/* ============================================================

   快帮云学院 - 前台样式

   ============================================================ */



:root {

    --brand: #4f46e5;

    --brand-2: #7c3aed;

    --brand-3: #6366f1;

    --grad: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);

    --text: #1f2937;

    --text-2: #374151;

    --muted: #6b7280;

    --light: #9ca3af;

    --line: #e8eaf1;

    --bg: #f7f8fc;

    --card: #fff;

    --radius: 16px;

    --radius-sm: 10px;

    --shadow-sm: 0 1px 2px rgba(16, 24, 40, .04), 0 1px 3px rgba(16, 24, 40, .06);

    --shadow: 0 4px 20px rgba(16, 24, 40, .07);

    --shadow-lg: 0 18px 48px rgba(79, 70, 229, .16);

    --wrap: 1140px;

    --header-h: 68px;

}



* { box-sizing: border-box; }



html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }



body {

    margin: 0;

    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",

                 "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;

    background: var(--bg);

    color: var(--text);

    line-height: 1.7;

    -webkit-font-smoothing: antialiased;

    text-rendering: optimizeLegibility;

}



a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

button { font-family: inherit; }



.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }



/* ---------------- 顶栏 ---------------- */

.site-header {

    position: sticky;

    top: 0;

    z-index: 200;

    height: var(--header-h);

    background: rgba(255, 255, 255, .82);

    backdrop-filter: saturate(180%) blur(14px);

    -webkit-backdrop-filter: saturate(180%) blur(14px);

    border-bottom: 1px solid rgba(232, 234, 241, .9);

}



.site-header .wrap {

    height: 100%;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 18px;

}



.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 19px; letter-spacing: .2px; }



.brand img { height: 38px; width: auto; object-fit: contain; }



.brand-mark {

    width: 38px; height: 38px;

    border-radius: 11px;

    background: var(--grad);

    color: #fff;

    display: flex; align-items: center; justify-content: center;

    font-size: 19px;

    box-shadow: 0 6px 14px rgba(79, 70, 229, .28);

}



.brand-name {

    background: var(--grad);

    -webkit-background-clip: text;

    background-clip: text;

    -webkit-text-fill-color: transparent;

}



nav.main { display: flex; align-items: center; gap: 4px; }



nav.main a {

    display: inline-flex;

    align-items: center;

    gap: 7px;

    padding: 8px 14px;

    border-radius: 9px;

    font-size: 14.5px;

    color: var(--muted);

    transition: color .18s, background .18s;

}



nav.main a:hover { color: var(--brand); background: #f2f3fd; }



nav.main a.cta {

    margin-left: 8px;

    background: var(--grad);

    color: #fff;

    font-weight: 600;

    padding: 9px 18px;

    box-shadow: 0 4px 12px rgba(79, 70, 229, .26);

}



nav.main a.cta:hover { box-shadow: 0 7px 18px rgba(79, 70, 229, .34); filter: brightness(1.03); }



.nav-toggle { display: none; background: none; border: 0; font-size: 22px; color: var(--text); cursor: pointer; }



/* ---------------- Hero ---------------- */

.hero {

    position: relative;

    overflow: hidden;

    background: #1e1b4b;

    color: #fff;

    padding: 72px 0 88px;

    isolation: isolate;

}



.hero::before {

    content: "";

    position: absolute;

    inset: 0;

    background:

        radial-gradient(60% 90% at 12% 8%, rgba(124, 58, 237, .85), transparent 62%),

        radial-gradient(55% 85% at 88% 12%, rgba(79, 70, 229, .9), transparent 60%),

        radial-gradient(70% 70% at 50% 108%, rgba(14, 165, 233, .45), transparent 62%);

    z-index: -2;

}



.hero::after {

    content: "";

    position: absolute;

    inset: 0;

    background-image:

        linear-gradient(rgba(255, 255, 255, .055) 1px, transparent 1px),

        linear-gradient(90deg, rgba(255, 255, 255, .055) 1px, transparent 1px);

    background-size: 56px 56px;

    mask-image: radial-gradient(78% 68% at 50% 34%, #000 25%, transparent 82%);

