    color:#d9e2ff;
    border:1px solid rgba(255,255,255,.08);
    font-size:.8rem;
}
.stats-grid{
    display:grid;
    grid-template-columns:repeat(4, minmax(0, 1fr));
    gap:16px;
}
.stat-card{
    padding:22px;
    border-radius:var(--radius);
}
.stat-top{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:12px;
    margin-bottom:10px;
}
.stat-value{
    font-size:clamp(2rem, 4vw, 3rem);
    line-height:1;
    font-weight:900;
    letter-spacing:-.04em;
}
.stat-unit{
    color:#c8d2ff;
    font-size:.92rem;
    margin-bottom:.34rem;
}
.stat-label{
    color:#ecf1ff;
    font-size:1.02rem;
    font-weight:800;
}
.stat-desc{
    color:var(--muted);
    margin:8px 0 0;
    font-size:.93rem;
    line-height:1.8;
}
.progress-shell{
    margin-top:16px;
    padding-top:14px;
    border-top:1px solid rgba(255,255,255,.06);
}
.progress-track{
    height:8px;
    border-radius:999px;
    background:rgba(255,255,255,.06);
    overflow:hidden;
}
.progress-fill{
    height:100%;
    border-radius:inherit;
    background:linear-gradient(90deg, var(--accent), var(--accent-2));
}
.progress-note{
    display:flex;
    justify-content:space-between;
    margin-top:8px;
    color:var(--muted-2);
    font-size:.82rem;
}
.showcase-grid{
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:18px;
}
.showcase-main{
    padding:24px;
    min-height:100%;
}
.cover-surface{
    position:relative;
    min-height:340px;
    border-radius:24px;
    overflow:hidden;
    background:
        radial-gradient(circle at 25% 20%, rgba(34,211,238,.22), transparent 24%),
        radial-gradient(circle at 80% 20%, rgba(236,72,153,.16), transparent 18%),
        linear-gradient(135deg, rgba(139,92,246,.22), rgba(9,12,24,.95) 58%, rgba(10,15,30,.98));
    border:1px solid rgba(255,255,255,.08);
}
.cover-surface::before,
.cover-surface::after{
    content:"";
    position:absolute;
    border-radius:50%;
    filter:blur(0);
    pointer-events:none;
}
.cover-surface::before{
    inset:28px auto auto 24px;
    width:120px;
    height:120px;
    background:radial-gradient(circle, rgba(255,255,255,.18), transparent 72%);
}
.cover-surface::after{
    inset:auto 14px 12px auto;
    width:180px;
    height:180px;
    background:radial-gradient(circle, rgba(34,211,238,.15), transparent 70%);
}
.cover-layers{
    position:absolute;
    inset:0;
    padding:26px;
    display:flex;
    flex-direction:column;
    justify-content:space-between;
}
.cover-layers .cover-top{
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:12px;
}
.cover-badge{
    display:inline-flex;
    align-items:center;
    gap:.45rem;
    padding:.4rem .7rem;
    border-radius:999px;
    font-size:.82rem;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.08);
}
.cover-mini{
    width:88px;
    height:88px;
    border-radius:22px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.1);
    display:grid;
    place-items:center;
    color:#fff;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.cover-mini i{
    font-size:1.9rem;
    color:rgba(255,255,255,.88);
}
.cover-copy{
    max-width:440px;
}
.cover-copy h3{
    margin:0 0 10px;
    font-size:1.6rem;
}
.cover-copy p{
    margin:0;
    color:#d7e0ff;
    line-height:1.85;
}
.showcase-side{
    display:grid;
    gap:14px;
}
.small-showcase{
    padding:18px;
}
.small-showcase .row-top{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:10px;
    margin-bottom:14px;
}
.small-showcase h3{
    margin:10px 0 8px;
    font-size:1.06rem;
}
.small-showcase p{
    margin:0;
    color:var(--muted);
    line-height:1.78;
    font-size:.94rem;
}
.small-showcase .thumb{
    height:120px;
    border-radius:18px;
    border:1px solid rgba(255,255,255,.08);
    background:
        linear-gradient(135deg, rgba(139,92,246,.2), rgba(34,211,238,.12)),
        linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
    position:relative;
    overflow:hidden;
}
.small-showcase .thumb::before{
    content:"";
    position:absolute;
    inset:-20%;
    background:
        radial-gradient(circle at 20% 30%, rgba(255,255,255,.2), transparent 26%),
        radial-gradient(circle at 70% 60%, rgba(255,255,255,.12), transparent 22%);
}
.rank-list{
    display:grid;
    gap:12px;
}
.rank-item{
    display:flex;
    align-items:center;
    gap:14px;
    padding:14px 16px;
    border-radius:18px;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
    transition:var(--transition);
}
.rank-item:hover{
    transform:translateY(-2px);
    border-color:rgba(34,211,238,.26);
}
.rank-no{
    width:36px;
    height:36px;
    border-radius:12px;
    flex:0 0 auto;
    display:grid;
    place-items:center;
    font-weight:900;
    background:linear-gradient(135deg, rgba(139,92,246,.18), rgba(34,211,238,.12));
    color:#fff;
}
.rank-body{
    flex:1;
    min-width:0;
}
.rank-body strong{
    display:block;
    font-size:1rem;
    margin-bottom:3px;
}
.rank-meta{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    color:var(--muted);
    font-size:.84rem;
}
.trend-up{
    color:var(--success);
    font-weight:800;
    font-size:.88rem;
}
.trend-hot{
    color:var(--warning);
    font-weight:800;
    font-size:.88rem;
}
.rank-track{
    margin-top:10px;
    height:6px;
    border-radius:999px;
    background:rgba(255,255,255,.06);
    overflow:hidden;
}
.rank-track span{
    display:block;
    height:100%;
    border-radius:inherit;
    background:linear-gradient(90deg, var(--accent), var(--accent-2));
}
.latest-grid{
    display:grid;
    grid-template-columns:1.35fr .75fr;
    gap:18px;
}
.latest-list{
    display:grid;
    gap:14px;
}
.latest-card{
    display:block;
    padding:18px;
    border-radius:22px;
    background:linear-gradient(180deg, rgba(18,25,46,.95), rgba(10,14,28,.96));
    border:1px solid rgba(255,255,255,.08);
    box-shadow:var(--shadow-soft);
    transition:var(--transition);
}
