:root {
            --bg: #fff;
            --bg1: #FAFAFA;
            --fg: #0F172A;
            --muted: #F1F5F9;
            --muted-fg: #64748B;
            --accent: #0052FF;
            --accent-sec: #4D7CFF;
            --accent-fg: #FFFFFF;
            --border: #E2E8F0;
            --card: #FFFFFF;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
            --shadow-lg: 0 10px 15px rgba(0,0,0,0.08);
            --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
            --shadow-accent: 0 4px 14px rgba(0,82,255,0.25);
             --gradient-text: linear-gradient(135deg, #0052FF, #4D7CFF, #00C6FF);
             --gradient-red: linear-gradient(135deg, #0052FF, #cda700, #ff0000);
    --sticky-bg:  rgb(245 248 255 / 85%);
    --font-en: "en", "Microsoft YaHei UI", sans-serif;
        }
@font-face {
  font-family: 'en';
  font-style: normal;
  font-weight: 400;
  src: url(../fonts/en.woff2) format('woff2');
  unicode-range: U+0030-0039, U+0041-005A, U+0061-007A;}
        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

        html { scroll-behavior: smooth; font-size: 16px; }

        body {
            font-family:"Microsoft YaHei UI", sans-serif;
            background: var(--bg);
            color: var(--fg);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        h1, h2, h3, h4 {
            font-family:  var(--font-en);
            font-weight: 700;
            line-height: 1.2;
        }
        section{
            width: 100%;
        }

        .container {
           width: min(1400px, 90%, 100% - 32px);
            margin-inline: auto;
        }
        .typed-cursor{
            color: #cbdbf3;
        }

/* ============================================
   Header - 顶部导航栏
   ============================================ */
.header {
    position: relative;
    background-image: url('/assets/img/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    --header-height: 72px;
    --header-height-mobile: 56px;
    padding-top: var(--header-height);
    margin-top: calc(-1 * var(--header-height));
}

.header__nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: transparent;
    transition: background-color 0.3s ease, backdrop-filter 0.3s ease;
    --header-height: 72px;
    --header-height-mobile: 56px;
}

.header__nav--sticky {
    background-color: var(--sticky-bg);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    box-shadow: var(--shadow-accent);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    z-index: 10;
    min-width: 260px;
}

.header__logo-img {
    height: 36px;
    width: auto;
}

.header__logo-text {
    font-family:  var(--font-en);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--fg);
    white-space: nowrap;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.header__links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.header__link {
    color: var(--fg);
    font-family:  var(--font-en);
    font-size: 1rem;
    font-weight: 300;
    text-decoration: none;
    transition: color 0.2s ease;
    white-space: nowrap;
}
.header__link .a,.header__link:hover .b{
    display: block;
}
.header__link:hover .a,.header__link .b{
    display: none;
}

.header__link:hover {
    color: var(--accent);
}

.header__cta-area {
    min-width: 260px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
}

.header__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 10;
    padding: 0;
}

.header__hamburger-line {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--fg);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.header__hamburger--active .header__hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__hamburger--active .header__hamburger-line:nth-child(2) {
    opacity: 0;
}

.header__hamburger--active .header__hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ============================================
   Hero - 展示区域
   ============================================ */
.hero {
    padding:80px 0;
    text-align: center;
}

.hero__title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--fg);
    margin-bottom: 16px;
    line-height: 1.2;
}

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

.hero__subtitle {
    font-size: 4rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--fg);
}

.hero__subtitle-typed {
    background: var(--gradient-red);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    font-family:  var(--font-en);
}

.hero__desc {
    font-size: 1.3rem;
    color: var(--muted-fg);
    line-height: 1.5;
    margin-bottom: 32px;
    max-width: 680px;
    font-weight: 200;
    margin-left: auto;
    margin-right: auto;
}

.hero__cta {
    margin-bottom: 48px;
    height: 54px;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    background: linear-gradient(96deg, #0d01f1 -4.72%, #ff5454 96.59%);
    color: var(--accent-fg);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-accent);
    transition: transform 0.2s ease, opacity 0.25s ease, box-shadow 0.2s ease;
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 82, 255, 0.35);
}

