/* ==========================================================================
   清野 · 用户端站点样式（首页 / 登录注册 / 控制台）
   浅色极简 · 雾白背景 · 雾青灰品牌色 · 大量留白 · Inter 字体（本地自托管）
   ========================================================================== */

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 300;
    font-display: swap;
    src: url('../fonts/inter/inter-latin-300-normal.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('../fonts/inter/inter-latin-400-normal.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 500;
    font-display: swap;
    src: url('../fonts/inter/inter-latin-500-normal.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('../fonts/inter/inter-latin-600-normal.woff2') format('woff2');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('../fonts/inter/inter-latin-700-normal.woff2') format('woff2');
}

:root {
    --q-bg: #F4F5F4;
    --q-bg-soft: #FFFFFF;
    --q-surface: #FFFFFF;
    --q-surface-2: #FAFBFA;
    --q-line: rgba(95, 113, 115, .14);
    --q-line-2: rgba(95, 113, 115, .3);
    --q-brand: #5F7173;
    --q-brand-2: #8A9B9C;
    --q-text: #232B2C;
    --q-text-2: #566263;
    --q-text-3: #6E7B7C;
    --q-font: 'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
        "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
}

/* -------------------------------------------------------------- 基础 */
body.sa-page {
    margin: 0;
    background: var(--q-bg);
    color: var(--q-text-2);
    font-family: var(--q-font);
    font-size: 15px;
    font-weight: 400;
    line-height: 1.75;
    letter-spacing: .01em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.sa-page *, .sa-page *::before, .sa-page *::after { box-sizing: border-box; }
.sa-page h1, .sa-page h2, .sa-page h3, .sa-page h4, .sa-page h5 { margin: 0; color: var(--q-text); font-weight: 400; letter-spacing: .01em; }
.sa-page p { margin: 0; font-size: inherit; }
.sa-page a { color: inherit; text-decoration: none; transition: color .2s ease, border-color .2s ease, background .2s ease, opacity .2s ease; }
.sa-page a:hover { text-decoration: none; }
.sa-page img { max-width: 100%; }
.sa-page ul { margin: 0; padding: 0; list-style: none; }
.sa-page button { font-family: inherit; }
.sa-page svg { display: block; }

.sa-wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 32px; }
.sa-section { padding: 128px 0; }
.sa-section--soft { background: var(--q-bg-soft); }

.sa-eyebrow {
    display: inline-block;
    color: var(--q-brand-2);
    font-size: 12px;
    font-weight: 400;
    letter-spacing: .2em;
    text-transform: uppercase;
}

.sa-head { max-width: 640px; margin-bottom: 72px; }
.sa-head h2 { font-size: 30px; line-height: 1.5; margin: 20px 0 16px; font-weight: 300; }
.sa-head p { color: var(--q-text-2); }

/* -------------------------------------------------------------- 品牌标识 */
.sa-brand { display: inline-flex; align-items: center; gap: 12px; }
.sa-brand__mark { flex: 0 0 auto; width: 46px; }
.sa-brand__mark svg { width: 46px; height: 26px; overflow: visible; }
.sa-brand__mark svg path {
    fill: none;
    stroke: var(--q-brand-2);
    stroke-width: 1.1;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.sa-brand__name { color: var(--q-brand); font-size: 17px; font-weight: 400; letter-spacing: .3em; }

/* -------------------------------------------------------------- 导航 */
.sa-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    background: rgba(244, 245, 244, .76);
    -webkit-backdrop-filter: saturate(150%) blur(14px);
    backdrop-filter: saturate(150%) blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color .3s ease, background .3s ease;
}

.sa-nav.is-stuck { background: rgba(244, 245, 244, .94); border-bottom-color: var(--q-line); }

.sa-nav__inner {
    display: flex;
    align-items: center;
    gap: 48px;
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 32px;
    height: 84px;
}