.latest-card:hover{
    transform:translateY(-3px);
    border-color:rgba(34,211,238,.26);
}
.latest-card h3{
    margin:10px 0 8px;
    font-size:1.12rem;
    line-height:1.45;
}
.latest-card p{
    margin:0;
    color:var(--muted);
    line-height:1.8;
}
.latest-card .card-meta{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    align-items:center;
    justify-content:space-between;
}
.latest-card .tag-group{
    display:flex;
    flex-wrap:wrap;
    gap:8px;
}
.latest-card .tag{
    display:inline-flex;
    align-items:center;
    gap:.4rem;
    padding:.32rem .6rem;
    border-radius:999px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.08);
    color:#dce4ff;
    font-size:.8rem;
}
.latest-card .read-more{
    margin-top:14px;
    display:inline-flex;
    align-items:center;
    gap:.45rem;
    color:#eef3ff;
    font-weight:800;
}
.latest-card--featured{
    position:relative;
    overflow:hidden;
}
.latest-card--featured::after{
    content:"";
    position:absolute;
    inset:auto -20% -28% auto;
    width:230px;
    height:230px;
    background:radial-gradient(circle, rgba(34,211,238,.16), transparent 65%);
    pointer-events:none;
}
.latest-card--compact{
    min-height:100%;
}
.latest-rail{
    display:grid;
    gap:14px;
}
.rail-card{
    padding:20px;
}
.rail-card h3{
    font-size:1.06rem;
    margin:10px 0 10px;
}
.rail-card p{
    margin:0;
    color:var(--muted);
    line-height:1.8;
    font-size:.94rem;
}
.empty-state{
    min-height:280px;
    border-radius:24px;
    border:1px dashed rgba(255,255,255,.12);
    background:rgba(255,255,255,.02);
    display:grid;
    place-items:center;
    text-align:center;
    padding:24px;
}
.empty-state .empty-icon{
    width:66px;
    height:66px;
    margin:0 auto 16px;
    border-radius:22px;
    display:grid;
    place-items:center;
    background:linear-gradient(135deg, rgba(139,92,246,.16), rgba(34,211,238,.12));
    border:1px solid rgba(255,255,255,.08);
    color:#fff;
    font-size:1.35rem;
}
.empty-state p{
    margin:0;
    color:#d9e3ff;
    font-size:1rem;
}
.timeline{
    display:grid;
    grid-template-columns:repeat(4, minmax(0, 1fr));
    gap:14px;
}
.timeline-step{
    position:relative;
    padding:22px;
    border-radius:22px;
}
.timeline-step::before{
    content:"";
    position:absolute;
    top:28px;
    left:24px;
    right:24px;
    height:1px;
    background:linear-gradient(90deg, rgba(139,92,246,.65), rgba(34,211,238,.45), transparent);
    opacity:.28;
}
.timeline-step .step-node{
    width:46px;
    height:46px;
    border-radius:16px;
    display:grid;
    place-items:center;
    font-weight:900;
    background:linear-gradient(135deg, rgba(139,92,246,.22), rgba(34,211,238,.14));
    border:1px solid rgba(255,255,255,.08);
    margin-bottom:18px;
}
.timeline-step h3{
    margin-bottom:10px;
    font-size:1.06rem;
}
.timeline-step p{
    margin:0;
    color:var(--muted);
    line-height:1.8;
    font-size:.95rem;
}
.faq-wrap .accordion{
    --bs-accordion-bg:transparent;
    --bs-accordion-border-color:transparent;
    --bs-accordion-color:var(--text);
    --bs-accordion-btn-padding-x:1.2rem;
    --bs-accordion-btn-padding-y:1.1rem;
    --bs-accordion-active-bg:transparent;
    --bs-accordion-active-color:#fff;
    --bs-accordion-btn-focus-border-color:transparent;
    --bs-accordion-btn-focus-box-shadow:none;
    display:grid;
    gap:14px;
}
.accordion-item{
    border:1px solid rgba(255,255,255,.08) !important;
    background:linear-gradient(180deg, rgba(17,25,44,.95), rgba(10,15,30,.96));
    border-radius:20px !important;
    overflow:hidden;
    box-shadow:var(--shadow-soft);
}
.accordion-button{
    background:transparent !important;
    color:var(--text) !important;
    font-weight:800;
    box-shadow:none !important;
}
.accordion-button::after{
    filter:invert(1) grayscale(1) brightness(1.1);
}
.accordion-button:not(.collapsed){
    border-bottom:1px solid rgba(255,255,255,.06);
}
.accordion-body{
    color:var(--muted);
    line-height:1.9;
    padding:0 1.2rem 1.15rem;
}
.contact-grid{
    display:grid;
    grid-template-columns:1fr 1.05fr;
    gap:18px;
}
.contact-card{
    padding:24px;
}
.contact-card p{
    color:var(--muted);
    margin-bottom:16px;
    line-height:1.85;
}
.contact-points{
    display:grid;
    gap:12px;
    margin-top:18px;
}
.contact-point{
    display:flex;
    gap:12px;
    align-items:flex-start;
    padding:14px 15px;
    border-radius:18px;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
}
.contact-point i{
    width:40px;
    height:40px;
    border-radius:14px;
    display:grid;
    place-items:center;
    color:#fff;
    background:linear-gradient(135deg, rgba(139,92,246,.2), rgba(34,211,238,.12));
    flex:0 0 auto;
}
.contact-point strong{
    display:block;
    color:#fff;
    margin-bottom:3px;
}
.contact-point span{
    display:block;
    color:var(--muted);
    font-size:.92rem;
    line-height:1.75;
}
.form-card{
    padding:24px;
}
.form-label{
    color:#e8eeff;
    font-weight:700;
    margin-bottom:.45rem;
}
.form-control,
.form-select{
    background:rgba(255,255,255,.03);
    color:var(--text);
    border:1px solid rgba(255,255,255,.1);
    border-radius:16px;
    padding:.82rem 1rem;
    box-shadow:none !important;
}
.form-control::placeholder{
    color:#8893b7;
}
.form-control:focus,
.form-select:focus{
    background:rgba(255,255,255,.04);
    border-color:rgba(34,211,238,.42);
    color:var(--text);
    box-shadow:0 0 0 3px rgba(34,211,238,.1) !important;
}
textarea.form-control{
    min-height:140px;
    resize:vertical;
}
.form-check{
    margin-top:6px;
}
.form-check-input{
    background-color:rgba(255,255,255,.08);
    border-color:rgba(255,255,255,.18);
    box-shadow:none !important;
}
.form-check-input:checked{
    background-color:var(--accent);
    border-color:var(--accent);
}
