:root {
    --blue: #0a68c2;
    --blue-deep: #07539f;
    --cyan: #32acd6;
    --ink: #123352;
    --muted: #687f98;
    --line: #dce9f7;
    --pale: #f4f9ff;
}

/* 用 AI 二级页面 */
.ai-page {
    --ai-navy: #092c52;
    --ai-blue: #0b64b5;
    --ai-bright: #1689d8;
    --ai-cyan: #39c5d5;
    --ai-ice: #eff8ff;
    color: #173854;
    background: #fff;
    overflow-x: hidden
}

.ai-page main .wrap,
.ai-page .ai-footer .wrap {
    width: min(1240px, calc(100% - 64px))
}

.skip-link {
    position: fixed;
    z-index: 999;
    top: 12px;
    left: 12px;
    padding: 10px 16px;
    border-radius: 8px;
    background: #fff;
    color: #07539f;
    transform: translateY(-150%)
}

.skip-link:focus {
    transform: translateY(0)
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0
}

.ai-hero {
    position: relative;
    min-height: 610px;
    padding: 84px 0 0;
    color: #fff;
    background:
        radial-gradient(circle at 76% 28%, rgba(43, 198, 220, .18), transparent 29%),
        linear-gradient(123deg, #073b6c 0%, #0a5da3 56%, #087fa4 100%);
    overflow: hidden
}

.ai-hero:after {
    content: "";
    position: absolute;
    left: -5%;
    right: -5%;
    bottom: -75px;
    height: 135px;
    border-radius: 50% 50% 0 0;
    background: #fff
}

.ai-hero-grid,
.education-pattern {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(127, 208, 238, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(127, 208, 238, .07) 1px, transparent 1px);
    background-size: 52px 52px;
    mask-image: linear-gradient(90deg, transparent, #000 25%, #000 80%, transparent)
}

.ai-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(4px);
    pointer-events: none
}

.ai-glow-one {
    width: 360px;
    height: 360px;
    left: -180px;
    top: 60px;
    background: rgba(34, 164, 226, .18)
}

.ai-glow-two {
    width: 430px;
    height: 430px;
    right: -170px;
    bottom: -150px;
    background: rgba(55, 213, 208, .16)
}

.ai-hero-layout {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(460px, .95fr);
    align-items: center;
    gap: 65px
}

.ai-kicker {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 20px;
    color: #bfe3fb;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .08em
}

.ai-kicker span {
    display: grid;
    place-items: center;
    width: 40px;
    height: 25px;
    border-radius: 7px;
    color: #063d72;
    background: #54d9dc;
    font-size: 14px;
    letter-spacing: 0
}

.ai-hero-copy h1 {
    margin: 0;
    font-size: clamp(42px, 4.2vw, 62px);
    line-height: 1.2;
    letter-spacing: -.045em
}

.ai-hero-copy h1 em {
    color: #7fe4e2;
    font-style: normal
}

.ai-hero-copy>p {
    max-width: 620px;
    margin: 22px 0 31px;
    color: #cbe3f5;
    font-size: 17px;
    line-height: 1.9
}

.ai-search {
    display: grid;
    grid-template-columns: 26px minmax(0, 1fr) auto;
    align-items: center;
    max-width: 630px;
    padding: 7px 7px 7px 19px;
    border: 1px solid rgba(255, 255, 255, .32);
    border-radius: 13px;
    background: #fff;
    box-shadow: 0 18px 45px rgba(2, 35, 68, .25)
}

.ai-search svg,
.tool-search svg {
    width: 21px;
    fill: none;
    stroke: #6e8aa3;
    stroke-width: 2;
    stroke-linecap: round
}

.ai-search input,
.tool-search input {
    min-width: 0;
    height: 44px;
    border: 0;
    outline: 0;
    color: #173854;
    background: transparent;
    font-size: 15px
}

.ai-search input::placeholder,
.tool-search input::placeholder {
    color: #8aa0b2
}

.ai-search button {
    height: 44px;
    padding: 0 25px;
    border: 0;
    border-radius: 9px;
    color: #fff;
    background: linear-gradient(135deg, #0b70c6, #08a0bd);
    font-weight: 700;
    transition: transform .2s, box-shadow .2s
}

.ai-search button:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(8, 126, 183, .28)
}

.ai-hot-searches {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 14px;
    margin-top: 17px;
    color: #a9cce7;
    font-size: 14px
}

.ai-hot-searches button {
    padding: 0;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, .22);
    color: #d7ecfb;
    background: transparent;
    font-size: 14px
}

.ai-hot-searches button:hover {
    color: #7fe4e2;
    border-color: #7fe4e2
}

.ai-hero-visual {
    position: relative;
    height: 405px;
    isolation: isolate
}

.ai-core {
    position: absolute;
    z-index: 3;
    left: 50%;
    top: 50%;
    display: grid;
    place-items: center;
    width: 174px;
    height: 174px;
    border: 1px solid rgba(255, 255, 255, .42);
    border-radius: 46% 54% 55% 45% / 48% 44% 56% 52%;
    background: linear-gradient(145deg, rgba(255,255,255,.97), rgba(210,247,252,.9));
    box-shadow: 0 28px 75px rgba(0, 25, 57, .34), inset 0 0 32px rgba(48, 186, 210, .2);
    transform: translate(-50%, -50%);
    animation: ai-core-float 6s ease-in-out infinite
}

.ai-core:before,
.ai-core:after {
    content: "";
    position: absolute;
    border-radius: 50%;
    background: #4fd1d8;
    box-shadow: 0 0 18px #4fd1d8
}

.ai-core:before {
    width: 8px;
    height: 8px;
    top: 27px;
    right: 31px
}

.ai-core:after {
    width: 5px;
    height: 5px;
    left: 29px;
    bottom: 36px
}

.ai-core>span {
    margin-top: 22px;
    color: #0b64a9;
    font-size: 54px;
    font-weight: 900;
    letter-spacing: -.08em;
    text-shadow: 3px 4px 0 #6fe0dc4a
}

.ai-core small {
    align-self: start;
    margin-top: -8px;
    color: #4c7594;
    font-size: 14px;
    font-weight: 700
}

.ai-orbit {
    position: absolute;
    left: 50%;
    top: 50%;
    border: 1px solid rgba(122, 221, 232, .28);
    border-radius: 50%;
    transform: translate(-50%, -50%) rotate(-13deg)
}

.orbit-one {
    width: 360px;
    height: 250px
}

.orbit-two {
    width: 455px;
    height: 335px;
    border-style: dashed;
    transform: translate(-50%, -50%) rotate(18deg)
}

.ai-float-card {
    position: absolute;
    z-index: 4;
    display: grid;
    grid-template-columns: 43px auto;
    column-gap: 11px;
    min-width: 176px;
    padding: 14px 17px;
    border: 1px solid rgba(255, 255, 255, .26);
    border-radius: 14px;
    background: rgba(5, 57, 105, .78);
    box-shadow: 0 16px 34px rgba(1, 27, 52, .2);
    backdrop-filter: blur(11px)
}

.ai-float-card>span {
    grid-row: span 2;
    display: grid;
    place-items: center;
    width: 43px;
    height: 43px;
    border-radius: 12px;
    color: #073f72;
    background: #7fe4e2;
    font-size: 18px;
    font-weight: 900
}

.ai-float-card b {
    font-size: 14px
}

.ai-float-card small {
    color: #a9cde9;
    font-size: 14px;
    white-space: nowrap
}

.float-card-one {
    left: 4%;
    top: 5%;
    animation: ai-card-float 5s ease-in-out infinite
}

.float-card-two {
    right: -2%;
    top: 26%;
    animation: ai-card-float 5.8s .5s ease-in-out infinite
}

.float-card-three {
    left: 12%;
    bottom: 5%;
    animation: ai-card-float 6.4s .9s ease-in-out infinite
}

.ai-particle {
    position: absolute;
    z-index: 2;
    width: 8px;
    height: 8px;
    border-radius: 2px;
    background: #6ee1dd;
    box-shadow: 0 0 14px #6ee1dd
}

.ai-particle.p1 {left: 23%; top: 35%; transform: rotate(24deg)}
.ai-particle.p2 {right: 18%; bottom: 20%; transform: rotate(45deg)}
.ai-particle.p3 {right: 16%; top: 9%; width: 5px; height: 5px}

@keyframes ai-core-float {
    0%,100% {transform: translate(-50%, -50%) rotate(-1deg)}
    50% {transform: translate(-50%, calc(-50% - 11px)) rotate(2deg)}
}

@keyframes ai-card-float {
    0%,100% {transform: translateY(0)}
    50% {transform: translateY(-8px)}
}

.ai-hero-stats {
    position: relative;
    z-index: 4;
    display: flex;
    align-items: center;
    height: 90px;
    margin-top: 58px;
    padding: 0 31px;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 17px;
    background: rgba(5, 48, 89, .57);
    box-shadow: 0 18px 40px rgba(4, 35, 65, .15);
    backdrop-filter: blur(12px)
}

.ai-hero-stats>div {
    display: flex;
    align-items: baseline;
    gap: 9px;
    min-width: 180px;
    padding-right: 27px;
    margin-right: 27px;
    border-right: 1px solid rgba(255, 255, 255, .17)
}

.ai-hero-stats strong {
    color: #80e6e2;
    font-size: 29px
}

.ai-hero-stats span {
    color: #d4eafa;
    font-size: 14px
}

.ai-hero-stats>p {
    margin-left: auto;
    color: #accfe8;
    font-size: 14px
}

.ai-hero-stats>p span {
    color: #6fe0dc
}

.ai-quick {
    position: relative;
    z-index: 6;
    margin-top: -4px;
    padding: 55px 0 28px
}

.ai-quick-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 13px
}

.ai-quick-grid button {
    display: grid;
    grid-template-columns: 52px minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 13px;
    padding: 17px;
    border: 1px solid #e0edf7;
    border-radius: 14px;
    color: #173854;
    background: #fff;
    text-align: left;
    box-shadow: 0 10px 30px rgba(20, 67, 105, .07);
    transition: transform .25s, border-color .25s, box-shadow .25s
}

.ai-quick-grid button:hover {
    transform: translateY(-4px);
    border-color: #a9d8ed;
    box-shadow: 0 16px 34px rgba(19, 78, 124, .12)
}

.quick-icon {
    grid-row: span 2;
    display: grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    font-size: 18px;
    font-weight: 900
}

.quick-icon.cyan {color:#07859a;background:#e2f8f8}
.quick-icon.blue {color:#176bb9;background:#e8f3ff}
.quick-icon.violet {color:#7254c5;background:#f1edff}
.quick-icon.orange {color:#d36b35;background:#fff0e6}
.quick-icon.green {color:#14836b;background:#e8f8f2}

.ai-quick-grid b {
    align-self: end;
    font-size: 15px
}

.ai-quick-grid small {
    color: #8195a8;
    font-size: 14px
}

.ai-section {
    padding: 88px 0
}

.ai-section-head,
.education-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 37px
}