    -webkit-mask-image: radial-gradient(78% 68% at 50% 34%, #000 25%, transparent 82%);

    z-index: -1;

}



.hero-inner { text-align: center; }



.hero-badge {

    display: inline-flex;

    align-items: center;

    gap: 7px;

    padding: 6px 15px;

    border-radius: 999px;

    background: rgba(255, 255, 255, .13);

    border: 1px solid rgba(255, 255, 255, .22);

    font-size: 13px;

    letter-spacing: .3px;

    margin-bottom: 22px;

    backdrop-filter: blur(4px);

}



.hero-badge .ico { width: 15px; height: 15px; }



.hero h1 {

    margin: 0 0 16px;

    font-size: clamp(30px, 5.4vw, 52px);

    line-height: 1.18;

    font-weight: 800;

    letter-spacing: -.5px;

}



.hero h1 .thin {

    display: block;

    font-size: clamp(15px, 2.2vw, 20px);

    font-weight: 500;

    color: rgba(255, 255, 255, .78);

    letter-spacing: .5px;

    margin-top: 14px;

}



.hero-sub {

    margin: 0 auto 32px;

    max-width: 620px;

    color: rgba(255, 255, 255, .8);

    font-size: 16px;

}



/* 搜索框 */

.search-box {

    position: relative;

    max-width: 560px;

    margin: 0 auto;

    display: flex;

    align-items: center;

    background: #fff;

    border-radius: 999px;

    padding: 7px 7px 7px 20px;

    box-shadow: 0 18px 44px rgba(15, 12, 60, .3);

}



.search-box > .ico { width: 19px; height: 19px; color: var(--light); }



.search-box input {

    flex: 1;

    min-width: 0;

    border: 0;

    outline: none;

    background: none;

    font-size: 15.5px;

    color: var(--text);

    padding: 10px 12px;

}



.search-box input::placeholder { color: var(--light); }



.search-box button {

    border: 0;

    border-radius: 999px;

    background: var(--grad);

    color: #fff;

    font-size: 15px;

    font-weight: 600;

    padding: 11px 26px;

    cursor: pointer;

    transition: filter .18s;

}



.search-box button:hover { filter: brightness(1.06); }



.search-suggest {

    position: absolute;

    top: calc(100% + 10px);

    left: 8px; right: 8px;

    background: #fff;

    border-radius: 14px;

    box-shadow: 0 22px 50px rgba(15, 12, 60, .22);

    padding: 8px;

    text-align: left;

    display: none;

    max-height: 320px;

    overflow-y: auto;

}



.search-suggest.open { display: block; }



.search-suggest a {

    display: flex;

    align-items: center;

    gap: 10px;

    padding: 10px 12px;

    border-radius: 9px;

    color: var(--text);

    font-size: 14.5px;

}



.search-suggest a:hover { background: #f5f5ff; }



.search-suggest .sg-cat {

    margin-left: auto;

    font-size: 12px;

    color: var(--light);

    flex-shrink: 0;

}



.search-suggest .empty-sg { padding: 16px; text-align: center; color: var(--light); font-size: 14px; }



/* Hero 统计 */

.hero-stats {

    display: flex;

    justify-content: center;

    flex-wrap: wrap;

    gap: 14px 46px;

    margin-top: 46px;

}



.hero-stat { text-align: center; }



.hero-stat b {

    display: block;

    font-size: 30px;

    font-weight: 800;

    line-height: 1.2;

    letter-spacing: -.5px;

}



.hero-stat span { font-size: 13.5px; color: rgba(255, 255, 255, .7); }



/* ---------------- 区块 ---------------- */

section.block { padding: 62px 0; }

section.block.tint { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }



.sec-head { margin-bottom: 34px; }



.sec-head.center { text-align: center; }



.sec-eyebrow {

    display: inline-flex;

    align-items: center;

    gap: 6px;

    font-size: 13px;

    font-weight: 700;

    color: var(--brand);

    letter-spacing: 1.2px;

    text-transform: uppercase;

    margin-bottom: 10px;