.form-check-label{
    color:var(--muted);
}
.form-foot{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    justify-content:space-between;
    align-items:center;
    margin-top:14px;
    color:var(--muted-2);
    font-size:.9rem;
}
.footer{
    padding:34px 0 42px;
    border-top:1px solid rgba(255,255,255,.06);
    background:linear-gradient(180deg, rgba(6,9,16,.12), rgba(6,9,16,.38));
}
.footer-inner{
    display:grid;
    gap:18px;
}
.footer-brand{
    display:flex;
    align-items:center;
    gap:12px;
}
.footer-brand .brand-mark{
    width:38px;
    height:38px;
    border-radius:14px;
}
.footer-links{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}
.footer-links a{
    padding:.45rem .78rem;
    border-radius:999px;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
    color:#d5defb;
    font-size:.92rem;
}
.footer-links a:hover{
    color:#fff;
    border-color:rgba(34,211,238,.32);
    background:rgba(34,211,238,.06);
}
.footer-meta{
    display:flex;
    flex-wrap:wrap;
    gap:12px 18px;
    color:var(--muted);
    font-size:.92rem;
}
.footer-meta a{
    color:#dbe7ff;
}
.footer-meta a:hover{color:#fff}
.badge-inline{
    display:inline-flex;
    align-items:center;
    gap:.38rem;
    padding:.34rem .6rem;
    border-radius:999px;
    background:rgba(255,255,255,.04);
    border:1px solid rgba(255,255,255,.08);
    color:#dde5ff;
    font-size:.82rem;
}
.text-glow{
    text-shadow:0 0 24px rgba(139,92,246,.18);
}
.small-muted{
    color:var(--muted);
    font-size:.92rem;
    line-height:1.85;
}
.list-clean{
    margin:0;
    padding:0;
    list-style:none;
}
.list-clean li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    color:#dfe6ff;
}
.list-clean li + li{
    margin-top:10px;
}
.list-clean i{
    color:var(--accent-2);
    margin-top:.3rem;
}
.focus-ring:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{
    outline:2px solid rgba(34,211,238,.65);
    outline-offset:3px;
}
@media (min-width: 992px){
    .hero-shell{padding:34px}
    .hero-right{padding-left:6px}
}
@media (max-width: 1199.98px){
    .compare-grid,
    .hero-stats,
    .stats-grid,
    .timeline{
        grid-template-columns:repeat(2, minmax(0, 1fr));
    }
    .feature-grid,
    .showcase-grid,
    .latest-grid,
    .contact-grid{
        grid-template-columns:1fr;
    }
}
@media (max-width: 991.98px){
    .header-inner{
        flex-wrap:wrap;
        justify-content:flex-start;
        padding:12px 0;
    }
    .top-nav{margin-left:0}
    .header-tools{margin-left:auto}
    .section-shell{padding:72px 0}
    .hero-wrap{padding-top:28px}
    .hero-shell{padding:26px}
    .section-head{
        flex-direction:column;
        align-items:flex-start;
    }
}
@media (max-width: 767.98px){
    .header-search{display:none !important}
    .hero-shell{border-radius:26px}
    .compare-grid,
    .hero-stats,
    .stats-grid,
    .timeline{
        grid-template-columns:1fr;
    }
    .compare-card{min-height:auto}
    .hero-title{font-size:clamp(2.05rem, 10vw, 3.1rem)}
    .hero-desc{font-size:1rem}
    .hero-actions{gap:10px}
    .btn{width:100%;justify-content:center}
    .hero-actions .btn{width:calc(50% - 5px)}
    .footer-meta,.footer-links,.hero-notes{gap:8px}
}
@media (max-width: 575.98px){
    .container{
        padding-left:16px;
        padding-right:16px;
    }
    .site-header{border-bottom-color:rgba(255,255,255,.08)}
    .header-inner{
        gap:12px;
    }
    .top-nav .nav-link{
        padding:.48rem .72rem;
    }
    .hero-shell{
        padding:20px;
        border-radius:22px;
    }
    .panel,
    .stat-card,
    .small-showcase,
    .feature-lead,
    .contact-card,
    .form-card{
        border-radius:18px;
    }
    .hero-actions .btn{
        width:100%;
    }
    .hero-title{
        letter-spacing:-.04em;
    }
    .cover-surface{
        min-height:280px;
    }
}

/* roulang page: article */
:root{
            --bg:#070910;
            --bg-2:#0b1020;
            --panel:#10182b;
            --panel-2:#141d34;
            --panel-3:#18223d;
            --line:rgba(170,185,255,.13);
            --line-strong:rgba(142,107,255,.32);
            --text:#edf2ff;
            --muted:#9aa6c8;
            --muted-2:#7f8ab0;
            --accent:#8b5cf6;
            --accent-2:#22d3ee;
            --accent-3:#ec4899;
            --success:#2dd4bf;
            --warning:#f59e0b;
            --danger:#fb7185;
            --radius:20px;
            --radius-sm:14px;
            --radius-lg:28px;
            --shadow:0 20px 60px rgba(0,0,0,.38);
            --shadow-soft:0 12px 30px rgba(3,8,24,.32);
            --container:1280px;
            --transition:all .24s ease;
        }
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--text);
            font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
            line-height:1.7;
            background:
                radial-gradient(circle at 12% 10%, rgba(139,92,246,.18), transparent 26%),
                radial-gradient(circle at 88% 14%, rgba(34,211,238,.12), transparent 22%),
                radial-gradient(circle at 60% 90%, rgba(236,72,153,.08), transparent 20%),
                linear-gradient(180deg, #060810 0%, #090d18 38%, #070910 100%);
            min-height:100vh;
            overflow-x:hidden;
        }
        body::before{
            content:"";
            position:fixed;
            inset:0;
            pointer-events:none;
            background-image:
                linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
            background-size:72px 72px;
            mask-image:linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,.45) 70%, transparent);
            opacity:.35;
            z-index:-1;
        }
        body::after{
            content:"";
            position:fixed;
            inset:auto -10% 0 -10%;
            height:260px;