.ai-eyebrow {
    display: block;
    margin-bottom: 8px;
    color: #1987bd;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .14em
}

.ai-section-head h2,
.education-heading h2,
.guide-copy h2 {
    margin: 0;
    color: #103554;
    font-size: 32px;
    line-height: 1.3;
    letter-spacing: -.025em
}

.ai-section-head p,
.education-heading p {
    margin: 9px 0 0;
    color: #758da2;
    font-size: 15px
}

.ai-section-head>a {
    color: #1879ba;
    font-size: 14px;
    font-weight: 700
}

.ai-section-head>a span {
    display: inline-grid;
    place-items: center;
    width: 30px;
    height: 30px;
    margin-left: 8px;
    border-radius: 50%;
    color: #fff;
    background: #1687be
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px
}

.featured-card {
    position: relative;
    min-width: 0;
    padding: 25px;
    border: 1px solid #dcebf6;
    border-radius: 18px;
    background: linear-gradient(145deg, #fff, #fbfdff);
    box-shadow: 0 10px 32px rgba(16, 61, 96, .07);
    overflow: hidden;
    transition: transform .28s, box-shadow .28s, border-color .28s
}

.featured-card:before {
    content: "";
    position: absolute;
    width: 130px;
    height: 130px;
    right: -65px;
    top: -65px;
    border-radius: 50%;
    background: color-mix(in srgb, var(--tool-color) 9%, transparent)
}

.featured-card:hover {
    transform: translateY(-7px);
    border-color: color-mix(in srgb, var(--tool-color) 32%, #dcebf6);
    box-shadow: 0 20px 45px rgba(18, 63, 97, .13)
}

.featured-card-top,
.tool-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between
}

.tool-logo {
    position: relative;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    color: #fff;
    background: linear-gradient(145deg, color-mix(in srgb, var(--tool-color) 78%, #fff), var(--tool-color));
    box-shadow: 0 8px 17px color-mix(in srgb, var(--tool-color) 23%, transparent)
}

.tool-logo:after {
    content: "";
    position: absolute;
    inset: 4px;
    border: 1px solid rgba(255, 255, 255, .24);
    border-radius: 11px
}

.tool-logo.large {
    width: 60px;
    height: 60px;
    border-radius: 17px
}

.tool-logo.large:after {
    border-radius: 14px
}

.tool-logo i {
    position: relative;
    z-index: 1;
    font-size: 19px;
    font-style: normal;
    font-weight: 900;
    letter-spacing: -.04em
}

.tool-logo.large i {
    font-size: 22px
}

.official-mark {
    position: relative;
    z-index: 1;
    color: #7990a3;
    font-size: 14px
}

.official-mark i {
    display: inline-grid;
    place-items: center;
    width: 25px;
    height: 25px;
    margin-left: 5px;
    border-radius: 50%;
    color: var(--tool-color);
    background: color-mix(in srgb, var(--tool-color) 9%, #fff);
    font-style: normal
}

.tool-type {
    display: block;
    margin: 21px 0 5px;
    color: var(--tool-color);
    font-size: 14px;
    font-weight: 700
}

.featured-card h3 {
    margin: 0 0 4px;
    color: #153752;
    font-size: 23px
}

.featured-card>strong,
.tool-card>strong {
    display: block;
    color: #46677f;
    font-size: 15px
}

.featured-card>p {
    min-height: 50px;
    margin: 11px 0 17px;
    color: #73899c;
    font-size: 14px;
    line-height: 1.75
}

.tool-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 7px
}

.tool-tags span,
.tool-tags em {
    padding: 5px 9px;
    border-radius: 6px;
    color: #668095;
    background: #f1f6fa;
    font-size: 14px;
    font-style: normal
}

.card-go {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid #edf2f6;
    color: var(--tool-color);
    font-size: 14px;
    font-weight: 700
}

.card-go svg,
.education-go svg {
    width: 21px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    transition: transform .2s
}

.featured-card:hover .card-go svg,
.education-card:hover .education-go svg {
    transform: translateX(4px)
}

.education-zone {
    position: relative;
    color: #fff;
    background:
        radial-gradient(circle at 88% 20%, rgba(49, 199, 207, .17), transparent 24%),
        linear-gradient(130deg, #08375f, #075d91 62%, #087f95);
    overflow: hidden
}

.education-pattern {
    opacity: .6
}

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

.education-heading h2 {
    color: #fff
}

.education-heading p {
    color: #b8d8eb
}

.education-zone .ai-eyebrow {
    color: #65dcdd
}

.education-badge {
    display: grid;
    grid-template-columns: 54px auto;
    column-gap: 14px;
    padding: 13px 20px 13px 13px;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 14px;
    background: rgba(3, 46, 81, .48)
}

.education-badge>span {
    grid-row: span 2;
    display: grid;
    place-items: center;
    width: 54px;
    height: 54px;
    border-radius: 13px;
    color: #064873;
    background: #78e3df;
    font-weight: 900
}

.education-badge b {
    align-self: end;
    font-size: 14px
}

.education-badge small {
    color: #9dc8df;
    font-size: 14px
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px
}

.education-card {
    position: relative;
    display: grid;
    grid-template-columns: 82px minmax(0, 1fr) 42px;
    align-items: center;
    gap: 20px;
    min-height: 190px;
    padding: 24px;
    border: 1px solid rgba(255,255,255,.17);
    border-radius: 17px;
    background: rgba(255,255,255,.09);
    backdrop-filter: blur(12px);
    transition: transform .25s, background .25s, border-color .25s
}

.education-card:hover {
    transform: translateY(-5px);
    border-color: rgba(117, 227, 223, .55);
    background: rgba(255,255,255,.14)
}

.education-card-icon {
    align-self: start;
    display: grid;
    justify-items: center;
    gap: 12px
}

.education-card-icon>span {
    color: #70cdd8;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .15em
}

.education-card-body>span {
    color: #67dbdd;
    font-size: 14px;
    font-weight: 700
}

.education-card h3 {
    margin: 4px 0 9px;
    color: #fff;
    font-size: 20px
}

.education-card p {
    margin: 0 0 14px;
    color: #bbd6e7;
    font-size: 14px;
    line-height: 1.7
}

.education-card .tool-tags em {
    color: #b7d9e9;
    background: rgba(255,255,255,.09)
}

.education-go {
    display: grid;
    place-items: center;
    width: 39px;
    height: 39px;
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 50%;
    color: #73dcde
}

.scenario-strip {
    display: grid;
    grid-template-columns: 1fr 60px 1fr 60px 1fr 60px 1fr;
    align-items: center;
    margin-top: 42px;
    padding: 26px 30px;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 16px;
    background: rgba(3, 43, 75, .48)
}

.scenario-strip>div {
    display: grid;
    grid-template-columns: 39px auto;
    column-gap: 10px
}

.scenario-strip>div>span {
    grid-row: span 2;
    color: #6fe0dc;
    font-size: 22px;
    font-weight: 900
}

.scenario-strip b {
    font-size: 14px
}

.scenario-strip small {
    color: #8fbed6;
    font-size: 14px
}

.scenario-strip>i {
    height: 1px;
    margin: 0 12px;
    background: repeating-linear-gradient(90deg, rgba(109,221,220,.5) 0 5px, transparent 5px 9px)
}

.all-tools-section {
    background: #f5f9fc
}

.tools-heading {
    align-items: center
}

.tool-result {
    display: flex;
    align-items: baseline;
    gap: 7px;
    padding: 12px 18px;
    border: 1px solid #dbe9f3;
    border-radius: 12px;
    background: #fff
}

.tool-result strong {
    color: #0f78b8;
    font-size: 26px
}

.tool-result span {
    color: #7890a3;
    font-size: 14px
}

.tool-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    margin-bottom: 27px
}

.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 9px
}

.filter-tabs button {
    padding: 9px 18px;
    border: 1px solid #d9e7f1;
    border-radius: 9px;
    color: #526f85;
    background: #fff;
    font-size: 14px;
    transition: .2s
}

.filter-tabs button:hover,
.filter-tabs button.active {
    color: #fff;
    border-color: #0c72b5;
    background: #0c72b5;
    box-shadow: 0 7px 16px rgba(12, 114, 181, .2)
}

.tool-search {
    display: grid;
    grid-template-columns: 25px 220px;
    align-items: center;
    height: 44px;
    padding: 0 13px;
    border: 1px solid #d9e7f1;
    border-radius: 10px;
    background: #fff
}

.tool-search input {
    height: 42px
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px
}

.tool-card {
    position: relative;
    min-width: 0;
    min-height: 258px;
    padding: 21px;
    border: 1px solid #dde9f1;
    border-radius: 15px;
    background: #fff;
    box-shadow: 0 8px 22px rgba(16, 57, 88, .055);
    overflow: hidden;
    transition: transform .25s, border-color .25s, box-shadow .25s
}

.tool-card:after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    background: var(--tool-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .28s
}

.tool-card:hover {
    transform: translateY(-5px);
    border-color: color-mix(in srgb, var(--tool-color) 28%, #dde9f1);
    box-shadow: 0 16px 34px rgba(16, 57, 88, .11)
}

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

.tool-card-head>span:not(.tool-logo) {
    margin-left: auto;
    margin-right: 8px;
    color: #7b91a2;
    font-size: 14px
}

.tool-card-head>i {
    display: grid;
    place-items: center;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    color: var(--tool-color);
    background: color-mix(in srgb, var(--tool-color) 8%, #fff);
    font-size: 14px;
    font-style: normal
}

.tool-card h3 {
    margin: 19px 0 3px;
    color: #153752;
    font-size: 19px
}

.tool-card>p {
    min-height: 67px;
    margin: 10px 0 15px;
    color: #758a9b;
    font-size: 14px;
    line-height: 1.65
}

.empty-state {
    padding: 70px 20px;
    border: 1px dashed #c7dae9;
    border-radius: 17px;
    background: #fff;
    text-align: center
}

.empty-state>span {
    color: #75a9ca;
    font-size: 45px
}

.empty-state h3 {
    margin: 10px 0 5px;
    font-size: 20px
}

.empty-state p {
    margin: 0 0 18px;
    color: #8095a5;
    font-size: 14px
}

.empty-state button {
    padding: 9px 18px;
    border: 0;
    border-radius: 8px;
    color: #fff;
    background: #0d73b5
}

.ai-guide {
    padding: 92px 0;
    background: #fff
}

.guide-layout {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: 85px;
    align-items: center
}

.guide-copy {
    position: relative;
    padding: 37px;
    border-radius: 20px;
    color: #fff;
    background:
        radial-gradient(circle at 90% 10%, rgba(90,216,220,.23), transparent 31%),
        linear-gradient(145deg, #08365f, #086f94);
    overflow: hidden
}

.guide-copy:after {
    content: "AI";
    position: absolute;
    right: -16px;
    bottom: -54px;
    color: rgba(255,255,255,.055);
    font-size: 170px;
    font-weight: 900;
    line-height: 1
}

