/* =====================================================
   site.css —— 官网样式
   语言：中性灰 + 单一深蓝主色；细边框、克制圆角；不使用渐变炫技与 emoji
   ===================================================== */

:root {
    --primary:       #175cd3;
    --primary-hover: #1447b0;
    --primary-weak:  #eff4ff;
    --primary-line:  #c7d7fe;

    --ink:  #0c111d;
    --t1:   #101828;
    --t2:   #475467;
    --t3:   #98a2b3;

    --line:      #eaecf0;
    --line-soft: #f2f4f7;
    --bg:        #ffffff;
    --bg-soft:   #f9fafb;

    --ok: #067647;

    --radius:    10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(16, 24, 40, .06);
    --shadow-md: 0 8px 24px rgba(16, 24, 40, .08);
    --shadow-lg: 0 24px 56px rgba(16, 24, 40, .12);

    --wrap: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    line-height: 1.7;
    color: var(--t1);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
.ic { display: block; flex-shrink: 0; }
img { display: block; max-width: 100%; }
::selection { background: rgba(23, 92, 211, .16); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }

/* ---------------- 按钮 ---------------- */

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    height: 40px; padding: 0 18px;
    border: 1px solid transparent; border-radius: 8px;
    font-size: 14px; font-weight: 500; font-family: inherit;
    cursor: pointer; white-space: nowrap;
    transition: background .15s ease, color .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 4px 14px rgba(23, 92, 211, .28); }
.btn-plain { color: var(--t2); }
.btn-plain:hover { color: var(--t1); background: var(--bg-soft); }
.btn-outline { border-color: var(--line); color: var(--t1); background: #fff; }
.btn-outline:hover { border-color: #c9cfd8; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: #f2f4f7; }
.btn-lg { height: 48px; padding: 0 26px; font-size: 15px; }
.btn-block { width: 100%; }

/* ---------------- 顶部导航 ---------------- */

.nav {
    position: sticky; top: 0; z-index: 50;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: saturate(160%) blur(10px);
    border-bottom: 1px solid var(--line);
}
.nav-inner {
    max-width: var(--wrap); margin: 0 auto; padding: 0 24px;
    height: 64px; display: flex; align-items: center; gap: 30px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
    width: 32px; height: 32px; border-radius: 8px;
    background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; font-weight: 600;
}
.brand-text b { display: block; font-size: 15px; font-weight: 600; line-height: 1.25; }
.brand-text i { font-style: normal; font-size: 11.5px; color: var(--t3); }

.nav-links { display: flex; gap: 26px; margin-left: 14px; }
.nav-links a { font-size: 14px; color: var(--t2); transition: color .15s ease; }
.nav-links a:hover { color: var(--t1); }
.nav-links a.is-active { color: var(--primary); font-weight: 500; }

.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav-toggle {
    display: none; margin-left: auto;
    width: 40px; height: 40px; border-radius: 8px;
    border: 1px solid var(--line); background: #fff; color: var(--t2);
    align-items: center; justify-content: center; cursor: pointer;
}

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

.hero { padding: 78px 0 70px; background: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%); }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }

.hero-badge {
    display: inline-flex; align-items: center; gap: 7px;
    height: 30px; padding: 0 12px;
    border: 1px solid var(--primary-line); border-radius: 20px;
    background: var(--primary-weak); color: var(--primary);
    font-size: 12.5px; font-weight: 500;
}
.hero h1 {
    margin-top: 20px;
    font-size: 44px; font-weight: 600; line-height: 1.22; letter-spacing: -.022em;
}
.hero h1 em { font-style: normal; color: var(--primary); }
.hero .lead { margin-top: 20px; font-size: 16.5px; color: var(--t2); line-height: 1.8; }
.hero-actions { margin-top: 30px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-note { margin-top: 14px; font-size: 13px; color: var(--t3); }

.hero-points { margin-top: 30px; display: flex; flex-direction: column; gap: 11px; }
.hero-points div { display: flex; align-items: center; gap: 9px; font-size: 14px; color: var(--t2); }
.hero-points .ic { color: var(--ok); }