}



.sec-head h2 {

    margin: 0;

    font-size: clamp(22px, 3vw, 30px);

    font-weight: 800;

    letter-spacing: -.3px;

}



.sec-head p { margin: 10px 0 0; color: var(--muted); font-size: 15px; }



.sec-head.center p { max-width: 560px; margin-left: auto; margin-right: auto; }



/* ---------------- 分类卡片 ---------------- */

.grid { display: grid; gap: 18px; }



.grid.cats { grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); }

.grid.cards { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }



.cat-card {

    position: relative;

    background: var(--card);

    border: 1px solid var(--line);

    border-radius: var(--radius);

    padding: 24px 22px;

    box-shadow: var(--shadow-sm);

    transition: transform .24s cubic-bezier(.2,.7,.3,1), box-shadow .24s, border-color .24s;

    overflow: hidden;

    display: block;

}



.cat-card::after {

    content: "";

    position: absolute;

    inset: 0 auto 0 0;

    width: 4px;

    background: var(--cat-color, var(--brand));

    opacity: 0;

    transition: opacity .24s;

}



.cat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }

.cat-card:hover::after { opacity: 1; }



.cat-icon {

    width: 50px; height: 50px;

    border-radius: 14px;

    display: flex; align-items: center; justify-content: center;

    font-size: 24px;

    color: #fff;

    background: var(--cat-color, var(--brand));

    margin-bottom: 16px;

    box-shadow: 0 8px 18px rgba(16, 24, 40, .16);

}



.cat-name { font-weight: 700; font-size: 17px; margin-bottom: 8px; }



.cat-desc {

    color: var(--muted);

    font-size: 13.5px;

    line-height: 1.65;

    min-height: 44px;

    margin: 0 0 16px;

    display: -webkit-box;

    -webkit-line-clamp: 2;

    -webkit-box-orient: vertical;

    overflow: hidden;

}



.cat-foot {

    display: flex;

    align-items: center;

    justify-content: space-between;

    font-size: 13px;

    color: var(--light);

    border-top: 1px dashed var(--line);

    padding-top: 13px;

}



.cat-foot .cnt { color: var(--brand); font-weight: 700; }

.cat-foot .ico { transition: transform .22s; }

.cat-card:hover .cat-foot .ico { transform: translateX(4px); }



/* ---------------- 产品 ---------------- */

.filter-bar {

    display: flex;

    align-items: center;

    gap: 10px;

    flex-wrap: wrap;

    margin-bottom: 26px;

}



.chip-btn {

    border: 1px solid var(--line);

    background: #fff;

    color: var(--muted);

    border-radius: 999px;

    padding: 8px 17px;

    font-size: 14px;

    cursor: pointer;

    transition: all .18s;

    display: inline-flex;

    align-items: center;

    gap: 6px;

}



.chip-btn:hover { border-color: #c7c9f5; color: var(--brand); }



.chip-btn.active {

    background: var(--grad);

    border-color: transparent;

    color: #fff;

    font-weight: 600;

    box-shadow: 0 4px 12px rgba(79, 70, 229, .26);

}



.chip-btn .n {

    font-size: 12px;

    opacity: .72;

}



.result-tip { margin-left: auto; font-size: 13.5px; color: var(--light); }



.p-card {

    position: relative;

    background: var(--card);

    border: 1px solid var(--line);

    border-radius: var(--radius);

    padding: 22px;

    box-shadow: var(--shadow-sm);

    transition: transform .24s cubic-bezier(.2,.7,.3,1), box-shadow .24s, border-color .24s;

    display: flex;

    flex-direction: column;