.guide-copy .ai-eyebrow {
    color: #6edddb
}

.guide-copy h2 {
    position: relative;
    z-index: 1;
    color: #fff;
    font-size: 34px
}

.guide-copy p {
    position: relative;
    z-index: 1;
    margin: 17px 0 27px;
    color: #bad8e8;
    font-size: 15px;
    line-height: 1.9
}

.guide-copy a {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #77e2df;
    font-size: 14px;
    font-weight: 700
}

.guide-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 17px
}

.guide-cards article {
    display: grid;
    grid-template-columns: 45px minmax(0, 1fr);
    gap: 13px;
    min-height: 139px;
    padding: 21px;
    border: 1px solid #dfebf3;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 8px 24px rgba(16, 59, 91, .06);
    transition: transform .2s, border-color .2s
}

.guide-cards article:hover {
    transform: translateY(-3px);
    border-color: #9fcfe3
}

.guide-cards article>span {
    display: grid;
    place-items: center;
    width: 43px;
    height: 43px;
    border-radius: 12px;
    color: #0b75ad;
    background: #e9f6fb;
    font-size: 14px;
    font-weight: 900
}

.guide-cards h3 {
    margin: 1px 0 6px;
    color: #173b56;
    font-size: 16px
}

.guide-cards p {
    margin: 0;
    color: #768c9c;
    font-size: 14px;
    line-height: 1.65
}

.ai-footer {
    color: #c4dcef;
    background: linear-gradient(120deg, #06345f, #064f85 65%, #076c8d)
}

.ai-footer-main {
    display: grid;
    grid-template-columns: 1.3fr .65fr 1fr 1.1fr;
    gap: 55px;
    padding-top: 52px;
    padding-bottom: 43px
}

.ai-footer-brand img {
    display: block;
    width: 205px;
    filter: brightness(0) invert(1)
}

.ai-footer-brand p,
.ai-footer-note p {
    margin: 15px 0 0;
    color: #9fc2dc;
    font-size: 14px;
    line-height: 1.75
}

.ai-footer-links {
    display: grid;
    align-content: start;
    gap: 9px
}

.ai-footer-links h3 {
    margin: 0 0 5px;
    color: #fff;
    font-size: 15px
}

.ai-footer-links a {
    color: #a9c9e0;
    font-size: 14px
}

.ai-footer-links a:hover {
    color: #6ce0de
}

.ai-footer-note {
    padding: 17px 19px;
    border: 1px solid rgba(255,255,255,.13);
    border-radius: 12px;
    background: rgba(3,40,72,.35)
}

.ai-footer-note>span {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 5px;
    color: #074a70;
    background: #6cdedb;
    font-size: 14px;
    font-weight: 800
}

.ai-footer-note p {
    margin-top: 9px
}

.ai-footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 17px;
    padding-bottom: 17px;
    border-top: 1px solid rgba(255,255,255,.1);
    color: #8cb2ce;
    font-size: 14px
}

.ai-back-top {
    position: fixed;
    z-index: 70;
    right: 28px;
    bottom: 28px;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 13px;
    color: #fff;
    background: #0b70ac;
    box-shadow: 0 10px 25px rgba(6, 74, 118, .25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: .2s
}

.ai-back-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0)
}

.reveal {
    opacity: 0;
    transform: translateY(18px)
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity .52s var(--delay, 0ms), transform .52s var(--delay, 0ms)
}

@media (max-width: 1100px) {
    .ai-hero-layout {grid-template-columns: minmax(0, 1fr) 430px;gap:30px}
    .ai-hero-copy h1 {font-size:45px}
    .ai-hero-stats>div {min-width:145px;margin-right:18px;padding-right:18px}
    .ai-hero-stats>p {display:none}
    .ai-quick-grid {grid-template-columns: repeat(3, 1fr)}
    .featured-grid {grid-template-columns: repeat(2, 1fr)}
    .tool-grid {grid-template-columns: repeat(3, 1fr)}
    .scenario-strip {grid-template-columns: repeat(4, 1fr);gap:20px}
    .scenario-strip>i {display:none}
    .guide-layout {gap:38px}
    .ai-footer-main {grid-template-columns: 1.2fr .7fr 1fr;gap:35px}
    .ai-footer-note {grid-column: 1/-1}
}

@media (max-width: 820px) {
    .ai-page main .wrap,
    .ai-page .ai-footer .wrap {width:min(100% - 36px, 680px)}
    .ai-hero {min-height:auto;padding-top:55px;padding-bottom:72px}
    .ai-hero:after {height:90px;bottom:-60px}
    .ai-hero-layout {grid-template-columns:1fr}
    .ai-hero-copy {text-align:center}
    .ai-hero-copy h1 {font-size:40px}
    .ai-hero-copy>p {margin-inline:auto}
    .ai-search {margin-inline:auto;text-align:left}
    .ai-hot-searches {justify-content:center}
    .ai-hero-visual {height:330px;margin-top:10px}
    .orbit-two {width:410px;height:300px}
    .ai-hero-stats {height:auto;margin-top:25px;padding:17px 18px;justify-content:center}
    .ai-hero-stats>div {min-width:auto;flex:1;display:grid;justify-items:center;gap:0;margin:0;padding:0 9px}
    .ai-hero-stats>div:last-of-type {border-right:0}
    .ai-hero-stats strong {font-size:24px}
    .ai-quick {padding-top:38px}
    .ai-quick-grid {grid-template-columns:repeat(2,1fr)}
    .ai-section {padding:68px 0}
    .education-grid {grid-template-columns:1fr}
    .education-badge {display:none}
    .scenario-strip {grid-template-columns:repeat(2,1fr)}
    .tool-toolbar {align-items:stretch;flex-direction:column}
    .tool-search {grid-template-columns:25px minmax(0,1fr)}
    .tool-grid {grid-template-columns:repeat(2,1fr)}
    .guide-layout {grid-template-columns:1fr}
    .ai-footer-main {grid-template-columns:repeat(2,1fr)}
    .ai-footer-brand {grid-column:1/-1}
}

@media (max-width: 560px) {
    .ai-page main .wrap,
    .ai-page .ai-footer .wrap {width:calc(100% - 28px)}
    .ai-hero {padding-top:43px}
    .ai-kicker {margin-bottom:15px}
    .ai-hero-copy h1 {font-size:34px;line-height:1.26}
    .ai-hero-copy>p {margin:17px auto 24px;font-size:15px;line-height:1.75}
    .ai-search {grid-template-columns:23px minmax(0,1fr);padding-right:12px}
    .ai-search button {grid-column:1/-1;width:100%;margin-top:6px}
    .ai-hot-searches {display:none}
    .ai-hero-visual {height:286px}
    .ai-core {width:137px;height:137px}
    .ai-core>span {font-size:43px}
    .orbit-one {width:275px;height:190px}
    .orbit-two {width:335px;height:248px}
    .ai-float-card {min-width:144px;padding:10px;grid-template-columns:36px auto;column-gap:8px}
    .ai-float-card>span {width:36px;height:36px;font-size:16px}
    .ai-float-card small {display:none}
    .float-card-one {left:-2%;top:3%}
    .float-card-two {right:-3%;top:32%}
    .float-card-three {left:5%;bottom:2%}
    .ai-hero-stats {margin-top:19px;padding:13px 5px}
    .ai-hero-stats strong {font-size:20px}
    .ai-hero-stats span {font-size:14px}
    .ai-quick-grid {display:flex;gap:11px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px}
    .ai-quick-grid button {min-width:210px;scroll-snap-align:start}
    .ai-section-head,.education-heading {align-items:flex-start;flex-direction:column;margin-bottom:28px}
    .ai-section-head h2,.education-heading h2,.guide-copy h2 {font-size:27px}
    .ai-section-head>a {align-self:flex-end}
    .featured-grid {grid-template-columns:1fr}
    .featured-card>p {min-height:auto}
    .education-card {grid-template-columns:58px minmax(0,1fr);gap:14px;padding:19px}
    .education-card-icon .tool-logo.large {width:51px;height:51px}
    .education-go {display:none}
    .education-card h3 {font-size:18px}
    .scenario-strip {grid-template-columns:1fr;padding:22px;gap:19px}
    .tools-heading {display:grid;grid-template-columns:1fr auto}
    .tools-heading>div:first-child {grid-column:1/-1}
    .tool-result {padding:8px 13px}
    .tool-result strong {font-size:21px}
    .filter-tabs {display:grid;grid-template-columns:repeat(3,1fr);gap:7px}
    .filter-tabs button {padding:8px 7px}
    .filter-tabs button:first-child {grid-column:span 2}
    .tool-grid {grid-template-columns:1fr}
    .tool-card {min-height:auto}
    .tool-card>p {min-height:auto}
    .guide-copy {padding:28px 24px}
    .guide-cards {grid-template-columns:1fr}
    .guide-cards article {min-height:auto}
    .ai-footer-main {grid-template-columns:1fr;gap:27px}
    .ai-footer-brand {grid-column:auto}
    .ai-footer-bottom {flex-direction:column;gap:5px}
    .ai-back-top {right:16px;bottom:16px}
}

@media (prefers-reduced-motion: reduce) {
    .ai-page * {scroll-behavior:auto !important;animation:none !important;transition-duration:.01ms !important}
    .reveal {opacity:1;transform:none}
}

* {
    box-sizing: border-box
}

html {
    scroll-behavior: smooth
}

body {
    margin: 0;
    min-width: 320px;
    font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.55;
    color: var(--ink);
    background: #fff
}

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

button {
    font: inherit;
    color: inherit;
    cursor: pointer
}

a,
button {
    -webkit-tap-highlight-color: transparent
}

button:focus-visible,
a:focus-visible,
select:focus-visible {
    outline: 3px solid #70c9ff;
    outline-offset: 3px
}

.wrap {
    width: min(1240px, calc(100% - 80px));
    margin-inline: auto
}

/* Top information bar */
.utility {
    background: linear-gradient(90deg, #edf7ff, #f7fbff 55%, #e7f5ff);
    border-bottom: 1px solid #d7eaf9;
    color: #52718d;
    font-size: 14px
}

.utility-row {
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px
}

.utility-actions {
    display: flex;
    align-items: center;
    gap: 22px
}

.favorite-button,
.wechat-trigger {
    position: relative;
    border: 0;
    background: transparent;
    padding: 0;
    color: #416b92;
    font-size: 14px
}

.favorite-button>span,
.wechat-trigger>span {
    margin-right: 5px;
    color: var(--blue);
    vertical-align: -1px
}

.favorite-button:hover,
.wechat-trigger:hover {
    color: var(--blue)
}

.favorite-button.hint-visible:after {
    content: "请按 Ctrl+D / ⌘D 添加收藏";
    position: absolute;
    z-index: 30;
    right: 0;
    top: 30px;
    width: 198px;
    padding: 9px 12px;
    border-radius: 7px;
    background: #154876;
    color: #fff;
    font-size: 14px;
    text-align: center;
    box-shadow: 0 10px 25px #12345230
}