/* ============================================
   Hero - 产品展示图叠加布局
   ============================================ */
.hero__showcase {
    position: relative;
    margin-top: 48px;
    margin-bottom: 48px;
}

.hero__showcase-bg {
    width: 85%;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    display: block;
    margin-inline: auto;
}

.hero__showcase-ai {
    position: absolute;
    width: 70%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    pointer-events: none;
    bottom:-60px;
}

/* ============================================
   Hero - 客户Logo墙
   ============================================ */
.hero__clients {
    margin-top: 48px;
}

.hero__clients-label {
    font-size: 0.875rem;
    color: var(--muted-fg);
    margin-bottom: 16px;
}

.hero__clients-track {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.hero__client-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 56px;
    padding: 8px 20px;
    background: var(--card);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.hero__client-item img {
    height: 32px;
    width: auto;
    object-fit: contain;
}

/* ============================================
   按钮迁移过渡
   ============================================ */
.btn-cta--hero,
.btn-cta--nav {
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.btn-cta--nav {
    opacity: 0;
    transform: translateY(-10px);
    padding: 8px 20px;
    font-size: 0.875rem;
}

/* ============================================
   响应式 - 中屏适配
   ============================================ */
@media (max-width: 1199px) {
    .hero__title {
        font-size: 2.5rem;
    }

    .hero__subtitle {
        font-size: 1.25rem;
    }

    .header__links {
        gap: 20px;
    }

    .hero__showcase-bg {
        width: 90%;
    }

    .hero__showcase-ai {
        width: 75%;
    }
}

/* ============================================
   响应式 - 小屏适配
   ============================================ */
@media (max-width: 767px) {
    .header {
        padding-top: var(--header-height-mobile);
        margin-top: calc(-1 * var(--header-height-mobile));
    }

    .header__container {
        height: var(--header-height-mobile);
    }

    .header__nav--sticky {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background-color: rgb(245 248 255 / 95%);
    }

    .header__links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 24px;
        background-color: rgba(15, 23, 42, 0.97);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        display: none;
        z-index: 90;
    }

    .header__links--open {
        display: flex;
    }

    .header__link {
        font-size: 1.25rem;
        color: #fff;
    }

    .header__hamburger {
        display: flex;
        z-index: 100;
    }

    .header__hamburger-line {
        background-color: var(--fg);
    }

    .header__hamburger--active .header__hamburger-line {
        background-color: #fff;
    }

    .hero__title {
        font-size: 1.75rem;
    }

    .hero__subtitle {
        font-size: 1.125rem;
        min-height: 2.6em;
    }

    .hero__desc {
        font-size: 0.875rem;
    }

    .hero__showcase-bg {
        width: 95%;
    }

    .hero__showcase-ai {
        width: 80%;
    }

    .hero__clients-track {
        flex-wrap: nowrap;
        overflow: hidden;
        justify-content: flex-start;
        width: 100%;
    }

    .hero__clients-track--scroll {
        animation: logoScroll 20s linear infinite;
    }
}

@keyframes logoScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* ============================================
   Agent - 智能体方案区域
   ============================================ */
.agent {
    position: relative;
    background: #0a0a0a;
    padding: 80px 0;
    overflow: hidden;
    z-index: 1;
}

.agent__bg-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.agent__bg-svg-1 {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    animation: agentPulseBig 4s ease-in-out infinite;
    opacity: 1;
}

.agent__bg-svg-2 {
    position: absolute;
    bottom: -50px;
    left: -80px;
    width: 400px;
    height: 400px;
    animation: agentPulseBig 5s ease-in-out infinite 1s;
    opacity: 1;
}

.agent__bg-dot {
    position: absolute;
    width: 100px;
    height: 100px;
    top: 20%;
    left: 15%;
    animation: agentPulse 3s ease-in-out infinite;
}

@keyframes agentPulseBig {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.08); opacity: 1; }
}

@keyframes agentPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.5); }
}

.agent__container {
    position: relative;
    z-index: 1;
}

.agent__header {
    text-align: center;
    margin-bottom: 48px;
}

.agent__header-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 82, 255, 0.12);
    border: 1px solid rgba(0, 82, 255, 0.25);
    border-radius: 100px;
    padding: 8px 20px;
    margin-bottom: 20px;
}