            background:linear-gradient(180deg, transparent, rgba(139,92,246,.08), transparent);
            pointer-events:none;
            z-index:-1;
        }
        a{
            color:inherit;
            text-decoration:none;
            transition:var(--transition);
        }
        a:hover{color:#fff}
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible{
            outline:none;
            box-shadow:0 0 0 3px rgba(34,211,238,.14);
        }
        img{max-width:100%;display:block}
        button,input,textarea,select{
            font:inherit;
            color:inherit;
        }
        .container-xxl, .container-xl, .container-lg, .container-md, .container-sm, .container{
            max-width:var(--container);
        }
        section{
            position:relative;
            scroll-margin-top:110px;
        }
        .section-shell{
            padding:42px 0 76px;
        }
        .section-shell + .section-shell{
            border-top:1px solid rgba(255,255,255,.04);
        }
        .site-header{
            position:sticky;
            top:0;
            z-index:1030;
            backdrop-filter:blur(18px);
            -webkit-backdrop-filter:blur(18px);
            background:rgba(6,10,18,.68);
            border-bottom:1px solid rgba(255,255,255,.06);
            transition:var(--transition);
        }
        .site-header.is-scrolled{
            background:rgba(6,10,18,.84);
            box-shadow:0 14px 40px rgba(0,0,0,.28);
        }
        .header-inner{
            min-height:76px;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:18px;
        }
        .brand{
            display:inline-flex;
            align-items:center;
            gap:12px;
            flex:0 0 auto;
        }
        .brand-mark{
            width:42px;
            height:42px;
            border-radius:14px;
            display:grid;
            place-items:center;
            color:#fff;
            background:linear-gradient(135deg, var(--accent), var(--accent-2));
            box-shadow:0 12px 24px rgba(139,92,246,.28);
        }
        .brand-text{
            font-weight:800;
            letter-spacing:.03em;
            font-size:1.08rem;
        }
        .top-nav{
            display:flex;
            align-items:center;
            gap:8px;
            margin-left:auto;
        }
        .top-nav .nav-link{
            padding:.6rem .95rem;
            border-radius:999px;
            color:var(--muted);
            border:1px solid transparent;
            font-size:.96rem;
        }
        .top-nav .nav-link:hover,
        .top-nav .nav-link:focus-visible,
        .top-nav .nav-link.active{
            color:#fff;
            border-color:rgba(255,255,255,.1);
            background:rgba(255,255,255,.03);
        }
        .header-tools{
            display:flex;
            align-items:center;
            gap:12px;
            flex:0 0 auto;
        }
        .header-search{
            min-width:280px;
            display:flex;
            align-items:center;
            border:1px solid rgba(255,255,255,.1);
            border-radius:999px;
            overflow:hidden;
            background:rgba(255,255,255,.03);
            box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
        }
        .header-search input{
            flex:1;
            border:0;
            background:transparent;
            padding:.7rem .95rem;
            color:var(--text);
            outline:none;
        }
        .header-search input::placeholder{color:#8590b7}
        .header-search button{
            width:46px;
            height:44px;
            border:0;
            background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(34,211,238,.9));
            color:#fff;
            transition:var(--transition);
        }
        .header-search button:hover{
            filter:brightness(1.08);
        }
        .header-search:focus-within{
            border-color:rgba(34,211,238,.4);
            box-shadow:0 0 0 3px rgba(34,211,238,.09);
        }
        .btn{
            --bs-btn-padding-x:1rem;
            --bs-btn-padding-y:.78rem;
            border-radius:999px;
            font-weight:700;
            letter-spacing:.01em;
            transition:var(--transition);
            border:1px solid transparent;
        }
        .btn:focus,
        .btn:active,
        .btn:focus-visible{
            box-shadow:none !important;
            outline:none !important;
        }
        .btn-neon{
            color:#fff;
            background:linear-gradient(135deg, var(--accent), var(--accent-2));
            border-color:rgba(255,255,255,.06);
            box-shadow:0 14px 34px rgba(139,92,246,.22);
        }
        .btn-neon:hover{
            color:#fff;
            transform:translateY(-2px);
            box-shadow:0 18px 42px rgba(139,92,246,.28);
            filter:brightness(1.03);
        }
        .btn-outline-neon{
            color:var(--text);
            border-color:rgba(255,255,255,.14);
            background:rgba(255,255,255,.02);
        }
        .btn-outline-neon:hover{
            color:#fff;
            border-color:rgba(34,211,238,.42);
            background:rgba(34,211,238,.08);
            transform:translateY(-2px);
        }
        .btn-sm{
            padding:.62rem .95rem;
            font-size:.93rem;
        }
        .hero-shell{
            position:relative;
            border-radius:32px;
            border:1px solid rgba(255,255,255,.08);
            overflow:hidden;
            background:
                radial-gradient(circle at 18% 20%, rgba(139,92,246,.16), transparent 24%),
                radial-gradient(circle at 85% 15%, rgba(34,211,238,.1), transparent 21%),
                linear-gradient(180deg, rgba(16,24,43,.94), rgba(8,12,24,.96));
            box-shadow:var(--shadow);