/* 界面示意（纯 CSS 画的后台缩略图） */
.mock {
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    box-shadow: var(--shadow-lg); overflow: hidden;
}
.mock-bar {
    height: 36px; background: var(--bg-soft); border-bottom: 1px solid var(--line);
    display: flex; align-items: center; gap: 6px; padding: 0 14px;
}
.mock-bar span { width: 9px; height: 9px; border-radius: 50%; background: #e4e7ec; }
.mock-body { display: flex; min-height: 292px; }
.mock-side { width: 84px; border-right: 1px solid var(--line); padding: 14px 10px; display: flex; flex-direction: column; gap: 7px; }
.mock-nav { height: 9px; border-radius: 4px; background: var(--line-soft); }
.mock-nav.is-on { background: var(--primary-line); }
.mock-main { flex: 1; padding: 16px; display: flex; flex-direction: column; gap: 14px; }
.mock-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
.mock-card { border: 1px solid var(--line); border-radius: 8px; padding: 11px 9px; display: flex; flex-direction: column; gap: 9px; }
.mock-card b { display: block; height: 15px; width: 62%; border-radius: 4px; background: var(--line-soft); }
.mock-card i { display: block; height: 8px; width: 84%; border-radius: 4px; background: var(--primary-weak); }
.mock-table { border: 1px solid var(--line); border-radius: 8px; padding: 12px; display: flex; flex-direction: column; gap: 11px; }
.mock-row { height: 9px; border-radius: 4px; background: var(--line-soft); }
.mock-row.is-head { background: #e8ebef; }
.mock-row.w70 { width: 70%; }
.mock-row.w88 { width: 88%; }

/* ---------------- 通用区块 ---------------- */

.section { padding: 76px 0; }
.section-soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head { text-align: center; max-width: 660px; margin: 0 auto 46px; }
.section-head h2 { font-size: 30px; font-weight: 600; letter-spacing: -.022em; line-height: 1.35; }
.section-head p { margin-top: 14px; color: var(--t2); font-size: 15.5px; line-height: 1.8; }

.eyebrow {
    display: inline-block; margin-bottom: 14px;
    font-size: 12.5px; font-weight: 600; letter-spacing: .1em;
    color: var(--primary); text-transform: uppercase;
}

/* ---------------- 功能特性 ---------------- */

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature {
    background: #fff; border: 1px solid var(--line); border-radius: 12px;
    padding: 26px 24px;
    transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.feature:hover { border-color: #d8dee7; box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.feature .fi {
    width: 40px; height: 40px; border-radius: 10px;
    background: var(--primary-weak); color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 16px;
}
.feature h3 { font-size: 16px; font-weight: 600; margin-bottom: 9px; }
.feature p { font-size: 14px; color: var(--t2); line-height: 1.8; }

/* ---------------- 信任条 ---------------- */

.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.trust { display: flex; gap: 14px; }
.trust .ti {
    width: 38px; height: 38px; flex-shrink: 0; border-radius: 9px;
    background: var(--ink); color: #fff;
    display: flex; align-items: center; justify-content: center;
}
.trust h3 { font-size: 15.5px; font-weight: 600; margin-bottom: 6px; }
.trust p { font-size: 13.5px; color: var(--t2); line-height: 1.8; }

/* ---------------- 价格 ---------------- */

.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start; }
.price-card {
    position: relative;
    background: #fff; border: 1px solid var(--line); border-radius: 14px;
    padding: 30px 26px;
}
.price-card.is-hot { border-color: var(--primary); box-shadow: var(--shadow-md); }
.price-card .hot-tag {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--primary); color: #fff;
    font-size: 12px; font-weight: 500; line-height: 1;
    padding: 5px 12px; border-radius: 20px; white-space: nowrap;
}
.price-card h3 { font-size: 17px; font-weight: 600; }
.price-card .cycle { margin-top: 3px; font-size: 12.5px; color: var(--t3); }
.price-card .amount { margin-top: 18px; display: flex; align-items: baseline; gap: 3px; }
.price-card .amount .cur { font-size: 18px; font-weight: 500; }
.price-card .amount b { font-size: 38px; font-weight: 600; letter-spacing: -.03em; line-height: 1; }
.price-card .amount span { font-size: 13.5px; color: var(--t3); }
.price-card .desc { margin-top: 12px; font-size: 13px; color: var(--t3); }
.price-card ul { margin: 24px 0 26px; list-style: none; display: flex; flex-direction: column; gap: 12px; }
.price-card li { display: flex; gap: 9px; align-items: flex-start; font-size: 13.5px; color: var(--t2); line-height: 1.65; }
.price-card li .ic { color: var(--ok); margin-top: 3px; }