}



.p-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: transparent; }



.p-tag {

    display: inline-flex;

    align-items: center;

    gap: 5px;

    align-self: flex-start;

    font-size: 12.5px;

    font-weight: 600;

    padding: 3px 11px;

    border-radius: 999px;

    margin-bottom: 13px;

    color: var(--tag-color, var(--brand));

    background: var(--tag-bg, #eef0ff);

}



.p-name { margin: 0 0 9px; font-size: 17px; font-weight: 700; }



.p-desc {

    margin: 0 0 18px;

    color: var(--muted);

    font-size: 14px;

    line-height: 1.65;

    flex: 1;

    display: -webkit-box;

    -webkit-line-clamp: 3;

    -webkit-box-orient: vertical;

    overflow: hidden;

}



.p-meta {

    display: flex;

    align-items: center;

    gap: 16px;

    font-size: 12.5px;

    color: var(--light);

    border-top: 1px dashed var(--line);

    padding-top: 14px;

}



.p-meta span { display: inline-flex; align-items: center; gap: 5px; }



.p-go { margin-left: auto; color: var(--brand); font-weight: 600; display: inline-flex; align-items: center; gap: 3px; }

.p-card:hover .p-go .ico { transform: translateX(3px); }

.p-meta .p-go .ico { transition: transform .22s; }



/* ---------------- 视频 ---------------- */

.grid.videos { grid-template-columns: repeat(auto-fill, minmax(268px, 1fr)); }



.v-card {

    background: var(--card);

    border: 1px solid var(--line);

    border-radius: var(--radius);

    overflow: hidden;

    box-shadow: var(--shadow-sm);

    transition: transform .24s cubic-bezier(.2,.7,.3,1), box-shadow .24s;

    display: block;

}



.v-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }



.v-cover {

    position: relative;

    aspect-ratio: 16 / 9;

    background: linear-gradient(135deg, #eef0fa, #e3e7f7);

    background-size: cover;

    background-position: center;

}



.v-cover .v-play {

    position: absolute;

    inset: 0;

    display: flex;

    align-items: center;

    justify-content: center;

    background: rgba(30, 27, 75, .18);

    transition: background .22s;

}



.v-cover .v-play span .ico { width: 22px; height: 22px; margin-left: 2px; }

.v-cover .v-play span {

    width: 54px; height: 54px;

    border-radius: 50%;

    background: rgba(255, 255, 255, .94);

    color: var(--brand);

    display: flex; align-items: center; justify-content: center;

    font-size: 25px;

    padding-left: 3px;

    box-shadow: 0 8px 22px rgba(15, 12, 60, .28);

    transition: transform .22s;

}



.v-card:hover .v-play { background: rgba(30, 27, 75, .32); }

.v-card:hover .v-play span { transform: scale(1.1); }



.v-body { padding: 16px 18px 18px; }



.v-body strong { display: block; font-size: 15.5px; margin-bottom: 7px; }



.v-body .v-sub {

    font-size: 12.5px;

    color: var(--light);

    display: flex;

    align-items: center;

    gap: 7px;

}



/* ---------------- FAQ ---------------- */

.faq-list { max-width: 860px; margin: 0 auto; }



details.faq {

    background: #fff;

    border: 1px solid var(--line);

    border-radius: var(--radius-sm);

    margin-bottom: 11px;

    box-shadow: var(--shadow-sm);

    transition: border-color .2s, box-shadow .2s;

}



details.faq[open] { border-color: #c7c9f5; box-shadow: var(--shadow); }



details.faq summary {

    cursor: pointer;

    list-style: none;

    padding: 17px 20px;

    font-weight: 600;

    font-size: 15.5px;

    display: flex;

    align-items: center;

    gap: 12px;

}



details.faq summary::-webkit-details-marker { display: none; }



details.faq summary .q {

    flex-shrink: 0;

    width: 23px; height: 23px;

    border-radius: 7px;

    background: #eef0ff;

    color: var(--brand);

    font-size: 12.5px;

    font-weight: 800;

    display: flex; align-items: center; justify-content: center;

