/* ==========================================================================
   必应蜘蛛池 - 全站主样式表
   主题：深空蓝 + 青蓝渐变（高转化 / 科技感）
   ========================================================================== */

/* ---------- 1. 变量与基础 ---------- */
:root {
    --bg: #060a13;
    --bg-2: #0a1120;
    --bg-3: #0e1729;
    --card: rgba(255, 255, 255, 0.035);
    --card-hover: rgba(255, 255, 255, 0.06);
    --line: rgba(255, 255, 255, 0.09);
    --line-strong: rgba(255, 255, 255, 0.16);
    --txt: #eaf1ff;
    --txt-2: #b8c6e0;
    --muted: #8494b3;
    --brand: #2f7bff;
    --brand-2: #00d6c4;
    --brand-3: #7a5cff;
    --grad: linear-gradient(120deg, #2f7bff 0%, #00d6c4 100%);
    --grad-2: linear-gradient(120deg, #7a5cff 0%, #2f7bff 100%);
    --grad-soft: linear-gradient(180deg, rgba(47, 123, 255, 0.16), rgba(0, 214, 196, 0.04));
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    --shadow-brand: 0 18px 40px rgba(47, 123, 255, 0.28);
    --radius: 18px;
    --radius-sm: 12px;
    --radius-lg: 26px;
    --wrap: 1220px;
    --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Helvetica Neue", Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--txt);
    line-height: 1.75;
    font-size: 16px;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body.is-locked {
    overflow: hidden;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color .25s ease, opacity .25s ease;
}

a:hover {
    color: var(--brand-2);
}

ul,
ol {
    list-style: none;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

::selection {
    background: rgba(47, 123, 255, .45);
    color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #070c17;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #2f7bff, #00d6c4);
    border-radius: 10px;
}

/* ---------- 2. 布局工具 ---------- */
.wrap {
    width: 100%;
    max-width: var(--wrap);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 96px 0;
    position: relative;
}

.section--tight {
    padding: 68px 0;
}

.section--alt {
    background: linear-gradient(180deg, rgba(10, 17, 32, 0) 0%, rgba(10, 17, 32, .9) 40%, rgba(10, 17, 32, 0) 100%);
}

.section--panel {
    background: var(--bg-2);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.grid {
    display: grid;
    gap: 24px;
}

/* 防止内部宽元素（表格等）反撑网格列，导致横向溢出 */
.grid > *,
.split > *,
.steps > *,
.layout-side > *,
.cta-grid > *,
.contact-grid > *,
.hero-grid > * {
    min-width: 0;
}

.grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.center {
    text-align: center;
}

.mt-24 {
    margin-top: 24px;
}

.mt-40 {
    margin-top: 40px;
}

.mt-56 {
    margin-top: 56px;
}

/* ---------- 3. 文字与标题 ---------- */
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 16px;
    border-radius: 100px;
    border: 1px solid rgba(47, 123, 255, .35);
    background: rgba(47, 123, 255, .1);
    color: #8fc0ff;
    font-size: 13px;
    letter-spacing: .5px;
    margin-bottom: 18px;
}

.eyebrow::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--brand-2);
    box-shadow: 0 0 12px var(--brand-2);
}

h1,
h2,
h3,
h4,
h5 {
    line-height: 1.3;
    font-weight: 700;
    letter-spacing: -.4px;
}

.h1 {
    font-size: clamp(30px, 4.2vw, 54px);
    line-height: 1.18;
}

.h2 {
    font-size: clamp(25px, 3vw, 38px);
}

.h3 {
    font-size: clamp(19px, 2vw, 23px);
}

.h4 {
    font-size: 17px;
}

.grad-text {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lead {
    color: var(--txt-2);
    font-size: 17px;
    max-width: 760px;
}

.muted {
    color: var(--muted);
}

.small {
    font-size: 13.5px;
    color: var(--muted);
}

.section-head {
    max-width: 800px;
    margin: 0 auto 56px;
    text-align: center;
}

.section-head .lead {
    margin: 16px auto 0;
}

.section-head--left {
    margin-left: 0;
    text-align: left;
}

.kw-line {
    margin-top: 18px;
    font-size: 13px;
    color: rgba(132, 148, 179, .85);
    letter-spacing: .3px;
}

/* ---------- 4. 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 14px 28px;
    border-radius: 100px;
    border: 1px solid transparent;
    font-size: 15.5px;
    font-weight: 600;
    cursor: pointer;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
    white-space: nowrap;
}