.price-tip { margin-top: 26px; text-align: center; font-size: 13px; color: var(--t3); }

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

.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 10px; background: #fff; overflow: hidden; }
.faq-q {
    padding: 17px 20px; font-size: 15px; font-weight: 500;
    display: flex; align-items: center; justify-content: space-between; gap: 14px;
    cursor: pointer; user-select: none;
}
.faq-q .ic { color: var(--t3); transition: transform .2s ease; }
.faq-item.is-open .faq-q .ic { transform: rotate(180deg); }
.faq-a {
    max-height: 0; overflow: hidden;
    padding: 0 20px;
    font-size: 14px; color: var(--t2); line-height: 1.9;
    transition: max-height .25s ease, padding .25s ease;
}
.faq-item.is-open .faq-a { max-height: 420px; padding-bottom: 18px; }

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

.cta { background: var(--ink); color: #fff; padding: 76px 0; text-align: center; }
.cta h2 { font-size: 30px; font-weight: 600; letter-spacing: -.02em; }
.cta p { margin-top: 14px; color: rgba(255, 255, 255, .68); font-size: 15px; }
.cta-actions { margin-top: 30px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.cta-note { margin-top: 16px; font-size: 12.5px; color: rgba(255, 255, 255, .45); }

/* ---------------- 内页 Banner ---------------- */

.page-banner { padding: 60px 0 52px; background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.page-banner h1 { font-size: 32px; font-weight: 600; letter-spacing: -.022em; }
.page-banner p { margin-top: 12px; color: var(--t2); font-size: 15.5px; max-width: 640px; }

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

.foot { background: #fff; border-top: 1px solid var(--line); padding: 54px 0 28px; }
/* 页脚容器：与 .wrap / .nav-inner 保持一致的限宽与居中，否则内容会贴着浏览器两边 */
.foot-inner { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.foot-main { display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 34px; }
.foot-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.foot-logo b { font-size: 15px; font-weight: 600; }
.foot-brand p { font-size: 13.5px; color: var(--t2); line-height: 1.8; }
.foot-brand .foot-slogan { margin-top: 10px; font-size: 12.5px; color: var(--t3); max-width: 320px; }
.foot-col h4 { font-size: 13px; font-weight: 600; margin-bottom: 14px; }
.foot-col a, .foot-col span { display: block; font-size: 13.5px; color: var(--t2); margin-bottom: 10px; }
.foot-col a:hover { color: var(--primary); }
.foot-bottom {
    margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line);
    display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap;
    font-size: 12.5px; color: var(--t3);
}

/* ---------------- 通用工具类 ---------------- */

.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.muted { color: var(--t3); }

/* ---------------- 表单 ---------------- */

.form-row { margin-bottom: 18px; }
.form-row > label { display: block; font-size: 13px; font-weight: 500; color: var(--t1); margin-bottom: 7px; }
.form-row .req { color: #d92d20; margin-left: 2px; }

.form-input {
    width: 100%; height: 42px; padding: 0 13px;
    border: 1px solid #d0d5dd; border-radius: 8px;
    font-size: 14px; font-family: inherit; color: var(--t1); background: #fff;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(23, 92, 211, .12); }
.form-input::placeholder { color: #b4bcc8; }
.form-hint { margin-top: 6px; font-size: 12.5px; color: var(--t3); line-height: 1.7; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.form-check { display: flex; gap: 9px; align-items: flex-start; font-size: 13px; color: var(--t2); line-height: 1.75; }
.form-check input { margin-top: 4px; flex: none; }
.form-check a { color: var(--primary); }

.captcha-row { display: flex; gap: 10px; }
.captcha-row .form-input { flex: 1; min-width: 0; }
.captcha-img {
    flex: none; width: 110px; height: 42px; border: 1px solid #d0d5dd; border-radius: 8px;
    background: var(--bg-soft); cursor: pointer; display: block;
}