.sa-nav__links { display: flex; align-items: center; gap: 34px; }
.sa-nav__links a { color: var(--q-text-2); font-size: 14px; }
.sa-nav__links a:hover, .sa-nav__links a.is-active { color: var(--q-text); }

.sa-nav__right { display: flex; align-items: center; gap: 18px; margin-left: auto; }
.sa-nav__toggle { display: none; margin-left: auto; padding: 4px; background: none; border: 0; color: var(--q-brand); cursor: pointer; }

/* 用户菜单 */
.sa-user { position: relative; }
.sa-user__btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 6px 14px 6px 6px;
    background: transparent;
    border: 1px solid var(--q-line);
    border-radius: 999px;
    color: var(--q-text-2);
    font-size: 14px;
    cursor: pointer;
    transition: border-color .2s ease, color .2s ease;
}
.sa-user__btn:hover { border-color: var(--q-line-2); color: var(--q-text); }
.sa-user__btn img { width: 28px; height: 28px; border-radius: 50%; object-fit: cover; }
.sa-user__menu {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    min-width: 176px;
    padding: 8px;
    background: var(--q-surface);
    border: 1px solid var(--q-line);
    border-radius: 14px;
    box-shadow: 0 26px 60px -34px rgba(35, 43, 44, .34);
    display: none;
}
.sa-user.is-open .sa-user__menu { display: block; }
.sa-user__menu a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 9px; color: var(--q-text-2); font-size: 14px; }
.sa-user__menu a:hover { background: var(--q-surface-2); color: var(--q-text); }
.sa-user__menu i { width: 14px; color: var(--q-text-3); font-size: 12px; }
.sa-user__menu hr { margin: 6px 4px; border: 0; border-top: 1px solid var(--q-line); }

/* -------------------------------------------------------------- 按钮 */
.sa-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 44px;
    padding: 0 26px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 400;
    letter-spacing: .02em;
    line-height: 1;
    cursor: pointer;
    white-space: nowrap;
    transition: background .22s ease, border-color .22s ease, color .22s ease, opacity .22s ease;
}

.sa-btn--primary { background: var(--q-brand); color: #FFFFFF; }
.sa-btn--primary:hover { background: #6C7E80; color: #FFFFFF; }

.sa-btn--ghost { border-color: var(--q-line-2); color: var(--q-brand); }
.sa-btn--ghost:hover { background: rgba(95, 113, 115, .06); border-color: var(--q-brand-2); }

.sa-btn--sm { height: 38px; padding: 0 20px; font-size: 13px; }
.sa-btn--lg { height: 50px; padding: 0 32px; }
.sa-btn--block { display: flex; width: 100%; }

/* 链接型按钮 / 文字链接需显式声明颜色，避免被 .sa-page a 的 color:inherit 覆盖 */
.sa-page a.sa-btn--primary, .sa-page a.sa-btn--primary:hover { color: #FFFFFF; }
.sa-page a.sa-btn--ghost, .sa-page a.sa-btn--ghost:hover { color: var(--q-brand); }
.sa-page a.sa-more { color: var(--q-text-3); }
.sa-page a.sa-more:hover { color: var(--q-text); }

/* -------------------------------------------------------------- 首屏 */
.sa-hero { position: relative; overflow: hidden; padding: 232px 0 168px; }
.sa-hero__glow {
    position: absolute;
    top: -320px;
    left: 50%;
    width: 1000px;
    height: 660px;
    margin-left: -500px;
    background: radial-gradient(closest-side, rgba(138, 155, 156, .22), rgba(138, 155, 156, 0));
    pointer-events: none;
}
.sa-hero__ridge { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 180px; pointer-events: none; }
.sa-hero__ridge path { fill: none; stroke: var(--q-brand-2); stroke-width: 1; opacity: .5; }
.sa-hero__inner { position: relative; z-index: 2; max-width: 760px; }
.sa-hero h1 { font-size: 62px; line-height: 1.28; font-weight: 300; margin: 24px 0 22px; letter-spacing: .1em; }
.sa-hero__desc { max-width: 520px; color: var(--q-text-2); font-size: 17px; }
.sa-hero__actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 52px; }