            padding:32px;
        }
        .hero-shell::after{
            content:"";
            position:absolute;
            inset:auto -15% -18% auto;
            width:360px;
            height:360px;
            background:radial-gradient(circle, rgba(139,92,246,.15), transparent 65%);
            filter:blur(4px);
            pointer-events:none;
        }
        .eyebrow{
            display:inline-flex;
            align-items:center;
            gap:.5rem;
            padding:.42rem .82rem;
            border-radius:999px;
            border:1px solid rgba(255,255,255,.1);
            background:rgba(255,255,255,.03);
            color:var(--muted);
            font-size:.92rem;
            letter-spacing:.02em;
        }
        .eyebrow strong{color:#fff}
        .page-hero{
            display:grid;
            grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);
            gap:28px;
            align-items:stretch;
        }
        .hero-copy{
            position:relative;
            z-index:1;
        }
        .hero-copy h1{
            margin:18px 0 14px;
            font-size:clamp(2rem,4vw,3.7rem);
            line-height:1.08;
            font-weight:900;
            letter-spacing:-.03em;
        }
        .hero-copy .lead{
            margin:0;
            color:var(--muted);
            font-size:1.06rem;
            max-width:62ch;
        }
        .hero-pills{
            display:flex;
            flex-wrap:wrap;
            gap:10px;
            margin-top:20px;
        }
        .pill{
            display:inline-flex;
            align-items:center;
            gap:.45rem;
            padding:.48rem .82rem;
            border-radius:999px;
            border:1px solid rgba(255,255,255,.1);
            background:rgba(255,255,255,.03);
            color:var(--text);
            font-size:.92rem;
        }
        .pill i{color:var(--accent-2)}
        .hero-actions{
            display:flex;
            flex-wrap:wrap;
            gap:12px;
            margin-top:24px;
        }
        .hero-panel{
            position:relative;
            z-index:1;
            border-radius:28px;
            border:1px solid rgba(255,255,255,.08);
            background:
                linear-gradient(180deg, rgba(18,27,48,.9), rgba(12,18,34,.96));
            box-shadow:var(--shadow-soft);
            padding:20px;
            overflow:hidden;
        }
        .hero-panel::before{
            content:"";
            position:absolute;
            inset:0;
            background:
                radial-gradient(circle at 90% 12%, rgba(34,211,238,.12), transparent 25%),
                radial-gradient(circle at 18% 76%, rgba(236,72,153,.08), transparent 20%);
            pointer-events:none;
        }
        .profile-strip{
            display:flex;
            align-items:center;
            gap:14px;
            padding-bottom:16px;
            border-bottom:1px solid rgba(255,255,255,.06);
            position:relative;
        }
        .profile-avatar{
            width:56px;
            height:56px;
            border-radius:18px;
            display:grid;
            place-items:center;
            background:linear-gradient(135deg, rgba(139,92,246,1), rgba(34,211,238,1));
            box-shadow:0 12px 26px rgba(139,92,246,.26);
            color:#fff;
            font-size:1.2rem;
            flex:0 0 auto;
        }
        .profile-name{
            font-weight:800;
            font-size:1.06rem;
            letter-spacing:.02em;
        }
        .profile-sub{
            color:var(--muted);
            font-size:.92rem;
        }
        .hero-metrics{
            display:grid;
            grid-template-columns:repeat(3,minmax(0,1fr));
            gap:12px;
            margin-top:16px;
        }
        .metric{
            padding:14px 14px 13px;
            border-radius:18px;
            background:rgba(255,255,255,.03);
            border:1px solid rgba(255,255,255,.08);
        }
        .metric .k{
            display:block;
            font-size:1.05rem;
            font-weight:800;
            color:#fff;
            line-height:1.2;
        }
        .metric .v{
            display:block;
            margin-top:6px;
            color:var(--muted);
            font-size:.9rem;
        }
        .mini-bar{
            margin-top:16px;
            padding:14px;
            border-radius:18px;
            background:rgba(255,255,255,.03);
            border:1px solid rgba(255,255,255,.08);
        }
        .mini-bar .label{
            display:flex;
            justify-content:space-between;
            color:var(--muted);
            font-size:.9rem;
            margin-bottom:10px;
        }
        .progress-track{
            height:10px;
            border-radius:999px;
            background:rgba(255,255,255,.06);
            overflow:hidden;
        }
        .progress-fill{
            height:100%;
            width:78%;
            border-radius:999px;
            background:linear-gradient(90deg, var(--accent), var(--accent-2));
            box-shadow:0 0 18px rgba(34,211,238,.18);
        }
        .bread{
            margin-top:18px;
            color:var(--muted-2);
            font-size:.94rem;
        }
        .bread a{
            color:var(--muted);
        }
        .bread a:hover{color:#fff}
        .article-grid{
            display:grid;
            grid-template-columns:minmax(0,1.1fr) 340px;
            gap:24px;
            align-items:start;
            margin-top:28px;
        }
        .panel{
            border-radius:28px;
            border:1px solid rgba(255,255,255,.08);
            background:linear-gradient(180deg, rgba(16,24,43,.92), rgba(12,18,34,.96));
            box-shadow:var(--shadow-soft);
            overflow:hidden;
        }
        .panel-head{
            padding:20px 22px 0;