}



details.faq summary .caret { margin-left: auto; color: var(--light); transition: transform .22s; flex-shrink: 0; width: 18px; height: 18px; }

details.faq[open] summary .caret { transform: rotate(180deg); }



details.faq .ans {

    padding: 0 20px 18px 55px;

    color: var(--text-2);

    font-size: 14.5px;

    line-height: 1.8;

}



details.faq .from {

    display: inline-flex;

    align-items: center;

    gap: 5px;

    font-size: 12px;

    color: var(--light);

    margin-top: 10px;

}



/* ---------------- CTA ---------------- */

.cta-band {

    background: var(--grad);

    color: #fff;

    border-radius: 22px;

    padding: 44px 40px;

    display: flex;

    align-items: center;

    justify-content: space-between;

    gap: 28px;

    flex-wrap: wrap;

    box-shadow: 0 22px 50px rgba(79, 70, 229, .28);

    position: relative;

    overflow: hidden;

}



.cta-band::after {

    content: "";

    position: absolute;

    right: -60px; top: -60px;

    width: 240px; height: 240px;

    border-radius: 50%;

    background: rgba(255, 255, 255, .12);

}



.cta-band h2 { margin: 0 0 8px; font-size: 25px; font-weight: 800; }

.cta-band p { margin: 0; color: rgba(255, 255, 255, .82); font-size: 15px; }



.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; position: relative; z-index: 1; }



.btn {

    display: inline-flex;

    align-items: center;

    gap: 8px;

    padding: 13px 26px;

    border-radius: 11px;

    font-size: 15px;

    font-weight: 600;

    transition: transform .18s, box-shadow .18s, background .18s;

    border: 1px solid transparent;

    cursor: pointer;

}



.btn-white { background: #fff; color: var(--brand); box-shadow: 0 8px 20px rgba(15, 12, 60, .2); }

.btn-white:hover { transform: translateY(-2px); }



.btn-ghost { background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .38); }

.btn-ghost:hover { background: rgba(255, 255, 255, .22); }



/* ---------------- 页脚 ---------------- */

.site-footer {

    background: #14122b;

    color: rgba(255, 255, 255, .62);

    padding: 46px 0 30px;

    margin-top: 70px;

    font-size: 14px;

}



.foot-grid {

    display: grid;

    grid-template-columns: 1.5fr 1fr 1fr;

    gap: 34px;

    padding-bottom: 30px;

    border-bottom: 1px solid rgba(255, 255, 255, .09);

}



.foot-brand { display: flex; align-items: center; gap: 11px; color: #fff; font-weight: 700; font-size: 17px; margin-bottom: 14px; }



.foot-brand .brand-mark { width: 34px; height: 34px; font-size: 17px; border-radius: 10px; }



.foot-about { max-width: 340px; line-height: 1.75; font-size: 13.5px; }



.foot-col h4 { color: #fff; font-size: 14.5px; margin: 0 0 14px; font-weight: 700; }



.foot-col a, .foot-col p { display: block; color: rgba(255, 255, 255, .62); font-size: 13.5px; margin: 0 0 9px; transition: color .18s; }

.foot-col a:hover { color: #fff; }



.foot-bottom {

    padding-top: 22px;

    display: flex;

    justify-content: space-between;

    gap: 14px;

    flex-wrap: wrap;

    font-size: 13px;

    color: rgba(255, 255, 255, .48);

}



/* ---------------- 产品详情 ---------------- */

.detail-hero {

    background: var(--grad);

    color: #fff;

    padding: 42px 0 54px;

}



.breadcrumb { font-size: 13.5px; color: rgba(255, 255, 255, .78); margin-bottom: 18px; }

.breadcrumb a:hover { color: #fff; text-decoration: underline; }



.detail-hero h1 { margin: 0 0 12px; font-size: clamp(24px, 3.6vw, 36px); font-weight: 800; letter-spacing: -.3px; }