/* -------------------------------------------------------------- 网格 / 卡片 */
.sa-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--q-line); border: 1px solid var(--q-line); border-radius: 16px; overflow: hidden; }
.sa-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--q-line); border: 1px solid var(--q-line); border-radius: 16px; overflow: hidden; }
.sa-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 48px; }

.sa-card { background: var(--q-surface); padding: 40px 32px; transition: background .25s ease; }
.sa-card:hover { background: var(--q-surface-2); }
.sa-card__ico { margin-bottom: 28px; color: var(--q-brand-2); }
.sa-card__ico svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.1; stroke-linecap: round; stroke-linejoin: round; }
.sa-card h3 { font-size: 16px; margin-bottom: 12px; color: var(--q-text); }
.sa-card p { color: var(--q-text-2); font-size: 14px; line-height: 1.8; }

/* -------------------------------------------------------------- 定制服务 */
.sa-custom { display: grid; grid-template-columns: 1fr 1fr; gap: 96px; align-items: start; }
.sa-steps { display: grid; gap: 0; margin-top: 40px; }
.sa-step { display: flex; gap: 24px; padding: 24px 0; border-top: 1px solid var(--q-line); }
.sa-step:last-child { border-bottom: 1px solid var(--q-line); }
.sa-step__no { flex: 0 0 auto; width: 28px; color: var(--q-brand-2); font-size: 12px; letter-spacing: .06em; padding-top: 2px; }
.sa-step b { display: block; color: var(--q-text); font-size: 15px; font-weight: 400; margin-bottom: 4px; }
.sa-step span { color: var(--q-text-2); font-size: 14px; }

.sa-contact { display: grid; gap: 0; }
.sa-contact li { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 20px 0; border-top: 1px solid var(--q-line); }
.sa-contact li:last-child { border-bottom: 1px solid var(--q-line); }
.sa-contact li span { color: var(--q-text-2); font-size: 14px; }
.sa-contact li em { color: var(--q-text-3); font-size: 13px; font-style: normal; letter-spacing: .04em; }
.sa-tagline { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; }
.sa-tagline span { padding: 5px 14px; border: 1px solid var(--q-line); border-radius: 999px; color: var(--q-text-2); font-size: 12px; }

/* -------------------------------------------------------------- 下载 */
.sa-tabs { display: inline-flex; gap: 36px; border-bottom: 1px solid var(--q-line); }
.sa-tab {
    position: relative;
    padding: 0 0 16px;
    background: none;
    border: 0;
    color: var(--q-text-2);
    font-size: 15px;
    cursor: pointer;
    transition: color .2s ease;
}
.sa-tab:hover { color: var(--q-text); }
.sa-tab.is-active { color: var(--q-text); }
.sa-tab.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--q-brand); }

.sa-pane { display: none; margin-top: 48px; }
.sa-pane.is-active { display: block; }

.sa-qr-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 48px; }
.sa-qr { display: flex; gap: 28px; align-items: flex-start; }
.sa-qr__box {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 132px;
    height: 132px;
    border: 1px dashed var(--q-line-2);
    border-radius: 12px;
    background: var(--q-surface);
    color: var(--q-text-3);
    font-size: 11px;
    letter-spacing: .08em;
    text-align: center;
    line-height: 1.6;
}
.sa-qr__box svg { width: 26px; height: 26px; fill: none; stroke: var(--q-brand-2); stroke-width: 1; }
.sa-qr h4 { color: var(--q-text); font-size: 15px; font-weight: 400; margin-bottom: 10px; }
.sa-qr p { color: var(--q-text-2); font-size: 13px; line-height: 1.8; }
.sa-qr__meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 16px; }
.sa-qr__meta span { color: var(--q-text-3); font-size: 12px; letter-spacing: .04em; }