        }
        .panel-body{
            padding:22px;
        }
        .section-title{
            margin:0;
            font-weight:900;
            line-height:1.16;
            letter-spacing:-.02em;
            font-size:1.5rem;
        }
        .section-subtitle{
            margin:10px 0 0;
            color:var(--muted);
            font-size:.98rem;
        }
        .meta-row{
            display:flex;
            flex-wrap:wrap;
            gap:10px;
            margin-top:16px;
        }
        .meta-chip{
            display:inline-flex;
            align-items:center;
            gap:.42rem;
            padding:.46rem .78rem;
            border-radius:999px;
            border:1px solid rgba(255,255,255,.1);
            background:rgba(255,255,255,.03);
            color:var(--muted);
            font-size:.88rem;
            white-space:nowrap;
        }
        .meta-chip i{color:var(--accent-2)}
        .article-content{
            color:#e7ecff;
            font-size:1.02rem;
        }
        .article-content p{
            margin:0 0 1rem;
            color:#e7ecff;
        }
        .article-content h2,
        .article-content h3,
        .article-content h4{
            margin:1.8rem 0 .9rem;
            color:#fff;
            font-weight:800;
            line-height:1.25;
            letter-spacing:-.02em;
        }
        .article-content h2{font-size:1.5rem}
        .article-content h3{font-size:1.22rem}
        .article-content h4{font-size:1.08rem}
        .article-content ul,
        .article-content ol{
            padding-left:1.25rem;
            margin:0 0 1rem;
        }
        .article-content li{
            margin:.35rem 0;
            color:#dde4ff;
        }
        .article-content a{
            color:#9fe7ff;
            text-decoration:underline;
            text-underline-offset:3px;
        }
        .article-content a:hover{color:#fff}
        .article-content blockquote{
            margin:1.4rem 0;
            padding:1rem 1.1rem;
            border-left:4px solid var(--accent-2);
            background:rgba(34,211,238,.06);
            border-radius:0 18px 18px 0;
            color:#f1f5ff;
        }
        .article-content hr{
            margin:1.6rem 0;
            border:0;
            height:1px;
            background:linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent);
            opacity:1;
        }
        .article-content img{
            margin:1.3rem 0;
            border-radius:18px;
            box-shadow:0 16px 34px rgba(0,0,0,.26);
        }
        .article-content table{
            width:100%;
            margin:1.2rem 0;
            border-collapse:separate;
            border-spacing:0;
            overflow:hidden;
            border-radius:18px;
            border:1px solid rgba(255,255,255,.08);
        }
        .article-content th,
        .article-content td{
            padding:.8rem .9rem;
            border-bottom:1px solid rgba(255,255,255,.06);
            color:#e8edff;
        }
        .article-content th{
            background:rgba(255,255,255,.04);
            color:#fff;
        }
        .article-content tr:last-child td{border-bottom:0}
        .side-stack{
            display:grid;
            gap:18px;
        }
        .side-card{
            padding:20px;
            border-radius:24px;
            background:linear-gradient(180deg, rgba(18,27,48,.92), rgba(12,18,34,.96));
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
        }
        .side-card-title{
            margin:0;
            font-size:1.02rem;
            font-weight:800;
            color:#fff;
        }
        .side-list{
            list-style:none;
            padding:0;
            margin:14px 0 0;
        }
        .side-list li + li{margin-top:10px}
        .side-link{
            display:flex;
            align-items:flex-start;
            justify-content:space-between;
            gap:10px;
            padding:12px 13px;
            border-radius:16px;
            border:1px solid rgba(255,255,255,.08);
            background:rgba(255,255,255,.03);
        }
        .side-link:hover{
            transform:translateY(-2px);
            border-color:rgba(34,211,238,.3);
            background:rgba(34,211,238,.07);
            color:#fff;
        }
        .side-link .txt{
            min-width:0;
        }
        .side-link .t{
            display:block;
            font-weight:700;
            color:#fff;
            line-height:1.35;
        }
        .side-link .s{
            display:block;
            color:var(--muted);
            font-size:.88rem;
            margin-top:4px;
        }
        .side-link .arrow{
            color:var(--accent-2);
            flex:0 0 auto;
            margin-top:2px;
        }
        .summary-grid{
            display:grid;
            grid-template-columns:repeat(2,minmax(0,1fr));
            gap:12px;
            margin-top:14px;
        }
        .summary-box{
            padding:14px;
            border-radius:18px;
            background:rgba(255,255,255,.03);
            border:1px solid rgba(255,255,255,.08);
        }
        .summary-box .lb{
            color:var(--muted);
            font-size:.88rem;
        }
        .summary-box .val{
            display:block;
            margin-top:6px;
            font-weight:800;
            color:#fff;
        }
        .cta-strip{
            margin-top:18px;
            padding:18px;
            border-radius:22px;
            background:
                linear-gradient(135deg, rgba(139,92,246,.16), rgba(34,211,238,.1)),
                rgba(255,255,255,.03);
            border:1px solid rgba(255,255,255,.08);
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:14px;
            flex-wrap:wrap;
        }
        .cta-strip p{
            margin:0;