/* ---------------- 提示条 ---------------- */

.msg {
    padding: 11px 14px; border-radius: 8px; border: 1px solid;
    font-size: 13.5px; line-height: 1.75; margin-bottom: 18px;
}
.msg-error { background: #fef3f2; border-color: #fecdca; color: #b42318; }
.msg-ok    { background: #ecfdf3; border-color: #abefc6; color: #067647; }
.msg-info  { background: var(--primary-weak); border-color: var(--primary-line); color: #194185; }

/* ---------------- 认证页（登录 / 注册 / 找回密码） ---------------- */

.auth { min-height: 100vh; display: grid; grid-template-columns: 1.24fr 1fr; }

/* -------- 左侧：背景大图 + 品牌与卖点 -------- */

.auth-aside {
    position: relative; color: #fff;
    padding: 28px 36px 44px;
    display: flex; flex-direction: column;
    background-color: var(--ink);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
/* 只做极轻的上下压暗，中间完全留给图片本身。
   文字的可读性交给下面各处的 text-shadow，而不是把整张图压黑。 */
.auth-aside::before {
    content: ''; position: absolute; inset: 0; z-index: 0;
    background: linear-gradient(180deg,
        rgba(12, 17, 29, .20) 0%,
        rgba(12, 17, 29, .02) 42%,
        rgba(12, 17, 29, .34) 100%);
}
.auth-aside > * { position: relative; z-index: 1; }

.auth-brand-top { display: flex; align-items: center; gap: 13px; }
.auth-brand-top .mk {
    width: 52px; height: 52px; border-radius: 14px; flex: none;
    background: #fff; color: var(--primary);
    display: flex; align-items: center; justify-content: center;
    font-size: 26px; font-weight: 700;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .18);
}
.auth-brand-top b {
    display: block; font-size: 19px; font-weight: 600; line-height: 1.3;
    color: #fff; text-shadow: 0 1px 8px rgba(0, 0, 0, .55);
}
.auth-brand-top i {
    font-style: normal; font-size: 12.5px; color: rgba(255, 255, 255, .84);
    text-shadow: 0 1px 6px rgba(0, 0, 0, .55);
}

.auth-intro { margin-top: auto; max-width: 480px; }
.auth-intro h2 {
    font-size: 34px; font-weight: 700; line-height: 1.32;
    letter-spacing: -.022em; color: #fff;
    text-shadow: 0 2px 14px rgba(0, 0, 0, .5);
}
.auth-intro > p {
    margin-top: 15px; font-size: 13.5px;
    color: rgba(255, 255, 255, .93); line-height: 1.85;
    text-shadow: 0 1px 8px rgba(0, 0, 0, .6);
}

.auth-points { margin-top: 26px; display: flex; flex-direction: column; gap: 14px; }
.auth-points > div {
    display: flex; gap: 12px; align-items: center;
    font-size: 14.5px; color: #fff;
    text-shadow: 0 1px 8px rgba(0, 0, 0, .6);
}
.auth-points .ico {
    width: 34px; height: 34px; border-radius: 50%; flex: none;
    background: rgba(255, 255, 255, .22);
    display: flex; align-items: center; justify-content: center;
    color: #fff;
}

/* -------- 右侧：表单区 -------- */

.auth-main {
    position: relative; overflow: hidden;
    display: flex; align-items: center; justify-content: center;
    padding: 38px 26px; background: #f7f9fd;
}
/* 右上角那片淡蓝弧形：按参考图反推圆心与大小 ——
   圆心落在元素右上角外侧，弧线大致从右侧区域的 55% 处起、向右上角甩出去。 */
.auth-main::before {
    content: ''; position: absolute;
    top: -375px; right: -375px;
    width: 590px; height: 590px; border-radius: 50%;
    background: rgba(23, 92, 211, .07);
}
/* 左下角只露一小片边 */
.auth-main::after {
    content: ''; position: absolute;
    bottom: -240px; left: -220px;
    width: 380px; height: 380px; border-radius: 50%;
    background: rgba(23, 92, 211, .055);
}