.agent__header-badge span {
    color: #4D7CFF;
    font-size: 0.875rem;
    font-weight: 600;
}

.agent__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.3;
}


.agent_back{
  background: rgb(0 1 202 / 68%);
    backdrop-filter: blur(1px);
    -webkit-backdrop-filter: blur(1px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 32px;
}

.agent__tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
    position: relative;
}

.agent__tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: transparent;
    
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    flex: 1;
    white-space: nowrap;
    font-family: "Microsoft YaHei UI", sans-serif;
}

.agent__tab:hover {
    
    color: rgba(255, 255, 255, 0.9);
}

.agent__tab.active {
    
    color: #fff;
}

.agent__tab-icon {
    flex-shrink: 0;
    color: inherit;
}

.agent__tab-name {
    flex-shrink: 0;
}

.agent__tab-progress {
    position: absolute;
    bottom: 0;
    left: 12px;
    right: 12px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 1px;
    overflow: hidden;
}

.agent__tab-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #0052FF, #00C6FF);
    border-radius: 1px;
    transition: width 0.1s linear;
}

.agent__tab.active .agent__tab-progress-bar {
    width: var(--tab-progress, 0%);
}

.agent__panels {
    position: relative;
}

.agent__panel {
    display: none;
    gap: 32px;
}

.agent__panel.active {
    display: flex;
}

.agent__panel-image {
    flex: 1;
    aspect-ratio: 4 / 3;
    border-radius: 12px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.04);
    animation: agentFadeInLeft 0.5s ease-out both;
}

.agent__panel-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.agent__panel-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    animation: agentFadeInRight 0.5s ease-out 0.15s both;
}

@keyframes agentFadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes agentFadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

.agent__panel-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.agent__panel-desc {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
    margin-bottom: 24px;
}

.agent__panel-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 32px;
}

.agent__feature {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.agent__feature .icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
}

.agent__feature-text h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 2px;
}

.agent__feature-text p {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.5;
}

.agent__panel-btn {
    align-self: flex-start;
}

/* ============================================
   Agent - 响应式
   ============================================ */
@media (max-width: 1199px) {
    .agent__title {
        font-size: 2rem;
    }

    .agent__tab {
        padding: 10px 14px;
        font-size: 0.8rem;
    }
    .header__cta-area{
        min-width: auto;
    }
}

.advantages {
    background: var(--bg);
    
}

.advantages .container {
    display: flex;
    align-items: flex-start;
}

.advantages__left {
    position: sticky;
    top: 0;
    width: 50%;
    height: 100vh;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 1;
    flex-shrink: 0;
    border-right: 1px solid var(--border);
   
}

.advantages__bg-circle {
    position: absolute;
    transform: translate(-50vh, -10vh);
    width: 80vh;
    height: 80vh;
    border-radius: 50%;
  background: radial-gradient(circle at 50% 50%,
    rgba(0,82,255,0.22) 0%,
    rgba(77,124,255,0.15) 15%,
    rgba(0,198,255,0.10) 30%,
    rgba(0,82,255,0.05) 50%,
    rgba(255,255,255,0) 75%, 
    rgba(255,255,255,0) 100%
);

    pointer-events: none;
    z-index: 0;
}

.advantages__left-inner {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
}

.advantages__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    border-radius: 100px;
    padding: 10px 24px;
}

.advantages__badge span {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
}

.advantages__headline {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--fg);
    line-height: 1.3;
    padding: 0 40px;
}

.advantages__desc {
    font-size: 1rem;
    color: var(--muted-fg);
    line-height: 1.8;
    padding: 0 40px;
}
.advantages .icon {
    width: 32px;
    height: 32px;
}

.advantages__image {
    width: 100%;
    padding-top: 30px;
}

.advantages__image img {
    width: 100%;
    display: block;
}

.advantages__right {
    width: 50%;
    z-index: 1;
    flex-shrink: 0;
}

.advantages__feature-item {
    display: flex;
    align-items: stretch;
    padding: 60px 40px;
    border-bottom: 1px solid var(--border);
}

.advantages__feature-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
    padding-right: 40px;
}

.advantages__feature-icon {
    flex-shrink: 0;
}

.advantages__feature-text {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.advantages__feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--fg);
    line-height: 1.3;
}