            color:#eff3ff;
        }
        .latest-grid{
            display:grid;
            grid-template-columns:1.2fr .8fr .8fr;
            gap:18px;
            margin-top:22px;
        }
        .post-card{
            position:relative;
            padding:20px;
            border-radius:24px;
            background:linear-gradient(180deg, rgba(18,27,48,.92), rgba(12,18,34,.96));
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
            min-height:100%;
            overflow:hidden;
        }
        .post-card::before{
            content:"";
            position:absolute;
            inset:auto -12% -18% auto;
            width:180px;
            height:180px;
            background:radial-gradient(circle, rgba(139,92,246,.14), transparent 68%);
            pointer-events:none;
        }
        .post-top{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:10px;
        }
        .tag{
            display:inline-flex;
            align-items:center;
            gap:.35rem;
            padding:.36rem .7rem;
            border-radius:999px;
            border:1px solid rgba(255,255,255,.1);
            color:var(--muted);
            background:rgba(255,255,255,.03);
            font-size:.86rem;
        }
        .tag i{color:var(--accent-2)}
        .post-title{
            margin:14px 0 10px;
            font-size:1.14rem;
            font-weight:800;
            line-height:1.4;
        }
        .post-desc{
            margin:0;
            color:var(--muted);
            font-size:.95rem;
        }
        .post-meta{
            display:flex;
            flex-wrap:wrap;
            gap:8px;
            margin-top:14px;
        }
        .post-meta .meta-chip{font-size:.84rem}
        .timeline{
            display:grid;
            gap:14px;
            margin-top:18px;
        }
        .timeline-item{
            display:grid;
            grid-template-columns:auto 1fr;
            gap:14px;
            align-items:flex-start;
            position:relative;
            padding:14px 16px;
            border-radius:18px;
            background:rgba(255,255,255,.03);
            border:1px solid rgba(255,255,255,.08);
        }
        .timeline-item::after{
            content:"";
            position:absolute;
            left:28px;
            top:54px;
            bottom:-16px;
            width:1px;
            background:linear-gradient(180deg, rgba(34,211,238,.5), transparent);
            opacity:.55;
        }
        .timeline-item:last-child::after{display:none}
        .timeline-dot{
            width:38px;
            height:38px;
            border-radius:14px;
            display:grid;
            place-items:center;
            background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(34,211,238,.9));
            color:#fff;
            flex:0 0 auto;
            box-shadow:0 12px 24px rgba(139,92,246,.2);
        }
        .timeline-content h3{
            margin:0;
            font-size:1.02rem;
            font-weight:800;
            color:#fff;
        }
        .timeline-content p{
            margin:6px 0 0;
            color:var(--muted);
            font-size:.94rem;
        }
        .faq-wrap .accordion-item{
            background:transparent;
            border:1px solid rgba(255,255,255,.08);
            border-radius:18px !important;
            overflow:hidden;
            margin-bottom:12px;
            box-shadow:var(--shadow-soft);
        }
        .faq-wrap .accordion-button{
            background:linear-gradient(180deg, rgba(18,27,48,.96), rgba(12,18,34,.98));
            color:#fff;
            font-weight:700;
            border:0;
            box-shadow:none;
            padding:1.05rem 1.1rem;
        }
        .faq-wrap .accordion-button:not(.collapsed){
            color:#fff;
            background:linear-gradient(180deg, rgba(24,34,61,.98), rgba(14,20,38,.98));
            box-shadow:none;
        }
        .faq-wrap .accordion-button::after{
            filter:brightness(1.3) invert(1);
            opacity:.85;
        }
        .faq-wrap .accordion-body{
            background:rgba(255,255,255,.02);
            color:#dfe6ff;
            padding:1rem 1.1rem 1.1rem;
            line-height:1.8;
        }
        .contact-grid{
            display:grid;
            grid-template-columns:1fr 1.05fr;
            gap:22px;
            align-items:start;
        }
        .contact-card{
            padding:24px;
            border-radius:28px;
            background:linear-gradient(180deg, rgba(18,27,48,.92), rgba(12,18,34,.96));
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
        }
        .contact-note{
            color:var(--muted);
            margin:12px 0 0;
        }
        .form-control,
        .form-select,
        textarea.form-control{
            background:rgba(255,255,255,.03);
            border:1px solid rgba(255,255,255,.1);
            color:#fff;
            border-radius:16px;
            padding:.8rem .95rem;
            box-shadow:none;
        }
        .form-control::placeholder,
        textarea.form-control::placeholder{
            color:#8a95b9;
        }
        .form-control:focus,
        .form-select:focus,
        textarea.form-control:focus{
            background:rgba(255,255,255,.04);
            border-color:rgba(34,211,238,.45);
            color:#fff;
            box-shadow:0 0 0 3px rgba(34,211,238,.1);
        }
        .form-check-input{
            width:1.05rem;
            height:1.05rem;
            margin-top:.18rem;
            background-color:rgba(255,255,255,.04);
            border-color:rgba(255,255,255,.22);
        }
        .form-check-input:checked{
            background-color:var(--accent);
            border-color:var(--accent);
        }
        .form-check-label{
            color:var(--muted);
        }