.btn svg {
    width: 17px;
    height: 17px;
}

.btn-primary {
    background: var(--grad);
    color: #04101f;
    box-shadow: var(--shadow-brand);
}

.btn-primary:hover {
    color: #04101f;
    transform: translateY(-3px);
    box-shadow: 0 22px 48px rgba(0, 214, 196, .34);
}

.btn-ghost {
    background: rgba(255, 255, 255, .04);
    border-color: var(--line-strong);
    color: var(--txt);
}

.btn-ghost:hover {
    color: #fff;
    background: rgba(255, 255, 255, .09);
    border-color: var(--brand);
    transform: translateY(-3px);
}

.btn-light {
    background: #fff;
    color: #0a1120;
}

.btn-light:hover {
    color: #0a1120;
    transform: translateY(-3px);
}

.btn-lg {
    padding: 17px 36px;
    font-size: 16.5px;
}

.btn-block {
    width: 100%;
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

/* ---------- 5. 顶部信息条 + 导航 ---------- */
.topbar {
    background: linear-gradient(90deg, rgba(47, 123, 255, .18), rgba(0, 214, 196, .12));
    border-bottom: 1px solid var(--line);
    font-size: 13.5px;
    color: var(--txt-2);
}

.topbar .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 42px;
    flex-wrap: wrap;
}

.topbar-info {
    display: flex;
    align-items: center;
    gap: 22px;
    flex-wrap: wrap;
}

.topbar-info span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.topbar-info svg {
    width: 15px;
    height: 15px;
    color: var(--brand-2);
}

.topbar-tag {
    color: #9fd9ff;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 90;
    background: rgba(6, 10, 19, .82);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.site-header.is-stuck {
    background: rgba(6, 10, 19, .96);
    border-bottom-color: var(--line);
    box-shadow: 0 12px 34px rgba(0, 0, 0, .5);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 76px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.brand img {
    width: 42px;
    height: 42px;
}

.brand-txt strong {
    display: block;
    font-size: 18px;
    letter-spacing: .5px;
    line-height: 1.25;
}

.brand-txt span {
    display: block;
    font-size: 11.5px;
    color: var(--muted);
    letter-spacing: 1.6px;
    text-transform: uppercase;
}

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

.menu > li > a {
    display: block;
    padding: 10px 15px;
    border-radius: 10px;
    font-size: 15px;
    color: var(--txt-2);
    font-weight: 500;
    position: relative;
}

.menu > li > a:hover,
.menu > li > a.is-active {
    color: #fff;
    background: rgba(255, 255, 255, .06);
}

.menu > li > a.is-active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 2px;
    width: 18px;
    height: 2px;
    transform: translateX(-50%);
    background: var(--grad);
    border-radius: 2px;
}

/* 二级栏目（桌面：hover 展开浮层） */
.has-sub {
    position: relative;
}

.has-sub > a {
    display: flex;
    align-items: center;
    gap: 5px;
}

.sub-caret {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    transition: transform .25s ease;
}

.has-sub:hover > a .sub-caret,
.has-sub.is-open > a .sub-caret {
    transform: rotate(180deg);
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 178px;
    padding: 8px;
    border-radius: var(--radius-sm);
    background: rgba(10, 17, 32, .98);
    border: 1px solid var(--line-strong);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s linear;
    z-index: 96;
}

.has-sub:hover .submenu,
.has-sub:focus-within .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu a {
    display: block;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 14.5px;
    font-weight: 500;
    color: var(--txt-2);
    white-space: nowrap;
}

.submenu a:hover {
    color: #fff;
    background: rgba(47, 123, 255, .16);
}

.submenu a.is-active {
    color: #fff;
    background: rgba(47, 123, 255, .22);
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, .04);
    cursor: pointer;
    position: relative;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    position: absolute;
    left: 50%;
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transform: translateX(-50%);
    transition: .28s ease;
}

.nav-toggle span {
    top: 50%;
    margin-top: -1px;
}

.nav-toggle span::before {
    content: "";
    top: -7px;
}

.nav-toggle span::after {
    content: "";
    top: 7px;
}

.nav-toggle.is-open span {
    background: transparent;
}

.nav-toggle.is-open span::before {
    top: 0;
    transform: translateX(-50%) rotate(45deg);
}

.nav-toggle.is-open span::after {
    top: 0;
    transform: translateX(-50%) rotate(-45deg);
}