.advantages__feature-en {
    font-family: var(--font-en);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--accent);
    margin-left: 8px;
    vertical-align: middle;
}

.advantages__feature-desc {
    font-size: 0.95rem;
    color: var(--muted-fg);
    line-height: 1.8;
}

.advantages__feature-img {
    width: 30%;
    flex-shrink: 0;
    border-radius: 12px;
    overflow: hidden;
    align-self: center;
    aspect-ratio: 1;
}

.advantages__feature-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (max-width: 1199px) {
    .advantages__headline {
        font-size: 1.8rem;
    }
    .advantages__feature-title {
        font-size: 1.25rem;
    }
}

@media (max-width: 767px) {
    .advantages {
        flex-direction: column;
    }
    .advantages__left {
        width: 100%;
        position: relative;
        height: auto;
        min-height: 60vh;
    }
    .advantages__right {
        width: 100%;
    }
    .advantages__headline,
    .advantages__desc {
        padding: 0 24px;
    }
    .advantages__headline {
        font-size: 1.5rem;
    }
    .advantages__feature-item {
        flex-direction: column;
        padding: 40px 20px;
    }
    .advantages__feature-left {
        padding-right: 0;
    }
    .advantages__feature-img {
        width: 100%;
        max-width: 300px;
        align-self: flex-start;
    }
}

/* ============================================
   Features - 功能特点
   ============================================ */
.features {
    position: relative;
    background-image: url('/assets/img/hero-cnc-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    padding: 80px 0;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgb(255 255 255 / 41%);
    z-index: 0;
}

.features__container {
    position: relative;
    z-index: 1;
}

.features__header {
    text-align: center;
    margin-bottom: 60px;
}

.features__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    border-radius: 100px;
    padding: 10px 24px;
    margin-bottom: 20px;
}

.features__badge span {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
}

.features__title {
    font-size: 2rem;
    font-weight: 700;
    color: #000;
    line-height: 1.4;
    max-width: 800px;
    margin: 0 auto;
}

.features__list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.features__card {
    display: flex;
    align-items: stretch;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(1px);
    -webkit-backdrop-filter: blur(1px);
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.features__card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 82, 255, 0.2);
}
.features__card:nth-child(even){
    flex-direction: row-reverse;

}
.features__card-left {
    flex: 1;
    padding: 40px 36px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
}

.features__card-num {
    font-family: var(--font-en);
    font-size: 2.5rem;
    font-weight: 800;
    color: rgba(0, 82, 255, 0.3);
    line-height: 1;
}

.features__card-icon {
    flex-shrink: 0;
}
.features__card-icon  .icon {
    width: 40px;
    height: 40px;
}
.features__card-icon svg {
    display: block;
}

.features__card-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #000;
    line-height: 1.3;
}

.features__card-desc {
    font-size: 0.95rem;
    color: var(--muted-fg);
    line-height: 1.8;
}

.features__card-tags {
    margin-top: 8px;
}

.features__card-tags-label {
    display: block;
    font-size: 0.8rem;
    color: var(--muted-fg);
    margin-bottom: 8px;
}

.features__card-tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.features__card-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--muted-fg);
    background: rgba(255, 255, 255, 0.04);
    white-space: nowrap;
}

.features__card-tag--icon svg {
    width: 16px;
    height: 16px;
}

.features__card-tag--logo {
    font-family: var(--font-en);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.features__card-tag--svg {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.features__card-tag--svg svg {
    flex-shrink: 0;
}

.features__card-header {
    display: flex;
    align-items: center;
    gap: 12px;
}

.features__card-right {
    width: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.features__card-img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 12px;
    display: block;
}

.features__mindmap {
    width: 100%;
    height: 100%;
    max-width: 240px;
    max-height: 240px;
}

@media (max-width: 1199px) {
    .features__title {
        font-size: 1.6rem;
    }
    .features__card-title {
        font-size: 1.2rem;
    }
    .features__card-right {
        width: 40%;
    }
}

@media (max-width: 767px) {
    .features {
        padding: 48px 0;
    }
    .features__title {
        font-size: 1.3rem;
    }
    .features__header {
        margin-bottom: 36px;
    }
    .features__card,.features__card:nth-child(even) {
        flex-direction: column;
    }
    .features__card-left {
        padding: 28px 24px;
    }
    .features__card-right {
        width: 100%;
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding: 20px;