        .form-hint{
            color:var(--muted-2);
            font-size:.9rem;
            margin-top:10px;
        }
        .empty-state{
            padding:56px 24px;
            text-align:center;
            border-radius:28px;
            background:linear-gradient(180deg, rgba(16,24,43,.92), rgba(12,18,34,.96));
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
        }
        .empty-icon{
            width:84px;
            height:84px;
            border-radius:28px;
            display:grid;
            place-items:center;
            margin:0 auto 18px;
            background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(34,211,238,.88));
            color:#fff;
            font-size:2rem;
            box-shadow:0 18px 32px rgba(139,92,246,.22);
        }
        .empty-state h2{
            margin:0 0 10px;
            font-size:1.8rem;
            font-weight:900;
        }
        .empty-state p{
            margin:0 auto 22px;
            max-width:42rem;
            color:var(--muted);
        }
        .footer{
            padding:34px 0 36px;
            border-top:1px solid rgba(255,255,255,.06);
            background:linear-gradient(180deg, rgba(6,10,18,.82), rgba(7,9,16,.96));
        }
        .footer-inner{
            padding:22px 0 0;
        }
        .footer-brand{
            display:inline-flex;
            align-items:center;
            gap:12px;
        }
        .footer-links{
            display:flex;
            flex-wrap:wrap;
            gap:14px;
        }
        .footer-links a{
            color:var(--muted);
            padding:.25rem 0;
            border-bottom:1px solid transparent;
        }
        .footer-links a:hover,
        .footer-links a:focus-visible{
            color:#fff;
            border-bottom-color:rgba(255,255,255,.28);
        }
        .footer-meta{
            display:flex;
            flex-wrap:wrap;
            gap:12px 18px;
            margin-top:16px;
            color:var(--muted-2);
            font-size:.92rem;
        }
        .footer-meta span{
            display:inline-flex;
            align-items:center;
            gap:8px;
        }
        .footer-meta span + span{
            position:relative;
        }
        .footer-meta span + span::before{
            content:"";
            width:1px;
            height:14px;
            background:rgba(255,255,255,.12);
            margin-right:2px;
        }
        .floating-top{
            position:fixed;
            right:18px;
            bottom:18px;
            z-index:1040;
            width:48px;
            height:48px;
            border-radius:50%;
            display:grid;
            place-items:center;
            background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(34,211,238,.9));
            color:#fff;
            box-shadow:0 18px 34px rgba(12,16,32,.35);
            border:1px solid rgba(255,255,255,.08);
        }
        .floating-top:hover{
            transform:translateY(-2px);
            color:#fff;
        }
        @media (max-width: 1199.98px){
            .page-hero,
            .article-grid,
            .contact-grid,
            .latest-grid{
                grid-template-columns:1fr;
            }
            .hero-panel{order:-1}
            .header-search{min-width:240px}
        }
        @media (max-width: 991.98px){
            .header-inner{
                flex-wrap:wrap;
                padding:10px 0;
            }
            .top-nav{
                order:3;
                width:100%;
                justify-content:flex-start;
                overflow:auto;
                padding-bottom:2px;
            }
            .header-tools{
                margin-left:auto;
            }
            .hero-shell{padding:24px}
            .hero-copy h1{font-size:clamp(1.85rem,7vw,3.2rem)}
            .hero-metrics{
                grid-template-columns:repeat(3,minmax(0,1fr));
            }
        }
        @media (max-width: 767.98px){
            .section-shell{padding:32px 0 60px}
            .hero-shell,
            .panel,
            .side-card,
            .contact-card,
            .post-card{
                border-radius:22px;
            }
            .header-tools{
                width:100%;
                justify-content:space-between;
            }
            .hero-metrics,
            .summary-grid{
                grid-template-columns:1fr;
            }
            .hero-actions .btn{
                width:100%;
                justify-content:center;
            }
            .hero-actions{
                flex-direction:column;
            }
            .cta-strip{
                align-items:flex-start;
            }
            .footer-links{
                gap:12px;
            }
            .footer-meta{
                flex-direction:column;
                gap:8px;
            }
            .footer-meta span + span::before{
                display:none;
            }
            .floating-top{
                right:14px;
                bottom:14px;
            }
        }
        @media (max-width: 575.98px){
            .site-header{
                position:sticky;
            }
            .brand-text{
                font-size:1rem;
            }
            .hero-shell{
                padding:18px;
            }
            .panel-body,
            .panel-head,
            .side-card,
            .contact-card,
            .post-card{
                padding:18px;
            }
            .hero-copy .lead,
            .section-subtitle,
            .post-desc,
            .contact-note{
                font-size:.94rem;
            }
            .meta-chip,
            .pill{
                font-size:.84rem;
            }
            .btn{
                padding:.74rem .98rem;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}