/* ---------- 6. 首屏 Hero ---------- */
.hero {
    position: relative;
    padding: 84px 0 92px;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(760px 420px at 82% 8%, rgba(47, 123, 255, .22), transparent 70%),
        radial-gradient(620px 420px at 12% 78%, rgba(0, 214, 196, .16), transparent 72%);
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
    background-size: 62px 62px;
    mask-image: radial-gradient(circle at 50% 30%, #000 10%, transparent 78%);
    -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 10%, transparent 78%);
    pointer-events: none;
}

.hero .wrap {
    position: relative;
    z-index: 2;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.08fr .92fr;
    gap: 56px;
    align-items: center;
}

.hero h1 {
    margin-bottom: 22px;
}

.hero .lead {
    font-size: 18px;
}

.hero-points {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 22px;
    margin: 28px 0 34px;
}

.hero-points li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 15px;
    color: var(--txt-2);
}

.hero-points svg {
    width: 19px;
    height: 19px;
    flex-shrink: 0;
    margin-top: 4px;
    color: var(--brand-2);
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-top: 34px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    flex-wrap: wrap;
}

.hero-trust span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    color: var(--muted);
}

.hero-trust svg {
    width: 16px;
    height: 16px;
    color: var(--brand-2);
}

/* 右侧可视化面板 */
.panel-wrap {
    position: relative;
}

.panel-mock {
    position: relative;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line-strong);
    background: linear-gradient(160deg, rgba(20, 32, 56, .92), rgba(8, 13, 24, .95));
    box-shadow: var(--shadow);
    padding: 22px;
    overflow: hidden;
}

.panel-mock::before {
    content: "";
    position: absolute;
    top: -60%;
    right: -30%;
    width: 340px;
    height: 340px;
    background: radial-gradient(circle, rgba(0, 214, 196, .28), transparent 65%);
    pointer-events: none;
}

.panel-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 18px;
}

.panel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #33405c;
}

.panel-dot--b {
    background: #2f7bff;
}

.panel-dot--g {
    background: #00d6c4;
}

.panel-title {
    margin-left: auto;
    font-size: 12.5px;
    color: var(--muted);
    letter-spacing: .6px;
}

.panel-rows {
    display: grid;
    gap: 14px;
    position: relative;
    z-index: 1;
}

.panel-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 13px 15px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line);
}

.panel-row b {
    display: block;
    font-size: 14px;
}

.panel-row small {
    color: var(--muted);
    font-size: 12px;
}

.panel-badge {
    font-size: 12px;
    padding: 4px 11px;
    border-radius: 100px;
    background: rgba(0, 214, 196, .14);
    border: 1px solid rgba(0, 214, 196, .34);
    color: #6ff0e2;
    white-space: nowrap;
}

.panel-badge--blue {
    background: rgba(47, 123, 255, .14);
    border-color: rgba(47, 123, 255, .34);
    color: #9cc2ff;
}

.panel-chart {
    display: flex;
    align-items: flex-end;
    gap: 9px;
    height: 108px;
    margin-top: 20px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
}

.panel-chart i {
    flex: 1;
    border-radius: 6px 6px 3px 3px;
    background: linear-gradient(180deg, rgba(0, 214, 196, .85), rgba(47, 123, 255, .25));
    animation: barUp 2.4s ease-in-out infinite alternate;
}

.panel-chart i:nth-child(1) {
    height: 38%;
    animation-delay: .1s;
}

.panel-chart i:nth-child(2) {
    height: 56%;
    animation-delay: .25s;
}

.panel-chart i:nth-child(3) {
    height: 46%;
    animation-delay: .4s;
}

.panel-chart i:nth-child(4) {
    height: 72%;
    animation-delay: .55s;
}

.panel-chart i:nth-child(5) {
    height: 60%;
    animation-delay: .7s;
}

.panel-chart i:nth-child(6) {
    height: 86%;
    animation-delay: .85s;
}

.panel-chart i:nth-child(7) {
    height: 74%;
    animation-delay: 1s;
}

.panel-chart i:nth-child(8) {
    height: 96%;
    animation-delay: 1.15s;
}

@keyframes barUp {
    from {
        transform: scaleY(.82);
        transform-origin: bottom;
        opacity: .75;
    }

    to {
        transform: scaleY(1);
        transform-origin: bottom;
        opacity: 1;
    }
}

.hero-float {
    position: absolute;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 16px;
    border-radius: 14px;
    background: rgba(10, 17, 32, .92);
    border: 1px solid var(--line-strong);
    box-shadow: var(--shadow);
    font-size: 13px;
    animation: floaty 4.5s ease-in-out infinite;
}