.wechat-tool {
    position: relative
}

.wechat-popover {
    position: absolute;
    z-index: 31;
    right: -20px;
    top: 30px;
    width: 180px;
    padding: 13px;
    background: #fff;
    border: 1px solid #dceafa;
    border-radius: 11px;
    box-shadow: 0 16px 35px #173d6522;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-5px);
    transition: .2s
}

.wechat-tool:hover .wechat-popover,
.wechat-tool:focus-within .wechat-popover,
.wechat-tool.open .wechat-popover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0)
}

.wechat-popover img {
    display: block;
    width: 130px;
    height: 130px;
    margin: auto
}

.wechat-popover span {
    display: block;
    margin-top: 7px;
    font-size: 14px;
    color: #58738e
}

.system-date {
    padding-left: 22px;
    border-left: 1px solid #cce2f5;
    color: #35678f;
    font-size: 14px;
    white-space: nowrap
}

/* Header and navigation */
.header {
    position: relative;
    z-index: 20;
    background: #fff
}

.brand-row {
    height: 96px;
    display: flex;
    align-items: center;
    gap: 28px;
    background: linear-gradient(100deg, #f2f9ff 0, #fff 42%, #eaf7ff 100%)
}

.brand-row:before,
.brand-row:after {
    content: "";
    position: absolute;
    pointer-events: none
}

.brand-row:before {
    width: 370px;
    height: 95px;
    left: 0;
    background: linear-gradient(90deg, #d7efff88, transparent)
}

.brand-row:after {
    right: 12%;
    width: 180px;
    height: 95px;
    background: radial-gradient(circle at center, #58c8ff25 0 2px, transparent 3px);
    background-size: 20px 20px
}

.brand {
    position: relative;
    z-index: 1;
    display: flex
}

.brand img {
    display: block;
    width: 242px;
    height: auto
}

.brand-motto {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 13px;
    padding-left: 28px;
    border-left: 1px solid #cfe2f5;
    color: #557a9f;
    font-size: 15px
}

.brand-motto i {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--blue)
}

.login {
    position: relative;
    z-index: 1;
    margin-left: auto;
    padding: 12px 22px;
    border-radius: 8px;
    color: #fff;
    background: linear-gradient(135deg, #0086ff, #0066dc);
    box-shadow: 0 10px 21px #007bff35;
    font-size: 15px;
    transition: .2s
}

.login:hover {
    transform: translateY(-2px);
    color: #fff;
    box-shadow: 0 14px 25px #007bff48
}

.login span {
    margin-left: 17px
}

.menu-toggle {
    display: none
}

.navigation {
    position: sticky;
    top: 0;
    z-index: 25;
    background: linear-gradient(90deg, #0063d1, #007bff 50%, #078ce9);
    box-shadow: 0 6px 18px #0756ad1c
}

.nav-grid {
    display: flex;
    justify-content: space-between
}

.nav-item {
    position: relative
}

.nav-item>a,
.nav-item>button {
    display: block;
    border: 0;
    background: transparent;
    padding: 17px 15px;
    color: #eaf6ff;
    font-size: 16px;
    font-weight: 600;
    white-space: nowrap;
    transition: .2s
}

.nav-item:first-child>a,
.nav-item:hover>button,
.nav-item.open>button {
    color: #fff
}

.nav-item:first-child>a:after,
.nav-item>button:before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 0;
    height: 4px;
    border-radius: 4px 4px 0 0;
    background: #fff;
    transition: .2s
}

.nav-item:first-child>a:after,
.nav-item:hover>button:before,
.nav-item.open>button:before {
    width: 27px
}

.nav-item>button:after {
    content: "▾";
    margin-left: 7px;
    color: #c6e7ff;
    font-size: 14px
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    min-width: 220px;
    list-style: none;
    margin: 0;
    padding: 9px;
    transform: translate(-50%, 8px);
    border: 1px solid #dbeafa;
    border-radius: 0 0 10px 10px;
    background: #fff;
    box-shadow: 0 17px 35px #08376228;
    opacity: 0;
    visibility: hidden;
    transition: .2s
}

.nav-item:last-child .dropdown {
    left: auto;
    right: 0;
    transform: translateY(8px)
}

.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown,
.nav-item.open .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, 0)
}

.nav-item:last-child:hover .dropdown,
.nav-item:last-child:focus-within .dropdown,
.nav-item:last-child.open .dropdown {
    transform: translateY(0)
}

.dropdown a {
    display: block;
    padding: 11px 14px;
    border-radius: 6px;
    font-size: 15px;
    color: #365a7b
}

.dropdown a:hover {
    color: var(--blue);
    background: #edf7ff
}

/* Hero and topic navigation */
.hero {
    position: relative;
    isolation: isolate;
    min-height: 615px;
    overflow: hidden;
    color: #fff;
    background: linear-gradient(120deg, #0058c5, #007bff 50%, #20a9ff)
}

.hero:before {
    content: "";
    position: absolute;
    z-index: -1;
    right: -130px;
    top: -510px;
    width: 1030px;
    height: 1030px;
    border: 1px solid #ffffff29;
    border-radius: 50%;
    box-shadow: 0 0 0 82px #ffffff08, 0 0 0 183px #ffffff05
}

.hero:after {
    content: "";
    position: absolute;
    z-index: 4;
    left: -4%;
    bottom: -65px;
    width: 108%;
    height: 110px;
    border-radius: 50% 50% 0 0/100% 100% 0 0;
    transform: rotate(-2deg);
    background: #fff
}

.hero-orbit {
    position: absolute;
    width: 490px;
    height: 490px;
    right: max(6%, calc((100% - 1240px)/2 + 55px));
    top: 35px;
    border: 1px solid #ffffff29;
    border-radius: 50%;
    background: radial-gradient(circle, #8edbff32 0, transparent 65%);
    box-shadow: 0 0 0 44px #ffffff08
}

.hero-spark {
    position: absolute;
    z-index: 2;
    font-size: 28px;
    color: #d6f5ff;
    animation: softFloat 3.5s ease-in-out infinite
}

.spark-one {
    left: 54%;
    top: 80px
}

.spark-two {
    right: 8%;
    top: 370px;
    color: #fff0a9;
    font-size: 19px;
    animation-delay: -1.4s
}

.hero-art {
    position: absolute;
    z-index: 2;
    left: calc(50% + 10px);
    top: 20px;
    width: min(680px, 49vw);
    height: 515px;
    background: url("assets/topic-classroom-v2.png") center/contain no-repeat;
    filter: drop-shadow(0 24px 24px #00458c2e);
    transition: opacity .25s, transform .25s
}

.hero-content {
    position: relative;
    z-index: 3;
    padding-top: 82px;
    pointer-events: none
}

.hero-content a,
.hero-content button {
    pointer-events: auto
}

.topic-label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #d2efff;
    font-size: 15px;
    letter-spacing: 2px
}

.topic-label>span {
    display: block;
    width: 25px;
    height: 2px;
    background: #9ee7ff
}

.hero h1 {
    margin: 18px 0 16px;
    font-size: 46px;
    line-height: 1.42;
    letter-spacing: 1px;
    font-weight: 700
}

.hero h1 em {
    font-style: normal;
    color: #bceeff;
    font-size: .92em
}

.hero-content>p {
    max-width: 460px;
    margin: 0 0 26px;
    color: #dcf2ff;
    font-size: 16px;
    line-height: 1.8
}

.hero-link {
    display: inline-flex;
    align-items: center;
    gap: 45px;
    padding: 14px 25px;
    border-radius: 8px;
    background: #fff;
    color: #0863c7;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 0 10px 23px #0048a635;
    transition: .2s
}

.hero-link:hover {
    color: #0056ba;
    transform: translateY(-2px);
    box-shadow: 0 15px 28px #0048a64d
}

.hero-link span {
    font-size: 22px;
    line-height: 1
}

.carousel-controls {
    position: absolute;
    z-index: 5;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 11px;
    width: min(1240px, calc(100% - 80px))
}

.arrow {
    width: 38px;
    height: 38px;
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    border: 1px solid #ffffff72;
    border-radius: 50%;
    color: #fff;
    background: #ffffff18;
    font-size: 19px;
    transition: .2s
}

.arrow:hover {
    background: #fff;
    color: #0671da
}

.topic-thumbs {
    flex: 1;
    display: flex;
    gap: 9px;
    min-width: 0;
    padding: 3px 0;
    overflow-x: auto;
    scrollbar-width: none
}

.topic-thumbs::-webkit-scrollbar {
    display: none
}

.topic-thumb {
    --thumb-start: #0a4a8f;
    --thumb-mid: #0b66b2;
    --thumb-end: #2383b8;
    position: relative;
    flex: 0 0 125px;
    height: 54px;
    overflow: hidden;
    border: 1px solid #ffffff40;
    border-radius: 7px;
    padding: 0;
    background: #073a8680;
    color: #fff;
    text-align: left;
    transition: .2s
}

.topic-thumb img {
    position: absolute;
    right: -4px;
    bottom: -8px;
    width: 75px;
    height: 75px;
    object-fit: contain;
    opacity: .7
}

.topic-thumb:after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, #063b8499 0, #063b8422 95%)
}

.topic-thumb span {
    position: relative;
    z-index: 1;
    display: block;
    width: 64px;
    padding: 9px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3
}

.topic-thumb:hover,
.topic-thumb.active {
    border-color: #fff;
    background: #ffffff2a;
    box-shadow: 0 0 0 2px #ffffff1f
}

.topic-thumb.active:before {
    content: "";
    position: absolute;
    z-index: 2;
    left: 8px;
    top: 5px;
    width: 19px;
    height: 2px;
    background: #fff
}

.all-topics {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 6px;
    color: #e4f5ff;
    font-size: 14px;
    white-space: nowrap
}

.all-topics:hover {
    color: #fff
}

.all-topics span {
    font-size: 18px
}

.hero-bottom-label {
    position: absolute;
    right: max(40px, calc((100% - 1240px)/2));
    bottom: 87px;
    color: #d5efff99;
    font-size: 14px;
    letter-spacing: 2px
}

/* Services, news and shared headings */
.services {
    position: relative;
    z-index: 7;
    margin-top: -51px
}

.services>.wrap {
    padding: 27px 27px 29px;
    border: 1px solid #e3edf8;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 21px 45px #184a811a
}

.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 25px;
    margin-bottom: 34px
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #4385bf;
    font-size: 14px;
    letter-spacing: 1.4px
}

.eyebrow:before {
    content: "";
    width: 18px;
    height: 3px;
    border-radius: 2px;
    background: var(--blue)
}

h2 {
    margin: 11px 0 0;
    font-size: 32px;
    line-height: 1.25;
    letter-spacing: .5px
}