.sa-note { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--q-line); color: var(--q-text-3); font-size: 13px; line-height: 1.8; }

/* -------------------------------------------------------------- 套餐 */
.sa-price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; align-items: stretch; }
.sa-price {
    display: flex;
    flex-direction: column;
    padding: 36px 28px;
    background: var(--q-surface);
    border: 1px solid var(--q-line);
    border-radius: 16px;
    transition: border-color .25s ease, box-shadow .25s ease;
}
.sa-price:hover { border-color: var(--q-line-2); box-shadow: 0 30px 60px -44px rgba(35, 43, 44, .4); }
.sa-price--best { border-color: var(--q-line-2); }
.sa-price__flag { color: var(--q-brand-2); font-size: 11px; letter-spacing: .2em; margin-bottom: 14px; }
.sa-price h3 { font-size: 17px; }
.sa-price__sub { color: var(--q-text-3); font-size: 13px; margin-top: 8px; }
.sa-price__amount { display: flex; align-items: baseline; gap: 8px; margin: 30px 0 20px; }
.sa-price__amount b { color: var(--q-text); font-size: 34px; font-weight: 300; line-height: 1; letter-spacing: -.01em; }
.sa-price__amount b em { font-style: normal; font-size: 16px; font-weight: 400; margin-right: 2px; }
.sa-price__amount span { color: var(--q-text-3); font-size: 12px; }
.sa-price__device { color: var(--q-text-2); font-size: 13px; padding-bottom: 22px; border-bottom: 1px solid var(--q-line); }
.sa-price__feats { flex: 1; display: grid; gap: 14px; margin: 24px 0 32px; }
.sa-price__feats li { display: flex; gap: 12px; align-items: flex-start; color: var(--q-text-2); font-size: 13px; line-height: 1.7; }
.sa-price__feats i { flex: 0 0 auto; margin-top: 7px; width: 5px; height: 5px; border-radius: 50%; background: var(--q-brand-2); }

/* -------------------------------------------------------------- FAQ */
.sa-faq { max-width: 800px; }
.sa-faq__item { border-top: 1px solid var(--q-line); }
.sa-faq__item:last-child { border-bottom: 1px solid var(--q-line); }
.sa-faq__item summary { display: flex; align-items: center; gap: 20px; padding: 26px 0; color: var(--q-text); font-size: 15px; font-weight: 400; cursor: pointer; list-style: none; outline: none; }
.sa-faq__item summary::-webkit-details-marker { display: none; }
.sa-faq__item summary::after { content: "+"; margin-left: auto; color: var(--q-brand-2); font-size: 16px; font-weight: 300; }
.sa-faq__item[open] summary::after { content: "\2013"; color: var(--q-brand); }
.sa-faq__item p { padding: 0 0 28px; color: var(--q-text-2); font-size: 14px; line-height: 1.9; max-width: 680px; }

/* -------------------------------------------------------------- CTA / 页脚 */
.sa-cta { text-align: center; padding: 40px 0; }
.sa-cta h2 { font-size: 30px; font-weight: 300; line-height: 1.5; }
.sa-cta p { color: var(--q-text-2); margin-top: 16px; }
.sa-cta__actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-top: 40px; }

.sa-footer { background: var(--q-bg-soft); border-top: 1px solid var(--q-line); padding: 80px 0 36px; }
.sa-footer__grid { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 48px; }
.sa-footer__desc { color: var(--q-text-3); font-size: 13px; line-height: 1.9; margin-top: 22px; max-width: 300px; }
.sa-footer h4 { color: var(--q-text-3); font-size: 12px; font-weight: 400; letter-spacing: .2em; margin-bottom: 22px; }
.sa-footer li { margin-bottom: 12px; }
.sa-footer li a { color: var(--q-text-2); font-size: 13px; }
.sa-footer li a:hover { color: var(--q-text); }
.sa-footer__bottom { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; margin-top: 64px; padding-top: 28px; border-top: 1px solid var(--q-line); color: var(--q-text-3); font-size: 12px; letter-spacing: .04em; }