.auth-card {
    position: relative; z-index: 1;
    width: 100%; max-width: 428px; background: #fff;
    border-radius: 18px; padding: 34px 30px 22px;
    box-shadow: 0 14px 40px rgba(16, 24, 40, .08);
}
.auth-card .auth-brand { display: none; }
.auth-card h1 { font-size: 27px; font-weight: 700; letter-spacing: -.022em; }
.auth-card .sub { margin: 9px 0 24px; font-size: 14px; color: var(--t2); line-height: 1.7; }

/* -------- 带图标的输入框 -------- */

.inp { position: relative; }
.inp > .ic {
    position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
    color: #9aa4b2; pointer-events: none;
}
.inp input {
    width: 100%; height: 40px; padding: 0 13px 0 40px;
    border: 1px solid #dde3ea; border-radius: 8px;
    font-size: 14px; font-family: inherit; color: var(--t1); background: #fff;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.inp input::placeholder { color: #b6bfcc; }
.inp input:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(23, 92, 211, .1);
}
.inp.has-eye input { padding-right: 44px; }
.inp .eye {
    position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
    width: 32px; height: 32px; border: none; border-radius: 7px;
    background: transparent; color: #9aa4b2; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}
.inp .eye:hover { background: var(--line-soft); color: var(--t1); }
.inp .eye .e-off { display: none; }
.inp .eye.is-shown .e-on  { display: none; }
.inp .eye.is-shown .e-off { display: block; }

/* 验证码：输入框和图片并排 */
.inp-cap { display: flex; gap: 9px; align-items: center; }
.inp-cap .inp { flex: 1; min-width: 0; }
.inp-cap .captcha-img {
    flex: none; width: 100px; height: 40px;
    border: 1px solid #dde3ea; border-radius: 8px;
    cursor: pointer; background: #fff; display: block;
}

/* -------- 主按钮 -------- */

.btn-login {
    width: 100%; height: 46px; margin-top: 8px;
    border: none; border-radius: 8px; background: var(--primary); color: #fff;
    font-size: 16px; font-weight: 600; font-family: inherit;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center; gap: 8px;
    transition: background .15s ease, box-shadow .15s ease;
}
.btn-login:hover { background: var(--primary-hover); box-shadow: 0 6px 18px rgba(23, 92, 211, .28); }
.btn-login[disabled] { opacity: .6; cursor: not-allowed; box-shadow: none; }

/* -------- 卡片底部 -------- */

.auth-links {
    margin-top: 18px; display: flex; align-items: center; justify-content: center;
    gap: 10px; flex-wrap: wrap; font-size: 13.5px; color: var(--t2);
}
.auth-links a { color: var(--primary); }
.auth-links .hl { color: var(--primary); font-weight: 500; }
.auth-links .sep { width: 1px; height: 13px; background: var(--line); }

.auth-divider { margin: 18px 0 14px; border-top: 1px solid var(--line); }

.auth-foot { margin: 0; padding: 0; border: none; text-align: center; }
.auth-back { display: inline-block; font-size: 13.5px; color: var(--primary); }

/* 右下角标语 */
.auth-slogan {
    position: absolute; right: 38px; bottom: 22px; z-index: 1;
    text-align: right; font-size: 13px; color: var(--primary);
    letter-spacing: .06em;
}
.auth-slogan::after {
    content: ''; display: block; width: 42px; height: 2px;
    background: var(--primary); margin: 7px 0 0 auto; border-radius: 2px;
}

/* -------- 认证页响应式 -------- */

@media (max-width: 1100px) {
    .auth { grid-template-columns: 1fr 1fr; }
    .auth-intro h2 { font-size: 29px; }
    .auth-aside { padding: 26px 30px 38px; }
}

@media (max-width: 900px) {
    .auth { grid-template-columns: 1fr; }
    .auth-aside { display: none; }
    .auth-card .auth-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
    .auth-slogan { display: none; }
}

@media (max-width: 520px) {
    .auth-main { padding: 24px 14px; }
    .auth-card { padding: 24px 20px 18px; border-radius: 16px; }
    .auth-card h1 { font-size: 23px; }
    .inp-cap .captcha-img { width: 92px; }
}