.compact {
    align-items: center;
    margin-bottom: 25px
}

.compact h2 {
    margin: 0;
    font-size: 21px
}

.section-note {
    font-size: 14px;
    color: #7890a9
}

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

.service-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 5px 12px 9px;
    border-right: 1px solid #e7eef7;
    text-align: center;
    transition: .2s
}

.service-card:last-child {
    border-right: 0
}

.service-icon {
    display: grid;
    place-items: center;
    width: 68px;
    height: 68px;
    margin-bottom: 18px;
    border-radius: 22px;
    background: linear-gradient(135deg, #eaf5ff, #dceeff);
    box-shadow: inset 0 0 0 1px #d9eaff;
    color: #007bff;
    transform: rotate(-5deg);
    transition: .25s
}

.service-icon svg {
    width: 34px;
    height: 34px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.6;
    stroke-linecap: round;
    stroke-linejoin: round;
    transform: rotate(5deg)
}

.service-card:nth-child(2) .service-icon {
    background: #eef0ff;
    color: #6879de
}

.service-card:nth-child(3) .service-icon {
    background: #e6faf7;
    color: #1aab9c
}

.service-card:nth-child(4) .service-icon {
    background: #fff4de;
    color: #dfa42c
}

.service-card:nth-child(5) .service-icon {
    background: #fff0e9;
    color: #ed8f61
}

.service-card h3 {
    margin: 0 0 8px;
    font-size: 18px;
    line-height: 1.3
}

.service-card p {
    margin: 0;
    color: #7990a7;
    font-size: 14px
}

.service-arrow {
    position: absolute;
    right: 25px;
    top: 9px;
    color: #90b5d6;
    font-size: 18px;
    opacity: 0;
    transition: .2s
}

.service-card:hover {
    color: var(--blue)
}

.service-card:hover .service-icon {
    transform: rotate(0) translateY(-4px);
    box-shadow: 0 10px 20px #007bff1d
}

.service-card:hover .service-arrow {
    opacity: 1
}

.more {
    display: flex;
    align-items: center;
    gap: 15px;
    color: #5c86ad;
    font-size: 15px;
    white-space: nowrap
}

.more span {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border: 1px solid #b7d8f7;
    border-radius: 50%;
    font-size: 18px;
    color: var(--blue);
    transition: .2s
}

.more:hover {
    color: var(--blue)
}

.more:hover span {
    background: var(--blue);
    color: #fff
}

.news-section {
    padding: 89px 0 90px
}

.news-layout {
    display: grid;
    grid-template-columns: .84fr 1.55fr;
    gap: 52px
}

.news-feature {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid #e3edf8;
    border-radius: 13px;
    background: #fff;
    box-shadow: 0 12px 29px #1c568a0d;
    transition: .25s
}

.news-feature:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 34px #1c568a18
}

.news-feature-image {
    position: relative;
    height: 212px;
    overflow: hidden
}

.news-feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: 78% center;
    transition: .4s
}

.news-feature:hover img {
    transform: scale(1.04)
}

.news-feature-image>span {
    position: absolute;
    left: 18px;
    top: 18px;
    padding: 6px 11px;
    border-radius: 4px;
    background: #ffffffeb;
    color: #0874de;
    font-size: 14px
}

.news-feature-body {
    padding: 25px 27px
}

.news-feature-body time {
    color: #6987a4;
    font-size: 14px
}

.news-feature-body h3 {
    margin: 13px 0 20px;
    font-size: 20px;
    line-height: 1.7
}

.feature-link {
    display: flex;
    justify-content: space-between;
    color: var(--blue);
    font-size: 14px
}

.feature-link b {
    font-size: 20px;
    font-weight: 400
}

.news-panel {
    min-width: 0
}

.news-panel-head {
    display: flex;
    align-items: center;
    gap: 16px;
    height: 54px;
    border-bottom: 1px solid #dfeaf5;
    color: #0874de;
    font-size: 20px;
    font-weight: 600
}

.news-panel-head i {
    width: 31px;
    height: 3px;
    border-radius: 2px;
    background: var(--blue)
}

.news-panel ul {
    list-style: none;
    margin: 0;
    padding: 0
}

.news-panel li a {
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: 56px;
    border-bottom: 1px solid #edf2f7;
    font-size: 15px;
    transition: .2s
}

.news-type {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 72px;
    padding: 4px 8px;
    border-radius: 4px;
    background: #e6f3ff;
    color: #0874de;
    font-size: 14px
}

.news-type.notice {
    background: #fff1e5;
    color: #e37824
}

.news-title {
    min-width: 0;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis
}

.news-panel time {
    color: #758ca4;
    font-size: 14px;
    white-space: nowrap
}

.news-row-arrow {
    color: #98b6d2;
    font-size: 18px
}

.news-panel li a:hover {
    color: var(--blue);
    padding-left: 5px
}

.news-all-links {
    display: flex;
    justify-content: flex-end;
    gap: 30px;
    padding-top: 19px
}

.news-all-links a {
    display: flex;
    gap: 9px;
    color: #4d7fa8;
    font-size: 14px
}

.news-all-links a:hover {
    color: var(--blue)
}

.news-all-links span {
    font-size: 18px;
    line-height: 1
}

/* Technology map */
.data-section {
    position: relative;
    overflow: hidden;
    padding: 83px 0 76px;
    color: #eff8ff;
    background: linear-gradient(135deg, #003b87, #0068d9 56%, #008ae7)
}

.data-section:before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: .32;
    background: radial-gradient(circle at 8% 0, #46c8ff61, transparent 26%), radial-gradient(circle at 90% 90%, #00428c, transparent 35%)
}

.data-section .wrap {
    position: relative;
    z-index: 1
}

.data-section .eyebrow {
    color: #b3e7ff
}

.data-section .eyebrow:before {
    background: #b3e7ff
}

.data-section h2 {
    color: #fff
}

.data-section .more {
    color: #dcf4ff
}

.data-section .more span {
    border-color: #8fd3ff;
    color: #fff
}

.data-section .more:hover span {
    background: #fff;
    color: #007bff
}

.data-layout {
    display: grid;
    grid-template-columns: .82fr 1.35fr;
    gap: 88px;
    align-items: center
}

.data-intro {
    margin: 0 0 28px;
    color: #c5e9ff;
    font-size: 16px
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px
}

.stat {
    position: relative;
    overflow: hidden;
    padding: 23px 20px 20px;
    border: 1px solid #7bd0ff4a;
    border-radius: 12px;
    background: #ffffff12;
    backdrop-filter: blur(6px);
    box-shadow: inset 0 1px #ffffff22
}

.stat:before {
    content: "";
    position: absolute;
    top: 0;
    left: 20px;
    width: 36px;
    height: 3px;
    border-radius: 0 0 3px 3px;
    background: #75d4ff
}

.stat strong {
    display: block;
    margin-bottom: 8px;
    font-family: Arial, sans-serif;
    font-size: 33px;
    letter-spacing: -.5px;
    color: #fff
}

.stat>span:last-child {
    color: #d5efff;
    font-size: 14px
}

.stat-icon {
    position: absolute;
    right: 17px;
    bottom: 20px;
    color: #8fd8ff
}

.stat-icon svg {
    width: 27px;
    height: 27px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.4;
    stroke-linecap: round;
    stroke-linejoin: round
}

.data-footnote {
    margin: 21px 0 0;
    color: #c9eaff;
    font-size: 14px
}

.map-area {
    position: relative;
    min-height: 505px;
    overflow: hidden;
    border: 1px solid #72c6ff51;
    border-radius: 18px;
    background: linear-gradient(145deg, #ffffff12, #c8edff0c);
    box-shadow: inset 0 0 50px #042a7048
}

.map-grid {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(#8edbff18 1px, transparent 1px), linear-gradient(90deg, #8edbff18 1px, transparent 1px);
    background-size: 24px 24px;
    mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 82%, transparent)
}

.map-image {
    position: absolute;
    left: 6%;
    top: 10%;
    width: 88%;
    height: 80%;
    object-fit: contain;
    opacity: .76;
    filter: brightness(0) invert(1) sepia(.3) saturate(1.8) hue-rotate(165deg) drop-shadow(0 0 20px #93e1ff88)
}

.map-hud {
    position: absolute;
    z-index: 3;
    left: 24px;
    top: 22px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding-left: 13px;
    border-left: 3px solid #86d9ff
}

.map-hud span {
    color: #bbecff;
    font-size: 14px
}

.map-hud strong {
    font-size: 17px;
    color: #fff
}

.county-buttons {
    position: absolute;
    z-index: 4;
    inset: 0
}

.county-buttons button {
    position: absolute;
    transform: translate(-50%, -50%);
    border: 1px solid #b9eaff88;
    border-radius: 5px;
    padding: 6px 9px;
    background: #053876b8;
    color: #fff;
    font-size: 14px;
    white-space: nowrap;
    box-shadow: 0 3px 11px #001f4b4d;
    transition: .2s
}

.county-buttons button:hover,
.county-buttons button.active {
    border-color: #fff;
    background: #fff;
    color: #0072df;
    box-shadow: 0 0 0 4px #a9e7ff4d, 0 5px 14px #001d4d5c
}

.map-legend {
    position: absolute;
    z-index: 3;
    left: 24px;
    bottom: 19px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #dbf4ff;
    font-size: 14px
}

.map-legend>span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #7cd9ff;
    box-shadow: 0 0 0 4px #7cd9ff30
}

.map-legend small {
    margin-left: 8px;
    color: #addcf7;
    font-size: 14px
}

.county-select-label {
    display: none
}

/* Resources and footer */
.resource-section {
    padding: 85px 0 92px;
    background: linear-gradient(180deg, #fff, #f7fbff)
}

.resource-heading {
    justify-content: center;
    margin-bottom: 40px;
    text-align: center
}

.resource-heading .eyebrow:before {
    display: none
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px
}

.resource-card {
    position: relative;
    overflow: hidden;
    padding: 32px 28px 29px;
    border: 1px solid #dceaf8;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 11px 28px #1a56890d;
    transition: .25s
}

.resource-card:after {
    content: "";
    position: absolute;
    top: -55px;
    right: -38px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: #ebf6ff
}

.resource-card>* {
    position: relative;
    z-index: 1
}

.resource-card:hover {
    transform: translateY(-5px);
    border-color: #a9d6ff;
    box-shadow: 0 20px 35px #18548818
}

.resource-icon {
    display: grid;
    place-items: center;
    width: 50px;
    height: 50px;
    margin-bottom: 23px;
    border-radius: 15px;
    background: #eaf5ff;
    color: #087eef
}

.resource-icon svg {
    width: 28px;
    height: 28px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round
}

.resource-card h3 {
    margin: 0 0 11px;
    font-size: 20px
}

.resource-card p {
    margin: 0 0 25px;
    color: #718aa4;
    font-size: 14px
}

.resource-numbers {
    display: flex;
    gap: 34px;
    padding-top: 20px;
    border-top: 1px solid #e9f1f8
}