/* -------------------------------------------------------------- 登录 / 注册 */
.sa-auth { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 160px 32px 96px; position: relative; overflow: hidden; }
.sa-auth__glow { position: absolute; top: -320px; left: 50%; width: 860px; height: 600px; margin-left: -430px; background: radial-gradient(closest-side, rgba(138, 155, 156, .2), rgba(138, 155, 156, 0)); pointer-events: none; }
.sa-auth__card {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 400px;
    padding: 44px 40px;
    background: var(--q-surface);
    border: 1px solid var(--q-line);
    border-radius: 18px;
    box-shadow: 0 40px 80px -56px rgba(35, 43, 44, .45);
}
.sa-auth__card h1 { font-size: 24px; font-weight: 300; margin-bottom: 12px; }
.sa-auth__card > p { color: var(--q-text-3); font-size: 14px; }

.sa-tabs-lite { display: flex; gap: 28px; margin: 36px 0 34px; border-bottom: 1px solid var(--q-line); }
.sa-tabs-lite a { padding-bottom: 14px; color: var(--q-text-2); font-size: 15px; }
.sa-tabs-lite a:hover { color: var(--q-text); }
.sa-tabs-lite a.is-active { color: var(--q-text); border-bottom: 1px solid var(--q-brand); margin-bottom: -1px; }

.sa-form { display: grid; gap: 22px; }
.sa-field label { display: block; margin-bottom: 10px; color: var(--q-text-3); font-size: 12px; font-weight: 400; letter-spacing: .1em; }
.sa-field label.required::after { content: " *"; color: var(--q-brand-2); }
.sa-form .form-control {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    background: var(--q-bg);
    border: 1px solid var(--q-line);
    border-radius: 10px;
    box-shadow: none;
    color: var(--q-text);
    font-family: inherit;
    font-size: 14px;
    transition: border-color .2s ease, background .2s ease;
}
.sa-form .form-control:focus { background: var(--q-surface); border-color: var(--q-line-2); box-shadow: none; outline: none; }
.sa-form .form-control::placeholder { color: #9BA6A7; }
.sa-form .form-group { margin-bottom: 0; }
.sa-form .form-group.has-error .form-control { border-color: #B4706C; }
.sa-form .form-group.has-success .form-control { border-color: var(--q-line-2); }

.sa-form .input-group { display: flex; width: 100%; }
.sa-form .input-group .form-control { border-radius: 10px 0 0 10px; }
.sa-form .input-group-btn { width: auto; }
.sa-form .input-group-btn .btn {
    height: 48px;
    padding: 0 16px;
    border: 1px solid var(--q-line);
    border-left: 0;
    border-radius: 0 10px 10px 0;
    background: var(--q-bg);
    color: var(--q-brand);
    font-size: 13px;
    font-weight: 400;
}
.sa-form .input-group-btn .btn:hover { color: var(--q-text); }
.sa-form .input-group-btn img { height: 48px; width: auto; border: 1px solid var(--q-line); border-left: 0; border-radius: 0 10px 10px 0; cursor: pointer; }

.sa-form .msg-box, .sa-form .help-block { display: block; margin: 8px 0 0; color: #B4706C; font-size: 12px; }
.sa-form .msg-box:empty, .sa-form .help-block:empty { display: none; }

.sa-check { display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--q-text-3); font-size: 13px; }
.sa-check label { display: inline-flex; align-items: center; gap: 8px; margin: 0; font-weight: 400; cursor: pointer; }
.sa-check a { color: var(--q-text-2); }
.sa-check a:hover { color: var(--q-text); }
.sa-auth__foot { margin-top: 30px; padding-top: 26px; border-top: 1px solid var(--q-line); color: var(--q-text-3); font-size: 13px; text-align: center; }
.sa-auth__foot a { color: var(--q-brand); }
.sa-auth__foot a:hover { color: var(--q-text); }