.detail-hero p { margin: 0; color: rgba(255, 255, 255, .85); max-width: 720px; font-size: 15.5px; }



.detail-tags { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 20px; }



.detail-tag {

    background: rgba(255, 255, 255, .16);

    border: 1px solid rgba(255, 255, 255, .26);

    border-radius: 999px;

    padding: 5px 14px;

    font-size: 13px;

    display: inline-flex;

    align-items: center;

    gap: 6px;

}



.detail-body {

    background: #fff;

    border: 1px solid var(--line);

    border-radius: var(--radius);

    padding: 26px 28px;

    font-size: 15px;

    line-height: 1.85;

    color: var(--text-2);

    box-shadow: var(--shadow-sm);

    margin-top: -32px;

    position: relative;

}



section.detail-sec { padding: 42px 0 0; }



/* ---------------- 其他 ---------------- */

.empty {

    color: var(--muted);

    font-size: 14.5px;

    background: #fff;

    border: 1px dashed var(--line);

    border-radius: var(--radius);

    padding: 40px 24px;

    text-align: center;

}



.notice {

    background: #fff7ed;

    border: 1px solid #fed7aa;

    color: #9a3412;

    border-radius: var(--radius-sm);

    padding: 14px 18px;

    font-size: 14px;

    margin: 22px 0 0;

}



.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.3,1); }

.reveal.in { opacity: 1; transform: none; }



/* 进场完成后恢复卡片自身的悬停过渡，避免 hover 变慢 */

.reveal.in.cat-card, .reveal.in.p-card, .reveal.in.v-card {

    transition: transform .24s cubic-bezier(.2,.7,.3,1), box-shadow .24s, border-color .24s;

}



@media (prefers-reduced-motion: reduce) {

    html { scroll-behavior: auto; }

    .reveal { opacity: 1; transform: none; transition: none; }

    .cat-card, .p-card, .v-card, .btn { transition: none; }

}



/* ---------------- 响应式 ---------------- */

@media (max-width: 860px) {

    :root { --header-h: 60px; }



    .hero { padding: 52px 0 64px; }

    .hero-stats { gap: 18px 32px; margin-top: 36px; }

    .hero-stat b { font-size: 24px; }



    .search-box { padding: 6px 6px 6px 16px; }

    .search-box button { padding: 10px 18px; font-size: 14px; }



    section.block { padding: 46px 0; }



    .grid.cats, .grid.cards, .grid.videos { grid-template-columns: 1fr; }



    .filter-bar { gap: 8px; }

    .chip-btn { padding: 7px 14px; font-size: 13.5px; }

    .result-tip { margin-left: 0; width: 100%; }



    .cta-band { padding: 32px 24px; }



    .foot-grid { grid-template-columns: 1fr; gap: 26px; }



    .nav-toggle { display: block; }



    nav.main {

        position: absolute;

        top: var(--header-h);

        left: 0; right: 0;

        background: #fff;

        border-bottom: 1px solid var(--line);

        box-shadow: 0 14px 30px rgba(16, 24, 40, .1);

        flex-direction: column;

        align-items: stretch;

        padding: 10px 16px 16px;

        display: none;

    }



    nav.main.open { display: flex; }

    nav.main a { padding: 12px 14px; }

    nav.main a.cta { margin-left: 0; text-align: center; justify-content: center; }



    details.faq .ans { padding-left: 20px; }

    .detail-body { padding: 22px 20px; margin-top: -24px; }

}



/* ---------------- 内联图标 ---------------- */

.ico { width: 1.05em; height: 1.05em; flex-shrink: 0; display: block; }



/* 分类图标：Remixicon 未加载时退回首字 */

/* 图标已全部改为内联 SVG，不再依赖外部图标字体 */

.cat-icon .fb { font-weight: 800; font-size: 19px; line-height: 1; }

.cat-icon .ico { width: 26px; height: 26px; }



.detail-tag .ico { width: 15px; height: 15px; }

.p-tag .ico { width: 14px; height: 14px; }



/* ---------------- 视频弹窗 ---------------- */

.modal[hidden] { display: none; }



.modal { position: fixed; inset: 0; z-index: 500; display: flex; align-items: center; justify-content: center; padding: 22px; }