.resource-numbers span {
    color: #6c879f;
    font-size: 14px
}

.resource-numbers b {
    display: block;
    margin-bottom: 6px;
    color: #2d668f;
    font-family: Arial, sans-serif;
    font-size: 24px
}

.resource-arrow {
    position: absolute;
    right: 27px;
    top: 29px;
    color: #4f99d5;
    font-size: 21px
}

.mint .resource-icon {
    background: #e8faf5;
    color: #22ac91
}

.mint:after {
    background: #edf9f5
}

.violet .resource-icon {
    background: #f0effd;
    color: #8874d5
}

.violet:after {
    background: #f5f3ff
}

footer {
    position: relative;
    overflow: hidden;
    padding: 61px 0 0;
    color: #d9efff;
    background: linear-gradient(125deg, #07458a, #0865b7 51%, #147cc6)
}

footer:before {
    content: "";
    position: absolute;
    right: -130px;
    bottom: -300px;
    width: 620px;
    height: 620px;
    border: 1px solid #ffffff22;
    border-radius: 50%;
    box-shadow: 0 0 0 80px #ffffff08, 0 0 0 160px #ffffff05
}

.footer-top {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1.4fr .9fr;
    gap: 55px;
    padding-bottom: 42px
}

.footer-brand h2 {
    margin: 0 0 21px;
    color: #fff;
    font-size: 26px;
    letter-spacing: 2px
}

.footer-brand p {
    margin: 0 0 18px;
    font-size: 14px;
    line-height: 2;
    color: #ddf2ff
}

.footer-brand a {
    font-size: 14px
}

.footer-brand strong {
    margin-left: 10px;
    color: #fff;
    font-weight: 500
}

.footer-links h3 {
    margin: 5px 0 22px;
    color: #fff;
    font-size: 17px
}

.footer-links>div {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px 24px
}

.footer-links a {
    font-size: 14px;
    color: #d9f1ff
}

.footer-links a:hover {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 4px
}

.footer-follow {
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    gap: 26px
}

.footer-follow>div:first-child {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 7px;
    color: #e8f6ff;
    font-size: 14px;
    text-align: center
}

.footer-follow>div:first-child img {
    width: 91px;
    height: 91px;
    padding: 4px;
    border-radius: 9px;
    background: #fff
}

.footer-tools {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding-top: 4px
}

.footer-tools img {
    display: block;
    max-width: 98px;
    max-height: 52px;
    object-fit: contain
}

.footer-bottom {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: center;
    gap: 32px;
    padding: 21px 0;
    border-top: 1px solid #ffffff33;
    color: #d5efff;
    font-size: 14px
}

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

.back-top {
    position: fixed;
    z-index: 40;
    right: 24px;
    bottom: 24px;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: #fff;
    color: #007bff;
    font-size: 21px;
    box-shadow: 0 10px 24px #05366c2d;
    opacity: 0;
    pointer-events: none;
    transition: .2s
}

.back-top.show {
    opacity: 1;
    pointer-events: auto
}

.back-top:hover {
    transform: translateY(-3px);
    background: #007bff;
    color: #fff
}

@keyframes softFloat {
    50% {
        transform: translateY(-9px);
        opacity: .72
    }
}

@media(max-width:1100px) {
    .wrap {
        width: calc(100% - 48px)
    }

    .brand-motto {
        font-size: 14px
    }

    .nav-item>a,
    .nav-item>button {
        padding-inline: 9px;
        font-size: 14px
    }

    .hero {
        min-height: 620px
    }

    .hero-art {
        left: 48%;
        width: 52vw
    }

    .hero h1 {
        font-size: 39px
    }

    .carousel-controls {
        width: calc(100% - 48px)
    }

    .topic-thumb {
        flex-basis: 112px
    }

    .all-topics {
        font-size: 14px
    }

    .data-layout {
        gap: 35px
    }

    .map-area {
        min-height: 470px
    }

    .footer-top {
        gap: 32px
    }

    .footer-follow {
        gap: 16px
    }

    .resource-card {
        padding-inline: 21px
    }

    .resource-numbers {
        gap: 20px
    }
}

@media(max-width:760px) {
    .wrap {
        width: calc(100% - 32px)
    }

    .utility-row {
        height: auto;
        min-height: 44px;
        padding: 8px 0;
        align-items: flex-start
    }

    .utility-row>span {
        display: none
    }

    .utility-actions {
        width: 100%;
        justify-content: space-between;
        gap: 11px
    }

    .favorite-button,
    .wechat-trigger,
    .system-date {
        font-size: 14px
    }

    .system-date {
        padding-left: 11px
    }

    .favorite-button.hint-visible:after {
        right: auto;
        left: 0;
        top: 29px
    }

    .wechat-popover {
        right: -25px;
        top: 30px
    }

    .brand-row {
        position: sticky;
        top: 0;
        z-index: 35;
        height: 78px;
        gap: 10px;
        background: linear-gradient(100deg, #e9f6ff, #fff)
    }

    .brand-row:after {
        display: none
    }

    .brand img {
        width: 178px
    }

    .brand-motto {
        display: none
    }

    .login {
        padding: 10px 12px;
        font-size: 14px
    }

    .login span {
        display: none
    }

    .menu-toggle {
        display: block;
        width: 38px;
        height: 38px;
        border: 0;
        border-radius: 8px;
        background: #e8f5ff;
        color: #007bff;
        font-size: 22px
    }

    .navigation {
        position: relative;
        top: auto;
        display: none;
        box-shadow: none
    }

    .navigation.mobile-open {
        display: block
    }

    .nav-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        padding: 7px 0 12px
    }

    .nav-item>a,
    .nav-item>button {
        width: 100%;
        padding: 13px 9px;
        text-align: left;
        font-size: 14px
    }

    .nav-item:first-child>a:after,
    .nav-item>button:before {
        display: none
    }

    .dropdown {
        position: static;
        display: none;
        min-width: 0;
        transform: none !important;
        box-shadow: none;
        border: 0;
        border-radius: 5px;
        background: #f1f8ff;
        opacity: 1;
        visibility: visible
    }

    .nav-item.open .dropdown {
        display: block
    }

    .dropdown a {
        padding: 10px;
        font-size: 14px;
        white-space: normal
    }

    .hero {
        min-height: 785px
    }

    .hero-content {
        padding-top: 43px
    }

    .topic-label {
        font-size: 14px
    }

    .hero h1 {
        margin-top: 15px;
        font-size: 32px;
        line-height: 1.5
    }

    .hero-content>p {
        font-size: 14px;
        max-width: 295px;
        margin-bottom: 19px
    }

    .hero-link {
        gap: 30px;
        padding: 12px 18px;
        font-size: 14px
    }

    .hero-orbit {
        width: 315px;
        height: 315px;
        right: 8%;
        top: 359px
    }

    .hero-art {
        left: 3%;
        top: 383px;
        width: 94%;
        height: 318px
    }

    .spark-one {
        left: 8%;
        top: 397px;
        font-size: 20px
    }

    .spark-two {
        right: 8%;
        top: 560px;
        font-size: 16px
    }

    .hero-bottom-label {
        display: none
    }

    .carousel-controls {
        bottom: 47px;
        left: 16px;
        right: 0;
        transform: none;
        width: calc(100% - 16px);
        gap: 8px
    }

    .arrow {
        width: 34px;
        height: 34px;
        font-size: 16px
    }

    .topic-thumbs {
        gap: 7px
    }

    .topic-thumb {
        flex-basis: 101px;
        height: 52px
    }

    .topic-thumb span {
        font-size: 14px;
        padding: 8px;
        width: 61px
    }

    .all-topics {
        display: none
    }

    .services {
        margin-top: -38px
    }

    .services>.wrap {
        padding: 22px 15px 20px;
        border-radius: 13px
    }

    .compact {
        margin-bottom: 20px
    }

    .compact h2 {
        font-size: 18px
    }

    .section-note {
        display: none
    }

    .service-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px 0
    }

    .service-card {
        padding: 2px 4px 8px
    }

    .service-card:nth-child(3),
    .service-card:last-child {
        border-right: 0
    }

    .service-card:nth-child(4) {
        grid-column: 1/2
    }

    .service-icon {
        width: 53px;
        height: 53px;
        margin-bottom: 12px;
        border-radius: 16px
    }

    .service-icon svg {
        width: 27px;
        height: 27px
    }

    .service-card h3 {
        font-size: 15px;
        margin-bottom: 5px
    }

    .service-card p {
        font-size: 14px;
        line-height: 1.35
    }

    .service-arrow {
        display: none
    }

    .section-heading {
        margin-bottom: 28px;
        gap: 15px
    }

    h2 {
        font-size: 26px
    }

    .eyebrow {
        font-size: 14px
    }

    .more {
        gap: 8px;
        font-size: 14px
    }

    .more span {
        width: 29px;
        height: 29px
    }

    .news-section {
        padding: 60px 0
    }

    .news-layout {
        grid-template-columns: 1fr;
        gap: 28px
    }

    .news-feature-image {
        height: 192px
    }

    .news-feature-body {
        padding: 22px
    }

    .news-feature-body h3 {
        font-size: 18px
    }

    .news-panel-head {
        height: 47px;
        font-size: 18px
    }

    .news-panel li a {
        gap: 8px;
        min-height: 58px;
        font-size: 14px
    }

    .news-type {
        flex-basis: 68px;
        font-size: 14px
    }

    .news-panel time {
        display: none
    }

    .news-row-arrow {
        font-size: 16px
    }

    .news-all-links {
        justify-content: flex-start;
        padding-top: 18px
    }

    .data-section {
        padding: 59px 0
    }

    .data-section .section-heading {
        align-items: flex-start
    }

    .data-layout {
        grid-template-columns: 1fr;
        gap: 29px
    }

    .data-intro {
        font-size: 14px
    }

    .stat {
        padding: 21px 16px 18px
    }

    .stat strong {
        font-size: 28px
    }

    .map-area {
        min-height: 440px;
        border-radius: 14px
    }

    .map-image {
        left: 1%;
        width: 98%;
        top: 12%;
        height: 69%
    }

    .map-hud {
        left: 16px;
        top: 17px
    }

    .map-hud span {
        font-size: 14px
    }

    .map-hud strong {
        font-size: 16px
    }

    .county-buttons {
        display: none
    }

    .map-legend {
        left: 16px;
        bottom: 72px;
        font-size: 14px
    }

    .map-legend small {
        display: none
    }

    .county-select-label {
        position: absolute;
        z-index: 5;
        right: 16px;
        bottom: 17px;
        left: 16px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        color: #dff4ff;
        font-size: 14px
    }

    .county-select-label select {
        width: 168px;
        padding: 9px 28px 9px 11px;
        border: 1px solid #9edcff;
        background: #07478cbf;
        color: #fff;
        border-radius: 6px;
        font-size: 14px
    }

    .resource-section {
        padding: 62px 0
    }

    .resource-heading {
        margin-bottom: 29px
    }

    .resource-grid {
        grid-template-columns: 1fr;
        gap: 16px
    }

    .resource-card {
        display: flex;
        gap: 18px;
        padding: 24px 20px
    }