.hero-float svg {
    width: 18px;
    height: 18px;
    color: var(--brand-2);
}

.hero-float--a {
    top: 12px;
    left: -22px;
}

.hero-float--b {
    bottom: 34px;
    right: -18px;
    animation-delay: 1.4s;
}

@keyframes floaty {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-11px);
    }
}

/* 内页 Hero */
.page-hero {
    position: relative;
    padding: 74px 0 66px;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(150deg, rgba(20, 33, 60, .78), rgba(6, 10, 19, .4));
}

.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(620px 320px at 84% 0%, rgba(47, 123, 255, .2), transparent 70%),
        radial-gradient(520px 280px at 6% 100%, rgba(0, 214, 196, .14), transparent 72%);
    pointer-events: none;
}

.page-hero .wrap {
    position: relative;
    z-index: 2;
}

.page-hero h1 {
    margin-bottom: 18px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 13.5px;
    color: var(--muted);
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.breadcrumb a:hover {
    color: var(--brand-2);
}

.breadcrumb i {
    color: #46536e;
    font-style: normal;
}

.page-hero-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    border-radius: 100px;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--line);
    font-size: 13.5px;
    color: var(--txt-2);
}

.chip svg {
    width: 15px;
    height: 15px;
    color: var(--brand-2);
}

/* ---------- 7. 数据条 ---------- */
.stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}

.stats > div {
    background: var(--bg-2);
    padding: 30px 22px;
    text-align: center;
}

.stats strong {
    display: block;
    font-size: clamp(24px, 3vw, 34px);
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.stats span {
    display: block;
    color: var(--muted);
    font-size: 13.5px;
    margin-top: 6px;
}

/* ---------- 8. 卡片 ---------- */
.card {
    position: relative;
    padding: 30px 26px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--line);
    transition: transform .3s ease, border-color .3s ease, background .3s ease, box-shadow .3s ease;
    overflow: hidden;
}

.card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--grad);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .35s ease;
}

.card:hover {
    transform: translateY(-6px);
    background: var(--card-hover);
    border-color: rgba(47, 123, 255, .42);
    box-shadow: 0 22px 46px rgba(0, 0, 0, .38);
}

.card:hover::after {
    transform: scaleX(1);
}

.card h3 {
    font-size: 19px;
    margin-bottom: 12px;
}

.card p {
    color: var(--txt-2);
    font-size: 14.8px;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin-top: 18px;
    font-size: 14px;
    font-weight: 600;
    color: #7fd8ff;
}

.card-link svg {
    width: 15px;
    height: 15px;
    transition: transform .25s ease;
}

.card-link:hover svg {
    transform: translateX(4px);
}

.card-icon {
    width: 54px;
    height: 54px;
    border-radius: 15px;
    display: grid;
    place-items: center;
    background: var(--grad-soft);
    border: 1px solid rgba(47, 123, 255, .28);
    margin-bottom: 20px;
}

.card-icon svg {
    width: 26px;
    height: 26px;
    color: var(--brand-2);
}

.card-num {
    position: absolute;
    top: 18px;
    right: 22px;
    font-size: 42px;
    font-weight: 800;
    color: rgba(255, 255, 255, .045);
    line-height: 1;
}

.card--service {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card--service .card-link {
    margin-top: auto;
    padding-top: 18px;
}

.card-list {
    display: grid;
    gap: 9px;
    margin-top: 16px;
}

.card-list li {
    display: flex;
    gap: 9px;
    align-items: flex-start;
    font-size: 14px;
    color: var(--txt-2);
}

.card-list svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 5px;
    color: var(--brand-2);
}

/* ---------- 案例卡片 ---------- */
.case-card {
    display: flex;
    flex-direction: column;
    padding: 0;
}

.case-thumb {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--bg-3);
    border-bottom: 1px solid var(--line);
}

.case-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

.case-card:hover .case-thumb img {
    transform: scale(1.05);
}

.case-flag {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 3px 11px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--txt);
    background: rgba(6, 10, 19, .74);
    border: 1px solid var(--line-strong);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.case-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 22px 24px 26px;
}

.case-body h3 {
    font-size: 17.5px;
    margin-bottom: 8px;
}

.case-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 24px;
    margin-top: auto;
    padding-top: 18px;
    border-top: 1px dashed var(--line);
}

.case-metrics b {
    display: block;
    font-size: 18px;
    line-height: 1.35;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.case-metrics span {
    font-size: 12.5px;
    color: var(--muted);
}