/* 忘记密码弹窗（Layer）浅色适配 */
.layui-layer { border: 1px solid var(--q-line) !important; border-radius: 14px !important; box-shadow: 0 40px 80px -50px rgba(35, 43, 44, .5) !important; }
.layui-layer-title { background: transparent !important; border-bottom: 1px solid var(--q-line) !important; color: var(--q-text) !important; font-weight: 400 !important; }
.layui-layer .control-label { color: var(--q-text-3); font-weight: 400; }
.layui-layer .form-control { border: 1px solid var(--q-line); box-shadow: none; }
.layui-layer .btn-primary { background: var(--q-brand); border-color: var(--q-brand); }

/* -------------------------------------------------------------- 控制台 */
.sa-console { padding: 148px 0 96px; }
.sa-console__head { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; padding-bottom: 44px; border-bottom: 1px solid var(--q-line); }
.sa-console__head img { width: 52px; height: 52px; border-radius: 50%; object-fit: cover; border: 1px solid var(--q-line); }
.sa-console__head h1 { font-size: 22px; font-weight: 300; margin-bottom: 8px; }
.sa-console__head p { color: var(--q-text-3); font-size: 13px; }
.sa-console__head .sa-head-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-left: auto; }

.sa-pill { display: inline-flex; align-items: center; gap: 8px; height: 30px; padding: 0 14px; border: 1px solid var(--q-line); border-radius: 999px; background: var(--q-surface); color: var(--q-text-2); font-size: 12px; letter-spacing: .04em; }
.sa-pill svg { width: 13px; height: 13px; fill: none; stroke: var(--q-brand-2); stroke-width: 1.2; }

.sa-tabs-nav { display: flex; flex-wrap: wrap; gap: 34px; margin: 44px 0 48px; border-bottom: 1px solid var(--q-line); }
.sa-tabs-nav button { position: relative; padding: 0 0 16px; background: none; border: 0; color: var(--q-text-2); font-size: 15px; cursor: pointer; transition: color .2s ease; }
.sa-tabs-nav button:hover { color: var(--q-text); }
.sa-tabs-nav button.is-active { color: var(--q-text); }
.sa-tabs-nav button.is-active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--q-brand); }

.sa-panel { display: none; }
.sa-panel.is-active { display: block; }

.sa-stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--q-line); border: 1px solid var(--q-line); border-radius: 16px; overflow: hidden; }
.sa-stat { background: var(--q-surface); padding: 32px 28px; }
.sa-stat i { display: block; margin-bottom: 22px; color: var(--q-brand-2); }
.sa-stat i svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.1; stroke-linecap: round; stroke-linejoin: round; }
.sa-stat b { display: block; color: var(--q-text); font-size: 26px; font-weight: 300; line-height: 1.2; }
.sa-stat span { color: var(--q-text-3); font-size: 12px; letter-spacing: .08em; }

.sa-block { margin-top: 56px; }
.sa-block__head { display: flex; align-items: baseline; gap: 16px; padding-bottom: 20px; border-bottom: 1px solid var(--q-line); }
.sa-block__head h3 { font-size: 16px; }
.sa-block__head .sa-more { margin-left: auto; color: var(--q-text-3); font-size: 13px; }
.sa-block__head .sa-more:hover { color: var(--q-text); }

.sa-actions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--q-line); border: 1px solid var(--q-line); border-top: 0; }
.sa-action { background: var(--q-surface); padding: 32px 28px; transition: background .25s ease; }
.sa-action:hover { background: var(--q-surface-2); }
.sa-action svg { width: 20px; height: 20px; fill: none; stroke: var(--q-brand-2); stroke-width: 1.1; stroke-linecap: round; stroke-linejoin: round; }
.sa-action b { display: block; margin: 20px 0 8px; color: var(--q-text); font-size: 15px; font-weight: 400; }
.sa-action span { color: var(--q-text-2); font-size: 13px; line-height: 1.8; }