    .resource-icon {
        flex: 0 0 auto;
        width: 47px;
        height: 47px;
        margin: 0
    }

    .resource-card h3 {
        font-size: 18px
    }

    .resource-card p {
        font-size: 14px;
        margin-bottom: 18px
    }

    .resource-numbers {
        gap: 28px;
        padding-top: 16px
    }

    .resource-numbers span {
        font-size: 14px
    }

    .resource-numbers b {
        font-size: 21px
    }

    .resource-arrow {
        right: 18px;
        top: 20px
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 34px;
        padding-bottom: 34px
    }

    .footer-brand h2 {
        font-size: 24px
    }

    .footer-links h3 {
        font-size: 17px
    }

    .footer-links>div {
        gap: 14px 20px
    }

    .footer-follow {
        justify-content: flex-start
    }

    .footer-bottom {
        flex-wrap: wrap;
        gap: 10px 20px;
        text-align: center;
        font-size: 14px
    }

    .back-top {
        right: 16px;
        bottom: 16px;
        width: 42px;
        height: 42px
    }
}

@media(max-width:360px) {
    .brand img {
        width: 156px
    }

    .login {
        padding-inline: 9px
    }

    .utility-actions {
        gap: 8px
    }

    .system-date {
        font-size: 14px
    }

    .hero {
        min-height: 755px
    }

    .hero h1 {
        font-size: 29px
    }

    .hero-art {
        top: 380px;
        height: 295px
    }

    .hero-orbit {
        top: 365px
    }

    .topic-thumb {
        flex-basis: 96px
    }

    .stat strong {
        font-size: 25px
    }

    .resource-card {
        gap: 13px;
        padding: 21px 15px
    }

    .resource-numbers {
        gap: 17px
    }

    .footer-links>div {
        grid-template-columns: 1fr
    }

    .footer-follow {
        gap: 14px
    }
}

.county-select-label option {
    font-size: 14px
}

@media(max-width:760px) {

    .brand-row:before,
    .brand-row:after {
        display: none
    }
}

@media(prefers-reduced-motion:reduce) {
    html {
        scroll-behavior: auto
    }

    *,
    *:before,
    *:after {
        animation: none !important;
        transition: none !important
    }
}

/* Current homepage refinements — consolidated from the former v4 layer. */
.utility {
    position: relative;
    z-index: 51;
    color: #e3f4ff;
    border-bottom: 1px solid #ffffff30;
    background: linear-gradient(100deg, #073f83 0%, #0757a7 55%, #0a70bc 100%)
}

.favorite-button,
.wechat-trigger,
.system-date {
    color: #e3f4ff
}

.favorite-button,
.wechat-trigger {
    white-space: nowrap
}

.compact-label {
    display: none
}

.favorite-button>span,
.wechat-trigger>span {
    color: #a9eaff
}

.favorite-button:hover,
.wechat-trigger:hover {
    color: #fff
}

.system-date {
    border-left-color: #ffffff43
}

.utility .login {
    margin: 0;
    padding: 5px 14px;
    border: 1px solid #ffffff6b;
    border-radius: 20px;
    background: #ffffff1c;
    box-shadow: none;
    color: #fff;
    font-size: 14px;
    white-space: nowrap
}

.utility .login:hover {
    background: #fff;
    color: #006bd8;
    transform: translateY(-1px);
    box-shadow: none
}

.utility .login span {
    margin-left: 8px
}

.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: linear-gradient(100deg, #06458d, #0861b7 65%, #0b75c6);
    box-shadow: 0 8px 24px #003e9136, inset 0 -1px #ffffff28
}

.header-row {
    height: 78px;
    display: flex;
    align-items: center;
    gap: 34px
}

.brand {
    flex: 0 0 auto
}

.brand img {
    width: 216px
}

.navigation {
    position: static;
    flex: 1;
    min-width: 0;
    background: transparent;
    box-shadow: none
}

.nav-grid {
    align-items: stretch;
    gap: 2px
}

.nav-item>a,
.nav-item>button {
    padding: 24px 7px;
    font-size: 14px
}

.nav-item>button:hover,
.nav-item>a:hover {
    color: #fff
}

.nav-item>button:after {
    margin-left: 4px
}

.dropdown {
    border-radius: 0 0 12px 12px
}

.nav-item:nth-last-child(2) .dropdown {
    left: auto;
    right: 0;
    transform: translateY(8px)
}

.nav-item:nth-last-child(2):hover .dropdown,
.nav-item:nth-last-child(2):focus-within .dropdown,
.nav-item:nth-last-child(2).open .dropdown {
    transform: translateY(0)
}

.mobile-login {
    display: none
}

.hero {
    --hero-start: #0a4a8f;
    --hero-mid: #0b66b2;
    --hero-end: #2383b8;
    --rail-start: #073d79;
    --rail-mid: #0a5196;
    --rail-end: #135f9b;
    min-height: 0;
    overflow: hidden;
    background: linear-gradient(115deg, var(--hero-start) 0%, var(--hero-mid) 53%, var(--hero-end) 100%);
    transition: background-color .45s ease
}

.hero[data-theme="science"] {
    --hero-start: #075467;
    --hero-mid: #087386;
    --hero-end: #1b8d91;
    --rail-start: #064755;
    --rail-mid: #075f6a;
    --rail-end: #0e716f
}

.hero[data-theme="growth"] {
    --hero-start: #343d86;
    --hero-mid: #4d5ca9;
    --hero-end: #6975bd;
    --rail-start: #2b3573;
    --rail-mid: #3d498e;
    --rail-end: #4c5799
}

.hero[data-theme="research"] {
    --hero-start: #293f72;
    --hero-mid: #465b96;
    --hero-end: #6675ad;
    --rail-start: #23345f;
    --rail-mid: #394a79;
    --rail-end: #4d5b84
}

.hero[data-theme="resources"] {
    --hero-start: #0d5660;
    --hero-mid: #156e76;
    --hero-end: #378a88;
    --rail-start: #0a454d;
    --rail-mid: #105b61;
    --rail-end: #1d6d69
}

.hero:after {
    display: none
}

.hero-stage {
    position: relative;
    isolation: isolate;
    min-height: 488px;
    overflow: hidden
}

.hero-stage:before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(circle at 70% 45%, #c8efff22, transparent 28%), linear-gradient(135deg, transparent 55%, #ffffff0c 55.1%, transparent 58%)
}

.hero-orbit {
    top: -22px;
    right: max(5%, calc((100% - 1240px)/2 + 40px))
}

.hero-art {
    top: 0;
    left: calc(50% + 5px);
    width: min(670px, 50vw);
    height: 475px
}

.hero-content {
    min-height: 488px;
    padding-top: 69px;
    padding-bottom: 65px
}

.hero h1 {
    font-size: 44px
}

.hero-rail {
    position: relative;
    z-index: 6;
    padding: 16px 0 24px;
    border-top: 1px solid #9cdeff45;
    background: linear-gradient(95deg, var(--rail-start), var(--rail-mid) 57%, var(--rail-end));
    box-shadow: inset 0 14px 28px #003c8a16
}

.topic-rail-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 13px
}

.topic-rail-heading {
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 0
}

.topic-rail-heading>span {
    flex: 0 0 auto;
    color: #bde9ff;
    font-size: 14px;
    letter-spacing: 1px
}

.topic-rail-heading>strong {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap
}

.carousel-controls {
    position: static;
    left: auto;
    bottom: auto;
    transform: none;
    width: auto;
    flex: 0 0 auto;
    gap: 8px
}

.arrow {
    width: 35px;
    height: 35px;
    border-color: #ffffff61
}

.arrow:hover {
    transform: translateY(-2px)
}

.all-topics {
    margin-left: 8px;
    padding: 7px 14px;
    border: 1px solid #ffffff66;
    border-radius: 18px;
    background: #ffffff16
}

.all-topics:hover {
    background: #fff;
    color: #006bd8
}

.topic-thumbs {
    display: flex;
    gap: 10px;
    min-width: 0;
    width: 100%;
    padding: 4px 0 9px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    scroll-padding-inline: 4px;
    scrollbar-width: thin;
    scrollbar-color: #a9e2ff66 transparent
}

.topic-thumbs::-webkit-scrollbar {
    display: block;
    height: 5px
}

.topic-thumbs::-webkit-scrollbar-thumb {
    border-radius: 5px;
    background: #a9e2ff66
}

.topic-thumb {
    position: relative;
    display: flex;
    align-items: center;
    flex: 0 0 calc((100% - 40px)/5);
    height: 78px;
    padding: 9px 13px;
    border: 1px solid #c7ecff5c;
    border-radius: 11px;
    background: linear-gradient(115deg, var(--thumb-start), var(--thumb-mid) 58%, var(--thumb-end));
    scroll-snap-align: start;
    transition: border-color .25s, background .25s, transform .25s, box-shadow .25s
}

.topic-thumb[data-theme="science"] {
    --thumb-start: #075467;
    --thumb-mid: #087386;
    --thumb-end: #1b8d91
}

.topic-thumb[data-theme="growth"] {
    --thumb-start: #343d86;
    --thumb-mid: #4d5ca9;
    --thumb-end: #6975bd
}

.topic-thumb[data-theme="research"] {
    --thumb-start: #293f72;
    --thumb-mid: #465b96;
    --thumb-end: #6675ad
}

.topic-thumb[data-theme="resources"] {
    --thumb-start: #0d5660;
    --thumb-mid: #156e76;
    --thumb-end: #378a88
}

.topic-thumb:after {
    background: linear-gradient(90deg, #061d3b80 0%, #061d3b38 58%, transparent 100%)
}

.topic-thumb img {
    right: 0;
    bottom: -5px;
    width: 86px;
    height: 86px;
    opacity: .85;
    transition: transform .3s, opacity .3s
}

.topic-thumb span {
    position: relative;
    z-index: 1;
    display: -webkit-box;
    width: calc(100% - 72px);
    padding: 0;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.42;
    overflow-wrap: anywhere;
    text-shadow: 0 1px 5px #001d4766
}

.topic-thumb:hover,
.topic-thumb.active {
    border-color: #fff;
    background: linear-gradient(115deg, var(--thumb-start), var(--thumb-mid) 58%, var(--thumb-end));
    box-shadow: 0 5px 18px #001c5b38;
    transform: translateY(-2px);
    filter: brightness(1.08)
}

.topic-thumb:hover img,
.topic-thumb.active img {
    transform: scale(1.08);
    opacity: 1
}

.topic-thumb.active:before {
    left: 13px;
    top: auto;
    bottom: 7px;
    width: 29px;
    height: 2px
}

.hero-stage.slide-changing .hero-art {
    animation: artEnter .55s ease both
}

.hero-stage.slide-changing .hero-content h1,
.hero-stage.slide-changing .hero-content>p {
    animation: copyEnter .42s ease both
}