.modal-mask { position: absolute; inset: 0; background: rgba(12, 10, 34, .78); backdrop-filter: blur(4px); }



.modal-box {

    position: relative;

    width: min(920px, 100%);

    background: #100e24;

    border-radius: 16px;

    overflow: hidden;

    box-shadow: 0 30px 80px rgba(0, 0, 0, .5);

    animation: modalIn .22s cubic-bezier(.2,.7,.3,1);

}



@keyframes modalIn { from { opacity: 0; transform: translateY(14px) scale(.985); } }



.modal-box video { width: 100%; max-height: 72vh; display: block; background: #000; }



.modal-cap { padding: 14px 20px; color: rgba(255, 255, 255, .82); font-size: 14.5px; display: flex; align-items: center; gap: 10px; }



.modal-x {

    position: absolute;

    top: 10px; right: 12px;

    width: 34px; height: 34px;

    border: 0; border-radius: 50%;

    background: rgba(255, 255, 255, .16);

    color: #fff;

    font-size: 20px;

    line-height: 1;

    cursor: pointer;

    z-index: 2;

}



.modal-x:hover { background: rgba(255, 255, 255, .3); }



body.modal-open { overflow: hidden; }



/* ---------------- 视频封面（改为 img 懒加载，替代 background-image） ---------------- */

.v-cover > picture { position: absolute; inset: 0; display: block; }

.v-cover img {

    position: absolute; inset: 0;

    width: 100%; height: 100%;

    object-fit: cover;

}



/* ---------------- 播放器缓冲提示 ---------------- */

.v-stage { position: relative; background: #000; }

.v-loading {

    position: absolute; inset: 0; z-index: 3;

    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 13px;

    background: rgba(12, 10, 34, .58);

    color: rgba(255, 255, 255, .88);

    font-size: 13.5px;

    pointer-events: none;

}

.v-loading[hidden] { display: none; }

.v-loading em { font-style: normal; letter-spacing: .4px; }

.v-loading .spin {

    width: 40px; height: 40px; border-radius: 50%;

    border: 3px solid rgba(255, 255, 255, .24);

    border-top-color: #fff;

    animation: vspin .8s linear infinite;

}

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


/* ==========================================================================
   富文本内容（后台 wangEditor 产出的 HTML：产品介绍 / FAQ 答案 / 视频简介 / 分类简介）
   ========================================================================== */
.rich-content > *:first-child { margin-top: 0; }
.rich-content > *:last-child { margin-bottom: 0; }

.rich-content p { margin: 0 0 14px; }

.rich-content h1, .rich-content h2, .rich-content h3,
.rich-content h4, .rich-content h5, .rich-content h6 {
    margin: 22px 0 12px;
    line-height: 1.4;
    color: var(--text);
    font-weight: 700;
}
.rich-content h1 { font-size: 22px; }
.rich-content h2 { font-size: 19px; }
.rich-content h3 { font-size: 17px; }
.rich-content h4, .rich-content h5, .rich-content h6 { font-size: 15.5px; }

.rich-content ul, .rich-content ol { margin: 0 0 14px; padding-left: 24px; }
.rich-content li { margin: 5px 0; }
.rich-content li > ul, .rich-content li > ol { margin: 5px 0; }

.rich-content a {
    color: var(--brand);
    text-decoration: none;
    border-bottom: 1px solid rgba(79, 70, 229, .35);
}
.rich-content a:hover { border-bottom-color: currentColor; }

.rich-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    display: block;
    margin: 14px auto;
}
.rich-content figure { margin: 16px 0; }
.rich-content figcaption {
    text-align: center;
    font-size: 13px;
    color: var(--light);
    margin-top: 6px;
}