/* ---------------- 数字指标条 ---------------- */

.stat-strip {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
    background: var(--line); border: 1px solid var(--line); border-radius: var(--radius);
    overflow: hidden; margin-top: 40px;
}
.stat-cell { background: #fff; padding: 22px 20px; }
.stat-cell b { display: block; font-size: 24px; font-weight: 600; letter-spacing: -.02em; line-height: 1.2; }
.stat-cell span { display: block; margin-top: 6px; font-size: 13px; color: var(--t2); }

/* ---------------- 步骤条 ---------------- */

.steps-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.step-item { padding: 0 26px; border-left: 1px solid var(--line); }
.step-item:first-child { padding-left: 0; border-left: none; }
.step-num {
    width: 30px; height: 30px; border-radius: 50%; background: var(--primary-weak);
    color: var(--primary); font-size: 13.5px; font-weight: 600;
    display: flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.step-item h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.step-item p { font-size: 14px; color: var(--t2); line-height: 1.8; }

/* ---------------- 对比表 ---------------- */

.cmp-wrap { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.cmp-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.cmp-table th, .cmp-table td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); }
.cmp-table thead th { background: var(--bg-soft); font-size: 13px; font-weight: 600; color: var(--t2); }
.cmp-table tbody tr:last-child td { border-bottom: none; }
.cmp-table td:first-child { color: var(--t2); }
.cmp-table .ic { color: var(--ok); }

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

@media (max-width: 960px) {
    .auth { grid-template-columns: 1fr; }
    .auth-aside { display: none; }
    .auth-card .auth-brand { display: flex; }
    .stat-strip { grid-template-columns: repeat(2, 1fr); }
    .steps-row { grid-template-columns: 1fr; gap: 30px; }
    .step-item { padding: 0; border-left: none; }
    .hero { padding: 56px 0 48px; }
    .hero-inner { grid-template-columns: 1fr; gap: 44px; }
    .hero h1 { font-size: 34px; }
    .hero .lead { font-size: 15.5px; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .trust-grid { grid-template-columns: 1fr; gap: 24px; }
    .price-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }
    .section { padding: 56px 0; }
    .section-head { margin-bottom: 34px; }
    .section-head h2 { font-size: 24px; }
    .foot-main { grid-template-columns: 1fr 1fr; gap: 28px; }
    .page-banner { padding: 44px 0 38px; }
    .page-banner h1 { font-size: 26px; }
    .cta { padding: 56px 0; }
    .cta h2 { font-size: 24px; }
}

@media (max-width: 720px) {
    .form-grid-2 { grid-template-columns: 1fr; }
    .auth-main { padding: 30px 18px; }
    .auth-card { padding: 26px 22px; }
    .stat-strip { grid-template-columns: 1fr; }
    .cmp-table th, .cmp-table td { padding: 12px 14px; font-size: 13px; }
    .nav-links { display: none; }
    .nav-links.is-open {
        display: flex; flex-direction: column; gap: 4px;
        position: absolute; left: 0; right: 0; top: 64px;
        background: #fff; border-bottom: 1px solid var(--line);
        padding: 12px 24px 18px;
        box-shadow: var(--shadow-sm);
    }
    .nav-links.is-open a { padding: 10px 0; font-size: 15px; }
    .nav-toggle { display: flex; }
    .nav-actions { margin-left: auto; }
    .nav-actions .btn-plain { display: none; }
    .brand-text i { display: none; }
    .feature-grid { grid-template-columns: 1fr; }
    .foot-main { grid-template-columns: 1fr; }
    .hero h1 { font-size: 29px; }
}

/* =====================================================
   动效层
   原则：克制 —— 位移小、时长短，只为让页面"活"一点，不做炫技。
   全部用原生 IntersectionObserver + CSS 过渡实现，不依赖任何动画库。
   ===================================================== */

/* ---------- Lenis 平滑滚动（合并自 lenis.css，省一个请求） ---------- */

html.lenis, html.lenis body { height: auto; }
.lenis:not(.lenis-autoToggle).lenis-stopped { overflow: clip; }
.lenis [data-lenis-prevent],
.lenis [data-lenis-prevent-wheel],
.lenis [data-lenis-prevent-touch] { overscroll-behavior: contain; }
.lenis.lenis-smooth iframe { pointer-events: none; }
.lenis.lenis-autoToggle {
    transition-property: overflow;
    transition-duration: 1ms;
    transition-behavior: allow-discrete;
}