@keyframes artEnter {
    from {
        opacity: .55;
        transform: translateX(18px) scale(.97)
    }

    to {
        opacity: 1;
        transform: none
    }
}

@keyframes copyEnter {
    from {
        opacity: .55;
        transform: translateY(9px)
    }

    to {
        opacity: 1;
        transform: none
    }
}

.services {
    margin-top: -15px
}

.data-section {
    background: linear-gradient(125deg, #07376d 0%, #0a54a3 54%, #0b70c0 100%)
}

.data-section:before {
    opacity: .6;
    background: radial-gradient(circle at 80% 53%, #1aaeff56, transparent 35%), radial-gradient(circle at 15% 15%, #48bfff32, transparent 25%)
}

.data-layout {
    position: relative;
    display: block;
    min-height: 560px
}

.map-area {
    min-height: 560px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none
}

.map-area:after {
    content: "";
    position: absolute;
    z-index: 1;
    left: 36%;
    right: 0;
    top: -70px;
    height: 70px;
    pointer-events: none;
    background: linear-gradient(180deg, transparent, #8de9ff15, transparent);
    animation: mapSweep 8s linear infinite
}

@keyframes mapSweep {
    to {
        transform: translateY(630px)
    }
}

.map-grid {
    opacity: .85;
    background-image: linear-gradient(#9de1ff15 1px, transparent 1px), linear-gradient(90deg, #9de1ff15 1px, transparent 1px), radial-gradient(circle, #9ee2ff30 1px, transparent 1.5px);
    background-size: 32px 32px, 32px 32px, 32px 32px
}

.map-scene {
    position: absolute;
    z-index: 2;
    inset: 0 0 0 36%
}

.map-scene:before {
    content: "";
    position: absolute;
    inset: 8% 12%;
    border: 1px solid #b4eaff2c;
    border-radius: 50%;
    box-shadow: 0 0 0 38px #b4eaff08, 0 0 0 76px #b4eaff05
}

.map-image {
    z-index: 1;
    left: 1%;
    top: 3%;
    width: 96%;
    height: 94%;
    opacity: .9;
    filter: brightness(0) invert(1) sepia(.3) saturate(1.8) hue-rotate(165deg) drop-shadow(0 0 27px #9deaff91);
    transition: opacity .4s, filter .4s
}

.map-area.has-selection .map-image {
    opacity: 1;
    filter: brightness(0) invert(1) sepia(.3) saturate(1.8) hue-rotate(165deg) drop-shadow(0 0 37px #adf1ffb8)
}

.data-overview {
    position: absolute;
    z-index: 6;
    left: 26px;
    top: 83px;
    width: 36%;
    padding: 23px;
    border: 0;
    border-radius: 18px;
    backdrop-filter: blur(16px)
}

.stat-grid {
    gap: 11px
}

.stat {
    padding: 17px 15px 15px;
    background: #ffffff13;
    transition: transform .25s, background .25s, border-color .25s
}

.stat:hover {
    transform: translateY(-3px);
    background: #ffffff25;
    border-color: #b6eaffb5
}

.stat strong {
    margin-bottom: 4px;
    font-size: 29px
}

.stat-icon {
    right: 13px;
    bottom: 15px
}

.data-footnote {
    margin-top: 16px;
    line-height: 1.7
}

.map-hud {
    left: 25px;
    right: auto;
    top: 22px;
    align-items: flex-start;
    padding: 0 0 0 12px;
    border-left: 3px solid #86d9ff;
    border-right: 0;
    text-align: left
}

.map-selected-change {
    animation: detailPop .36s ease both
}

@keyframes detailPop {
    from {
        opacity: .5;
        transform: translateY(5px)
    }

    to {
        opacity: 1;
        transform: none
    }
}

.county-buttons button {
    border-radius: 7px;
    background: #063773d9;
    backdrop-filter: blur(4px)
}

.county-buttons button:hover {
    transform: translate(-50%, -55%) scale(1.04)
}

.county-buttons button.active {
    animation: countyPulse 1.8s ease-in-out infinite
}

@keyframes countyPulse {
    50% {
        box-shadow: 0 0 0 8px #a9e7ff29, 0 5px 18px #001d4d73
    }
}

.map-legend {
    left: auto;
    right: 24px;
    bottom: 19px
}

.footer-top {
    grid-template-columns: .9fr 1.3fr 1.1fr
}

.footer-follow {
    align-items: flex-start;
    gap: 12px;
    flex-wrap: nowrap
}

.footer-follow>div:first-child {
    flex: 0 0 90px
}

.footer-follow>div:first-child img {
    width: 82px;
    height: 82px
}

.footer-follow>div:first-child span {
    max-width: 90px
}

.footer-tools {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    padding-top: 15px
}

.footer-tools img {
    max-width: 80px;
    max-height: 52px
}

@media(max-width:1100px) {
    .header-row {
        gap: 20px
    }

    .brand img {
        width: 192px
    }

    .nav-item>a,
    .nav-item>button {
        padding-inline: 5px
    }

    .hero-art {
        left: 50%;
        width: 50vw
    }

    .topic-thumb {
        flex-basis: calc((100% - 30px)/4)
    }

    .data-overview {
        width: 38%;
        padding: 18px
    }

    .stat strong {
        font-size: 26px
    }
}

@media(max-width:980px) {
    .utility-row>span {
        display: none
    }

    .utility-actions {
        width: 100%;
        justify-content: flex-end
    }

    .utility .login {
        display: none
    }

    .header-row {
        height: 70px;
        justify-content: space-between
    }

    .menu-toggle {
        display: grid;
        place-items: center;
        margin-left: auto;
        width: 42px;
        height: 42px;
        border: 1px solid #ffffff70;
        border-radius: 9px;
        background: #ffffff20;
        color: #fff;
        font-size: 23px
    }

    .navigation {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        display: none;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
        background: linear-gradient(135deg, #07478f, #0964b8);
        box-shadow: 0 16px 28px #002c70a3
    }

    .navigation.mobile-open {
        display: block
    }

    .nav-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 2px 12px;
        width: min(100% - 48px, 760px);
        margin: auto;
        padding: 12px 0 19px
    }

    .nav-item>a,
    .nav-item>button {
        width: 100%;
        padding: 12px 10px;
        text-align: left;
        font-size: 15px
    }

    .nav-item:first-child>a:after,
    .nav-item>button:before {
        display: none
    }

    .dropdown {
        position: static;
        display: none;
        min-width: 0;
        transform: none !important;
        border: 0;
        border-radius: 7px;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        background: #f0f8ff
    }

    .nav-item.open .dropdown {
        display: block
    }

    .dropdown a {
        white-space: normal
    }

    .mobile-login {
        display: flex;
        grid-column: 1/-1;
        justify-content: space-between;
        padding: 11px 13px;
        border: 1px solid #ffffff69;
        border-radius: 7px;
        color: #fff;
        font-size: 15px;
        font-weight: 600
    }

    .data-overview {
        width: 41%
    }

    .map-scene {
        left: 39%
    }
}

@media(max-width:760px) {
    .utility-row {
        min-height: 43px;
        padding: 7px 0
    }

    .utility-actions {
        justify-content: space-between;
        gap: 8px
    }

    .favorite-button,
    .wechat-trigger,
    .system-date {
        font-size: 14px
    }

    .system-date {
        padding-left: 8px
    }

    .header-row {
        height: 68px
    }

    .brand img {
        width: 176px
    }

    .navigation {
        max-height: calc(100vh - 68px)
    }

    .nav-grid {
        width: calc(100% - 32px)
    }

    .hero {
        min-height: 0
    }

    .hero-stage {
        display: flex;
        flex-direction: column;
        min-height: 0
    }

    .hero-content {
        order: 1;
        min-height: 0;
        padding-top: 35px;
        padding-bottom: 0
    }

    .hero h1 {
        max-width: 490px;
        margin-bottom: 13px;
        font-size: clamp(27px, 7.5vw, 34px);
        line-height: 1.42
    }

    .hero-content>p {
        max-width: 440px;
        margin-bottom: 16px;
        line-height: 1.6
    }

    .hero-art {
        position: relative;
        order: 2;
        align-self: center;
        left: auto;
        top: auto;
        width: min(100%, 520px);
        height: 310px;
        margin-top: 3px
    }

    .hero-orbit {
        top: 300px;
        right: 5%;
        width: 300px;
        height: 300px
    }

    .spark-one {
        top: 320px
    }

    .spark-two {
        top: 525px
    }

    .topic-rail-top {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
        margin-bottom: 8px
    }

    .topic-rail-heading {
        display: block
    }

    .topic-rail-heading>span {
        display: block;
        margin-bottom: 2px
    }

    .topic-rail-heading>strong {
        display: block;
        font-size: 15px;
        white-space: normal
    }

    .carousel-controls {
        justify-content: flex-start;
        gap: 8px
    }

    .all-topics {
        display: flex;
        margin-left: auto
    }

    .topic-thumbs {
        gap: 9px
    }

    .topic-thumb {
        flex: 0 0 212px;
        height: 76px
    }

    .topic-thumb span {
        width: calc(100% - 66px)
    }

    .services {
        margin-top: 0;
        padding-top: 25px
    }

    .data-layout {
        display: flex;
        flex-direction: column-reverse;
        align-items: stretch;
        gap: 20px;
        min-height: 0
    }

    .data-overview {
        position: relative;
        inset: auto;
        width: 100%;
        padding: 17px
    }

    .map-area {
        min-height: 425px;
        border-radius: 0
    }

    .map-area:after {
        left: 0
    }

    .map-scene {
        inset: 32px 0 58px
    }

    .map-scene:before {
        inset: 9% 10%
    }

    .map-image {
        left: 1%;
        top: 0;
        width: 98%;
        height: 100%
    }

    .map-hud {
        left: 17px;
        right: auto;
        top: 16px;
        align-items: flex-start;
        padding: 0 0 0 11px;
        border-left: 3px solid #86d9ff;
        border-right: 0;
        text-align: left
    }

    .map-legend {
        left: 17px;
        right: auto;
        bottom: 71px
    }

    .county-buttons {
        display: none
    }

    .back-top {
        bottom: 72px
    }

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

    .footer-follow {
        justify-content: flex-start
    }
}

@media(max-width:360px) {
    .full-label {
        display: none
    }

    .compact-label {
        display: inline
    }

    .brand img {
        width: 157px
    }

    .utility-actions {
        gap: 5px
    }

    .system-date {
        padding-left: 5px
    }

    .hero-art {
        height: 260px
    }

    .topic-thumb {
        flex-basis: 202px
    }

    .all-topics {
        padding-inline: 9px
    }

    .map-area {
        min-height: 390px
    }
}

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

    .hero-stage.slide-changing .hero-art,
    .hero-stage.slide-changing .hero-content h1,
    .hero-stage.slide-changing .hero-content>p,
    .map-selected-change,
    .county-buttons button.active,
    .map-area:after {
        animation: none !important
    }

    .topic-thumbs {
        scroll-behavior: auto
    }
}