/* ---------- 9. 特色/优势行 ---------- */
.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
}

.check-list {
    display: grid;
    gap: 20px;
    margin-top: 30px;
}

.check-list > li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.check-list .ico {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 12px;
    display: grid;
    place-items: center;
    background: var(--grad-soft);
    border: 1px solid rgba(0, 214, 196, .3);
}

.check-list .ico svg {
    width: 20px;
    height: 20px;
    color: var(--brand-2);
}

.check-list b {
    display: block;
    font-size: 16px;
    margin-bottom: 4px;
}

.check-list p {
    color: var(--txt-2);
    font-size: 14.6px;
}

/* 流程时间线 */
.steps {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
    counter-reset: step;
}

.step {
    position: relative;
    padding: 30px 24px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--line);
}

.step::before {
    counter-increment: step;
    content: "0" counter(step);
    display: block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--brand-2);
    margin-bottom: 14px;
}

.step h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.step p {
    color: var(--txt-2);
    font-size: 14.6px;
}

/* ---------- 10. 表格 ---------- */
.table-wrap {
    overflow-x: auto;
    max-width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: var(--card);
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
}

thead th {
    text-align: left;
    padding: 17px 20px;
    font-size: 14px;
    color: #9fd9ff;
    background: rgba(47, 123, 255, .1);
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
}

tbody td {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, .05);
    font-size: 14.6px;
    color: var(--txt-2);
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover td {
    background: rgba(255, 255, 255, .03);
    color: var(--txt);
}

td b {
    color: var(--txt);
}

/* ---------- 11. FAQ 手风琴 ---------- */
.faq {
    display: grid;
    gap: 14px;
    max-width: 940px;
    margin: 0 auto;
}

.faq-item {
    border-radius: var(--radius-sm);
    border: 1px solid var(--line);
    background: var(--card);
    overflow: hidden;
    transition: border-color .25s ease, background .25s ease;
}

.faq-item.is-open {
    border-color: rgba(47, 123, 255, .45);
    background: rgba(47, 123, 255, .06);
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 20px 22px;
    background: none;
    border: none;
    color: var(--txt);
    font-size: 16px;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
}

.faq-q i {
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    position: relative;
    border-radius: 50%;
    border: 1px solid var(--line-strong);
    transition: .3s ease;
}

.faq-q i::before,
.faq-q i::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 11px;
    height: 2px;
    background: #b8c6e0;
    transform: translate(-50%, -50%);
    transition: .3s ease;
}

.faq-q i::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.is-open .faq-q i {
    background: var(--grad);
    border-color: transparent;
}

.faq-item.is-open .faq-q i::before,
.faq-item.is-open .faq-q i::after {
    background: #05101d;
}

.faq-item.is-open .faq-q i::after {
    transform: translate(-50%, -50%) rotate(0deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .38s ease;
}

.faq-a > div {
    padding: 0 22px 22px;
    color: var(--txt-2);
    font-size: 14.8px;
}

/* ---------- 12. 询盘 / 联系方式卡片 ---------- */
.cta-band {
    position: relative;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line-strong);
    background: linear-gradient(140deg, rgba(24, 40, 74, .9), rgba(8, 13, 24, .95));
    padding: 52px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.cta-band::before {
    content: "";
    position: absolute;
    top: -180px;
    left: -120px;
    width: 460px;
    height: 460px;
    background: radial-gradient(circle, rgba(47, 123, 255, .3), transparent 66%);
    pointer-events: none;
}

.cta-band::after {
    content: "";
    position: absolute;
    bottom: -200px;
    right: -140px;
    width: 460px;
    height: 460px;
    background: radial-gradient(circle, rgba(0, 214, 196, .24), transparent 66%);
    pointer-events: none;
}

.cta-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

/* 联系卡片（替代表单：只留询盘按钮） */
.contact-card {
    padding: 30px 28px;
    border-radius: var(--radius);
    background: rgba(6, 10, 19, .72);
    border: 1px solid var(--line);
    backdrop-filter: blur(8px);
}

.contact-methods {
    display: grid;
    gap: 12px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 15px 18px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line);
    transition: transform .25s ease, border-color .25s ease, background .25s ease;
}

.contact-method:hover {
    transform: translateY(-3px);
    border-color: rgba(47, 123, 255, .45);
    background: rgba(47, 123, 255, .1);
}