.rich-content blockquote {
    margin: 16px 0;
    padding: 12px 18px;
    background: #f5f4ff;
    border-left: 4px solid var(--brand);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-2);
}

.rich-content hr { border: none; border-top: 1px dashed var(--line); margin: 22px 0; }

.rich-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 14.5px;
}
.rich-content table th, .rich-content table td {
    border: 1px solid var(--line);
    padding: 9px 12px;
    text-align: left;
}
.rich-content table th { background: #f5f4ff; font-weight: 600; }
.rich-content table tr:nth-child(even) td { background: #fbfbfe; }

.rich-content code {
    background: #f2f3fa;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: Consolas, Monaco, 'Courier New', monospace;
    font-size: 13.5px;
}
.rich-content pre {
    background: #f6f7fb;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    overflow-x: auto;
    margin: 16px 0;
}
.rich-content pre code { background: none; padding: 0; }

.rich-content iframe, .rich-content video { max-width: 100%; border-radius: var(--radius-sm); }

@media (max-width: 640px) {
    .rich-content table { display: block; overflow-x: auto; white-space: nowrap; }
}


/* ==========================================================================
   产品详情页简介（后台编辑器产出的富文本）
   ========================================================================== */
.detail-intro { color: rgba(255, 255, 255, .85); max-width: 720px; font-size: 15.5px; }
.detail-intro p { margin: 0 0 8px; color: inherit; max-width: none; }
.detail-intro p:last-child { margin-bottom: 0; }
.detail-intro ul, .detail-intro ol { margin: 0 0 8px; padding-left: 22px; color: inherit; }
.detail-intro li { color: inherit; }
.detail-intro strong, .detail-intro b { color: #fff; }
.detail-intro a:not([href*="/uploads/editor/"]) { color: #fff; text-decoration: underline; }

/* ==========================================================================
   附件链接（编辑器「上传附件」插入，文件位于 uploads/editor/）
   ========================================================================== */
.rich-content a[href*="/uploads/editor/"],
.detail-intro a[href*="/uploads/editor/"] {
    position: relative;
    display: inline-block;
    margin: 6px 8px 6px 0;
    padding: 6px 14px 6px 32px;
    background: #f2f4fd;
    border: 1px solid #dfe3f7;
    border-radius: 999px;
    color: var(--brand, #4f46e5) !important;
    font-size: 14px;
    line-height: 1.55;
    text-decoration: none !important;
    transition: background .18s ease, border-color .18s ease;
}
.rich-content a[href*="/uploads/editor/"]::before,
.detail-intro a[href*="/uploads/editor/"]::before {
    content: "\1F4CE";
    position: absolute;
    left: 12px;
    top: 50%;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    font-size: 13px;
    line-height: 1;
}
.rich-content a[href*="/uploads/editor/"]:hover,
.detail-intro a[href*="/uploads/editor/"]:hover {
    background: #e8ecfb;
    border-color: #c9d1f2;
}

.detail-intro a[href*="/uploads/editor/"] {
    background: rgba(255, 255, 255, .14);
    border-color: rgba(255, 255, 255, .32);
    color: #fff !important;
}
.detail-intro a[href*="/uploads/editor/"]:hover {
    background: rgba(255, 255, 255, .24);
    border-color: rgba(255, 255, 255, .5);
}

/* 产品详情页简介位于深色渐变横幅内，表格/引用需要单独适配 */
.detail-intro table th, .detail-intro table td { border-color: rgba(255, 255, 255, .32); color: #fff; }
.detail-intro table th { background: rgba(255, 255, 255, .16); }
.detail-intro table tr:nth-child(even) td { background: rgba(255, 255, 255, .07); }
.detail-intro code { background: rgba(255, 255, 255, .14); color: #fff; }
.detail-intro pre { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .22); color: #fff; }
.detail-intro blockquote { background: rgba(255, 255, 255, .12); border-left-color: rgba(255, 255, 255, .55); color: rgba(255, 255, 255, .9); }
.detail-intro img { border-radius: 10px; }