.sa-plan-mini { display: flex; flex-wrap: wrap; align-items: center; gap: 28px; padding-top: 32px; }
.sa-plan-mini__info b { display: block; color: var(--q-text); font-size: 17px; font-weight: 400; margin-bottom: 8px; }
.sa-plan-mini__info span { color: var(--q-text-2); font-size: 13px; }
.sa-plan-mini__btns { margin-left: auto; }

.sa-empty { padding: 88px 0; text-align: center; }
.sa-empty svg { width: 30px; height: 30px; margin: 0 auto 26px; fill: none; stroke: var(--q-brand-2); stroke-width: 1; stroke-linecap: round; stroke-linejoin: round; }
.sa-empty b { display: block; color: var(--q-text); font-size: 15px; font-weight: 400; margin-bottom: 12px; }
.sa-empty p { max-width: 460px; margin: 0 auto; color: var(--q-text-3); font-size: 13px; line-height: 1.9; }
.sa-empty .sa-btn { margin-top: 32px; }

/* -------------------------------------------------------------- 响应式 */
@media (max-width: 1080px) {
    .sa-hero { padding: 200px 0 128px; }
    .sa-hero h1 { font-size: 50px; }
    .sa-grid-4, .sa-price-grid, .sa-stats-grid, .sa-actions-grid { grid-template-columns: repeat(2, 1fr); }
    .sa-actions-grid { border-top: 1px solid var(--q-line); }
    .sa-custom { grid-template-columns: 1fr; gap: 72px; }
    .sa-footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
}

@media (max-width: 860px) {
    .sa-nav__links { display: none; }
    .sa-nav__toggle { display: block; }
    .sa-nav.is-open .sa-nav__links {
        display: flex;
        position: absolute;
        top: 84px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 8px 32px 24px;
        background: rgba(244, 245, 244, .98);
        border-bottom: 1px solid var(--q-line);
    }
    .sa-nav.is-open .sa-nav__links a { padding: 14px 0; width: 100%; color: var(--q-text-2); }
    .sa-grid-3 { grid-template-columns: 1fr; }
    .sa-qr-grid { grid-template-columns: 1fr; gap: 44px; }
    .sa-section { padding: 88px 0; }
}

@media (max-width: 620px) {
    .sa-wrap { padding: 0 22px; }
    .sa-nav__inner { padding: 0 22px; height: 76px; gap: 20px; }
    .sa-nav.is-open .sa-nav__links { top: 76px; padding: 8px 22px 24px; }
    .sa-hero { padding: 152px 0 96px; }
    .sa-hero h1 { font-size: 38px; letter-spacing: .08em; margin: 20px 0 18px; }
    .sa-hero__desc { font-size: 15px; }
    .sa-hero__actions { gap: 12px; margin-top: 40px; }
    .sa-hero__actions .sa-btn { flex: 1 1 auto; }
    .sa-section { padding: 68px 0; }
    .sa-head { margin-bottom: 48px; }
    .sa-head h2 { font-size: 24px; }
    .sa-grid-4, .sa-price-grid, .sa-grid-2, .sa-stats-grid, .sa-actions-grid { grid-template-columns: 1fr; }
    .sa-grid-2 { gap: 32px; }
    .sa-card, .sa-action, .sa-stat { padding: 30px 24px; }
    .sa-price { padding: 32px 24px; }
    .sa-qr { flex-direction: column; gap: 20px; }
    .sa-footer__grid { grid-template-columns: 1fr; gap: 36px; }
    .sa-footer { padding: 64px 0 32px; }
    .sa-auth { padding: 130px 22px 80px; }
    .sa-auth__card { padding: 32px 24px; }
    .sa-console { padding: 120px 0 72px; }
    .sa-console__head { gap: 20px; padding-bottom: 34px; }
    .sa-console__head .sa-head-actions { margin-left: 0; width: 100%; }
    .sa-tabs-nav { gap: 24px; }
    .sa-plan-mini__btns { margin-left: 0; }
}