.contact-method .ico {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    border-radius: 13px;
    display: grid;
    place-items: center;
    background: var(--grad-soft);
    border: 1px solid rgba(47, 123, 255, .3);
}

.contact-method .ico svg {
    width: 23px;
    height: 23px;
    color: var(--brand-2);
}

.contact-method .cm-txt {
    min-width: 0;
}

.contact-method b {
    display: block;
    font-size: 14.5px;
    color: var(--txt-2);
    font-weight: 500;
}

.contact-method strong {
    display: block;
    font-size: 18px;
    letter-spacing: .6px;
    color: #fff;
}

.contact-method em {
    margin-left: auto;
    font-style: normal;
    font-size: 13px;
    color: #7fd8ff;
    white-space: nowrap;
}

.contact-tips {
    display: grid;
    gap: 10px;
    margin-top: 22px;
    padding-top: 20px;
    border-top: 1px solid var(--line);
}

.contact-tips li {
    display: flex;
    gap: 9px;
    align-items: flex-start;
    font-size: 14px;
    color: var(--txt-2);
}

.contact-tips svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    margin-top: 5px;
    color: var(--brand-2);
}

/* ---------- 13. 资讯卡片 ---------- */
.post-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
}

.post-thumb {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: linear-gradient(140deg, rgba(47, 123, 255, .3), rgba(0, 214, 196, .18));
}

.post-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .6s ease;
}

.post-card:hover .post-thumb img {
    transform: scale(1.07);
}

.post-cat {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 5px 13px;
    border-radius: 100px;
    background: rgba(6, 10, 19, .82);
    border: 1px solid var(--line-strong);
    font-size: 12px;
    color: #9fd9ff;
}

.post-body {
    padding: 22px 24px 26px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.post-meta {
    display: flex;
    gap: 16px;
    font-size: 12.5px;
    color: var(--muted);
    margin-bottom: 11px;
}

.post-body h3 {
    font-size: 17.5px;
    margin-bottom: 10px;
    line-height: 1.45;
}

.post-body p {
    font-size: 14.2px;
    color: var(--txt-2);
    flex: 1;
}

.post-more {
    margin-top: 16px;
    font-size: 13.5px;
    font-weight: 600;
    color: #7fd8ff;
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

/* 文章正文排版 */
.article {
    max-width: 900px;
}

.article--center {
    margin-left: auto;
    margin-right: auto;
}

.article h2 {
    font-size: 25px;
    margin: 44px 0 16px;
    padding-left: 16px;
    border-left: 4px solid transparent;
    border-image: var(--grad) 1;
}

.article h3 {
    font-size: 19px;
    margin: 30px 0 12px;
}

.article p {
    color: var(--txt-2);
    margin-bottom: 16px;
    font-size: 15.6px;
}

.article ul,
.article ol {
    margin: 0 0 20px 0;
    display: grid;
    gap: 10px;
}

.article ul li,
.article ol li {
    position: relative;
    padding-left: 24px;
    color: var(--txt-2);
    font-size: 15.4px;
}

.article ul li::before {
    content: "";
    position: absolute;
    left: 6px;
    top: 10px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--brand-2);
}

.article ol {
    counter-reset: ol;
}

.article ol li::before {
    counter-increment: ol;
    content: counter(ol);
    position: absolute;
    left: 0;
    top: 1px;
    font-weight: 700;
    color: var(--brand);
}

.note {
    padding: 20px 22px;
    border-radius: var(--radius-sm);
    background: rgba(47, 123, 255, .08);
    border: 1px solid rgba(47, 123, 255, .3);
    border-left: 4px solid var(--brand);
    color: var(--txt-2);
    font-size: 14.8px;
    margin: 24px 0;
}

/* ---------- 14. 侧栏 / 资讯布局 ---------- */
.layout-side {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 336px;
    gap: 44px;
    align-items: start;
}

.side {
    display: grid;
    gap: 22px;
    position: sticky;
    top: 100px;
}

.side-box {
    padding: 26px 24px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--line);
}

.side-box h4 {
    font-size: 16.5px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}

.side-links {
    display: grid;
    gap: 11px;
}

.side-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 11px 14px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .03);
    border: 1px solid var(--line);
    font-size: 14px;
    color: var(--txt-2);
}

.side-links a:hover {
    color: #fff;
    border-color: rgba(47, 123, 255, .45);
    background: rgba(47, 123, 255, .1);
    transform: translateX(4px);
}

.side-box--cta {
    background: linear-gradient(150deg, rgba(47, 123, 255, .2), rgba(0, 214, 196, .1));
    border-color: rgba(47, 123, 255, .38);
    text-align: center;
}