    }
    .features__mindmap {
        max-width: 220px;
        max-height: 220px;
    }
    .features__card-num {
        font-size: 2rem;
    }
    .features__card-title {
        font-size: 1.1rem;
    }
    .features__list {
        gap: 20px;
    }
}

/* ============================================
   About - 关于我们
   ============================================ */
.about {
    background: var(--bg);
}

.about__container {
    display: flex;
    align-items: stretch;
}

.about__left {
    width: 50%;
    flex-shrink: 0;
}

.about__section {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 48px 80px 0;
}
.about__section--intro{
 min-height: 100vh;
}
.about__section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 82, 255, 0.08);
    border-radius: 100px;
    margin-bottom: 24px;
    width: fit-content;
}
.about__section-badge .icon{
    width: 20px;
    height: 20px;

}

.about__section-badge span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.02em;
}

.about__section-title {
    font-size: 2rem;
    color: var(--fg);
    margin-bottom: 24px;
    line-height: 1.3;
}

.about__section-title--lg {
    font-size: 2.6rem;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 32px;
}

.about__section-desc {
    font-size: 1.05rem;
    color: var(--muted-fg);
    line-height: 1.9;
    max-width: 560px;
}

.about__section-cards {
    display: flex;
    gap: 20px;
        padding: 20px;
}

.about__section-cards--col1 {
    flex-direction: column;
}

.about__section-cards--col2 {
    flex-direction: row;
}

.about__section-cards--col3 {
    gap: 24px;
}

.about__section-card {
    display: flex;
    flex-direction: column;
}

.about__section-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about__section-card-icon .icon{
    width: 38px;
    height: 38px;

}

.about__section-card-icon--square {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--accent);
}

.about__section-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--fg);
    line-height: 1.4;
}

.about__section-card-desc {
    font-size: 0.9rem;
    color: var(--muted-fg);
    line-height: 1.6;
}

.about__section-card-desc--bottom {
    align-self: flex-end;
}

.about__section-card--left {
    align-items: flex-start;
    gap: 10px;
}

.about__section-card--left .about__section-card-title {
    margin-top: 8px;
}

.about__section-card--center-gray {
    align-items: center;
    text-align: center;
    gap: 8px;
    background: var(--bg1);
    border-radius: 12px;
    padding: 24px 20px;
    flex: 1;
}

.about__section-card--center-gray .about__section-card-desc {
    margin-top: 16px;
}

.about__section-card--lr {
    flex-direction: row;
    align-items: flex-start;
    gap: 24px;
    padding-bottom: 30px;
}

.about__section-card--lr .about__section-card-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    flex-shrink: 0;
}

.about__section-card--lr .about__section-card-desc--bottom {
    align-self: flex-end;
    margin-top: 0;
}

.about__section-card--left-gray {
    align-items: flex-start;
    text-align: left;
    gap: 8px;
    background: var(--bg1);
    border-radius: 12px;
    padding: 24px 20px;
    flex: 1;
}

.about__section-card--left-gray .about__section-card-title,
.about__section-card--left-gray .about__section-card-desc {
    margin-left: 0;
}

.about__section-card--left-gray .about__section-card-icon {
    margin-bottom: 16px;
}

.about__right {
    width: 50%;
    flex-shrink: 0;
    height: 100vh;
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about__right-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 40px;
}

.about__right-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(0, 82, 255, 0.08);
    border-radius: 100px;
}

.about__right-badge span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.02em;
}


.about__right-img {
    max-width: 100%;
    max-height:80vh ;
}

@media (max-width: 1199px) {
    .about__section-title {
        font-size: 1.6rem;
    }
    .about__section-title--lg {
        font-size: 2rem;
    }
    .about__section {
        padding: 60px 32px 60px 0;
    }
    .about__right-img {
        width: 200px;
        height: 200px;
    }
    .about__section-cards--col2 {
        flex-direction: column;
    }
}

/* ============================================
   Evaluate - 客户评价
   ============================================ */
.evaluate {
    background-color: var(--bg1);
    padding: 80px 0;
}