/* ---------- 滚动入场 ---------- */

/* 核心约定：页面内容「默认就是可见的」。
 *
 * 这里的 .rv-hide 只由 site.js 主动添加 —— 也就是说，
 * 只有 JS 确实跑起来了，元素才会被隐藏；而且加这个类的同时，
 * JS 会立刻把元素交给观察器，不存在"隐藏了却没人负责显示"的中间状态。
 *
 * 因此：site.js 没加载、加载失败、中途出错、被拦截……页面都只是
 * 「没有动画」，绝不会再出现整片空白。
 */
.rv-hide {
    opacity: 0;
    transform: translateY(16px);
    transition:
        opacity .6s cubic-bezier(.22, .61, .36, 1),
        transform .6s cubic-bezier(.22, .61, .36, 1);

    /* ⚠ 最后一道保险：1.8 秒后由 CSS 自己把内容显示出来。
       这一层不依赖任何脚本 —— 就算 site.js 没加载、被拦截或中途报错，
       内容也只能"晚 1.8 秒出现"，绝不会一直空白。 */
    animation: rvForceShow 0s linear 1.8s forwards;
}
.rv-hide[data-reveal="left"]  { transform: translateX(-16px); }
.rv-hide[data-reveal="right"] { transform: translateX(16px); }
.rv-hide[data-reveal="scale"] { transform: scale(.975); }

.rv-hide.is-in {
    opacity: 1;
    transform: none;
}

@keyframes rvForceShow {
    to { opacity: 1; transform: none; }
}

/* ---------- 标题逐字上浮 ---------- */

/* 容器整体控制透明度（这样 <em> 等高亮片段也一起淡入）；
   每个字再各自从下方浮起并逐渐清晰。 */
.rv-hide[data-blur] {
    opacity: 0;
    transition: opacity .55s ease;
    animation: rvForceShow 0s linear 1.8s forwards;
}
.rv-hide[data-blur].is-in {
    opacity: 1;
}

.rv-hide[data-blur] .w {
    display: inline-block;
    filter: blur(7px);
    transform: translateY(6px);
    transition: filter .7s ease, transform .7s ease;
    animation: rvForceClear 0s linear 1.8s forwards;
}
.rv-hide[data-blur].is-in .w {
    filter: blur(0);
    transform: none;
}

@keyframes rvForceClear {
    to { filter: blur(0); transform: none; }
}

/* ---------- 鼠标 3D 倾斜 ---------- */

[data-tilt] {
    transition: transform .5s cubic-bezier(.22, .61, .36, 1);
    will-change: transform;
}
[data-tilt].is-tilting { transition: transform .12s linear; }

/* 数字滚动时宽度不跳 */
.stat-cell b, .kpi b { font-variant-numeric: tabular-nums; }

/* ---------- 跑马灯 ---------- */

.marquee-bar {
    padding: 26px 0;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: #fff;
}

.marquee {
    overflow: hidden;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
            mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}

/* 这里用 margin 而不是 gap：每条都带右间距（含最后一条），
   两组内容宽度才完全相等，位移 50% 时才不会跳动。 */
.marquee-track {
    display: flex;
    align-items: center;
    width: max-content;
    animation: marqueeScroll 34s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }

@keyframes marqueeScroll {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

.marquee-item {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-right: 52px;
    font-size: 14.5px;
    color: var(--t2);
    white-space: nowrap;
}
.marquee-item .ic { color: var(--ok); }

/* ---------- 按钮与卡片：轻微反馈 ---------- */

.btn {
    transition: background .18s ease, color .18s ease, border-color .18s ease,
                box-shadow .18s ease, transform .18s ease;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(23, 92, 211, .2); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }

.feature, .price-card, .trust { transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease; }

/* ---------- 尊重系统的「减少动态效果」 ---------- */

@media (prefers-reduced-motion: reduce) {
    .rv-hide,
    .rv-hide[data-blur],
    .rv-hide[data-blur] .w {
        opacity: 1 !important;
        transform: none !important;
        filter: none !important;
        transition: none !important;
        animation: none !important;
    }
    [data-tilt] { transition: none !important; }
    .marquee-track { animation: none; }
    .btn-primary:hover { transform: none; }
}