.side-box--cta h4 {
    border-bottom: none;
    padding-bottom: 0;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}

.tag-cloud a {
    padding: 6px 13px;
    border-radius: 100px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line);
    font-size: 12.8px;
    color: var(--txt-2);
}

.tag-cloud a:hover {
    color: #04101f;
    background: var(--grad);
    border-color: transparent;
}

/* ---------- 15. CTA 条 ---------- */
.band {
    position: relative;
    border-radius: var(--radius-lg);
    padding: 54px 48px;
    background: linear-gradient(120deg, #1b3468 0%, #0c2545 55%, #073c46 100%);
    border: 1px solid var(--line-strong);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 34px;
    flex-wrap: wrap;
}

.band::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(420px 260px at 92% 12%, rgba(0, 214, 196, .3), transparent 68%),
        radial-gradient(460px 300px at 4% 90%, rgba(47, 123, 255, .32), transparent 70%);
    pointer-events: none;
}

.band > * {
    position: relative;
    z-index: 2;
}

.band h2 {
    font-size: clamp(23px, 2.6vw, 32px);
    margin-bottom: 12px;
}

.band p {
    color: #c6d6f0;
    max-width: 620px;
    font-size: 15.6px;
}

/* ---------- 16. 页脚 ---------- */
.site-footer {
    background: #05080f;
    border-top: 1px solid var(--line);
    padding: 68px 0 0;
    margin-top: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.25fr;
    gap: 42px;
    padding-bottom: 48px;
}

.footer-brand p {
    color: var(--muted);
    font-size: 14.2px;
    margin: 18px 0 22px;
    max-width: 340px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, .05);
    border: 1px solid var(--line);
}

.footer-social svg {
    width: 19px;
    height: 19px;
    color: var(--txt-2);
}

.footer-social a:hover {
    background: var(--grad);
    border-color: transparent;
}

.footer-social a:hover svg {
    color: #05101d;
}

.footer-col h4 {
    font-size: 16px;
    margin-bottom: 18px;
}

.footer-col ul {
    display: grid;
    gap: 11px;
}

.footer-col a,
.footer-col li {
    font-size: 14.2px;
    color: var(--muted);
}

.footer-col a:hover {
    color: var(--brand-2);
    padding-left: 3px;
}

.footer-contact li {
    display: flex;
    gap: 11px;
    align-items: flex-start;
    margin-bottom: 13px;
}

.footer-contact svg {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
    margin-top: 4px;
    color: var(--brand-2);
}

.footer-contact b {
    color: var(--txt);
    font-size: 15px;
    letter-spacing: .4px;
}

.footer-bottom {
    border-top: 1px solid var(--line);
    padding: 22px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 13.2px;
    color: var(--muted);
}

.footer-kw {
    padding: 16px 0 26px;
    border-top: 1px solid var(--line);
    font-size: 12.6px;
    color: #5a6884;
    line-height: 2;
}

.footer-kw b {
    color: #7b8aa6;
    font-weight: 500;
}

/* ---------- 17. 悬浮组件 ---------- */
.mobile-bar {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 85;
    background: rgba(8, 13, 24, .97);
    border-top: 1px solid var(--line);
    backdrop-filter: blur(14px);
    padding: 10px 14px;
    gap: 10px;
}

.mobile-bar a {
    flex: 1;
    text-align: center;
    padding: 12px 10px;
    border-radius: 12px;
    font-size: 14.5px;
    font-weight: 600;
}

.mobile-bar a:first-child {
    background: rgba(255, 255, 255, .06);
    border: 1px solid var(--line-strong);
}

.mobile-bar a:last-child {
    background: var(--grad);
    color: #05101d;
}

.to-top {
    position: fixed;
    right: 22px;
    bottom: 22px;
    z-index: 80;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    background: rgba(10, 17, 32, .92);
    border: 1px solid var(--line-strong);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: .3s ease;
}

.to-top.is-show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.to-top svg {
    width: 20px;
    height: 20px;
    color: var(--txt-2);
}

.to-top:hover {
    background: var(--grad);
    border-color: transparent;
}

.to-top:hover svg {
    color: #05101d;
}

/* ---------- 18. 滚动动画 ---------- */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .7s ease, transform .7s ease;
}

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

.reveal-d1 {
    transition-delay: .09s;
}

.reveal-d2 {
    transition-delay: .18s;
}

.reveal-d3 {
    transition-delay: .27s;
}

/* ---------- 19. 联系页 ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 44px;
    align-items: start;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 22px;
    border-radius: var(--radius);
    background: var(--card);
    border: 1px solid var(--line);
    margin-bottom: 16px;
}

.contact-item .ico {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    border-radius: 13px;
    display: grid;
    place-items: center;
    background: var(--grad-soft);
    border: 1px solid rgba(47, 123, 255, .3);
}

.contact-item .ico svg {
    width: 22px;
    height: 22px;
    color: var(--brand-2);
}

.contact-item b {
    display: block;
    font-size: 15.5px;
    margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
    font-size: 14.4px;
    color: var(--txt-2);
}

.contact-item a:hover {
    color: var(--brand-2);
}

/* ---------- 20. 响应式 ---------- */
@media (max-width: 1140px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 46px;
    }

    .hero-float {
        display: none;
    }

    .grid-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .grid-5 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .steps {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }

    .layout-side {
        grid-template-columns: 1fr;
    }

    .side {
        position: static;
    }
}

@media (max-width: 980px) {
    .nav-toggle {
        display: block;
        z-index: 97;
    }

    .menu {
        position: fixed;
        top: 0;
        right: 0;
        width: min(88vw, 360px);
        height: 100vh;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 92px 22px 32px;
        background: rgba(7, 11, 20, .99);
        border-left: 1px solid var(--line-strong);
        visibility: hidden;
        clip-path: inset(0 0 0 100%);
        transition: clip-path .34s cubic-bezier(.4, 0, .2, 1), visibility .34s linear;
        overflow-y: auto;
        z-index: 95;
    }

    .menu.is-open {
        visibility: visible;
        clip-path: inset(0 0 0 0);
    }

    .nav {
        gap: 12px;
    }

    .nav-cta {
        gap: 10px;
        flex-shrink: 0;
    }

    .nav-cta .btn {
        padding: 11px 18px;
        font-size: 14.5px;
    }

    .menu > li > a {
        padding: 15px 16px;
        font-size: 16px;
        border-bottom: 1px solid rgba(255, 255, 255, .05);
        border-radius: 0;
    }

    .menu > li > a.is-active::after {
        display: none;
    }

    /* 二级栏目（移动端：点击折叠展开） */
    .has-sub > a {
        justify-content: space-between;
    }

    .submenu {
        position: static;
        min-width: 0;
        padding: 0;
        background: none;
        border: none;
        box-shadow: none;
        backdrop-filter: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height .3s ease;
    }

    .has-sub:hover .submenu {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .has-sub.is-open .submenu {
        max-height: 240px;
    }

    .submenu a {
        padding: 13px 16px 13px 30px;
        font-size: 15.5px;
        border-radius: 0;
        border-bottom: 1px solid rgba(255, 255, 255, .05);
        white-space: normal;
    }

    .submenu a:hover,
    .submenu a.is-active {
        background: rgba(47, 123, 255, .14);
    }

    .nav-mask {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, .62);
        backdrop-filter: blur(3px);
        opacity: 0;
        visibility: hidden;
        transition: .3s ease;
        z-index: 89;
    }

    .nav-mask.is-show {
        opacity: 1;
        visibility: visible;
    }

    .split {
        grid-template-columns: 1fr;
        gap: 38px;
    }

    .cta-grid {
        grid-template-columns: 1fr;
        gap: 34px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .grid-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .section {
        padding: 64px 0;
    }

    .page-hero {
        padding: 52px 0 46px;
    }

    .hero {
        padding: 56px 0 64px;
    }

    .grid-2,
    .grid-3,
    .grid-4,
    .grid-5,
    .steps {
        grid-template-columns: 1fr;
    }

    .hero-points {
        grid-template-columns: 1fr;
    }

    .cta-band {
        padding: 32px 22px;
    }

    .band {
        padding: 36px 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .mobile-bar {
        display: flex;
    }

    .to-top {
        bottom: 82px;
    }

    .nav-cta .btn {
        display: none;
    }

    .nav {
        min-height: 68px;
    }

    .brand img {
        width: 36px;
        height: 36px;
    }

    body {
        padding-bottom: 84px;
    }

    .btn-row .btn {
        width: 100%;
    }

    .topbar-info span:nth-child(2) {
        display: none;
    }

    .contact-method em {
        display: none;
    }
}

@media (max-width: 420px) {
    .wrap {
        padding: 0 18px;
    }

    .brand-txt strong {
        font-size: 16px;
    }
}