.evaluate__header {
    text-align: center;
    margin-bottom: 48px;
}

.evaluate__title {
    font-size: 2.2rem;
    color: var(--fg);
    margin-bottom: 8px;
}

.evaluate__subtitle {
    font-size: 1rem;
    color: var(--muted-fg);
}

.evaluate__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.evaluate__card {
    background: var(--card);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: box-shadow 0.3s ease;
}

.evaluate__card:hover {
    box-shadow: var(--shadow-xl);
}

.evaluate__card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.evaluate__stars {
    display: flex;
    gap: 2px;
}

.evaluate__tag {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    background: rgba(0, 82, 255, 0.08);
    padding: 4px 12px;
    border-radius: 100px;
}

.evaluate__text {
    font-size: 0.95rem;
    line-height: 1.75;
    color: var(--fg);
}

.evaluate__author {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: auto;
}

.evaluate__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent-sec));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
}

.evaluate__author-info {
    display: flex;
    flex-direction: column;
}

.evaluate__name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--fg);
}

.evaluate__role {
    font-size: 0.78rem;
    color: var(--muted-fg);
}

@media (max-width: 1199px) {
    .evaluate__title {
        font-size: 1.8rem;
    }
}

@media (max-width: 767px) {
    .evaluate {
        padding: 60px 0;
    }

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

    .evaluate__title {
        font-size: 1.5rem;
    }

    .evaluate__card {
        padding: 24px;
    }
}

@media (max-width: 767px) {
    .about__container {
        flex-direction: column;
    }
    .about__left {
        width: 100%;
    }
    .about__right {
        width: 100%;
        order: -1;
    }
    .about__right-inner {
        position: relative;
        height: auto;
        min-height: 50vh;
        padding: 40px 20px;
    }
    .about__section {
        min-height: auto;
        padding: 48px 0;
    }
    .about__section-title {
        font-size: 1.4rem;
    }
    .about__section-title--lg {
        font-size: 1.6rem;
    }
    .about__right-img {
        width: 160px;
        height: 160px;
    }
    .about__section-cards--col2 {
        flex-direction: column;
    }
    .about__section-card--lr {
        flex-direction: column;
        gap: 12px;
    }
    .about__section-card--lr .about__section-card-desc--bottom {
        align-self: flex-start;
    }
}

/* ============================================
   Contact - 联系我们
   ============================================ */
.contact {
    padding: 80px 0;
}

.contact__banner {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #0052FF 0%, #4D7CFF 50%, #00C6FF 100%);
    border-radius: 24px;
    padding: 80px 40px;
    text-align: center;
    color: #fff;
}

.contact__decoration {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    pointer-events: none;
}

.contact__decoration--1 {
    width: 300px;
    height: 300px;
    top: -80px;
    right: -60px;
    background: #fff;
}

.contact__decoration--2 {
    width: 200px;
    height: 200px;
    bottom: -50px;
    left: -40px;
    background: #fff;
}

.contact__decoration--3 {
    width: 120px;
    height: 120px;
    top: 40%;
    left: 15%;
    background: #fff;
    opacity: 0.06;
}

.contact__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.contact__desc {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 36px;
    position: relative;
    z-index: 1;
}

.contact__btn {
    position: relative;
    z-index: 1;
    background: #fff;
    color: var(--accent);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.contact__btn:hover {
    background: #f0f4ff;
    color: var(--accent);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* ============================================
   Footer - 底部
   ============================================ */
.footer {
    background: var(--fg);
    color: #cbd5e1;
    padding: 60px 0 0;
}

.footer__top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
    height: 40px;
    width: auto;
    object-fit: contain;
    margin-bottom: 16px;
}

.footer__address {
    font-size: 0.875rem;
    line-height: 1.8;
    color: #94a3b8;
}

.footer__wechat-label {
    font-size: 0.875rem;
    margin-bottom: 12px;
    color: #e2e8f0;
}

.footer__qrcode {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
}

.footer__nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer__nav-link {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
}

.footer__nav-link:hover {
    color: #fff;
}

.footer__bottom {
    padding: 20px 0;
    text-align: center;
}

.footer__icp {
    font-size: 0.75rem;
    color: #64748b;
}

/* ============================================
   响应式 - Contact & Footer
   ============================================ */
@media (max-width: 991px) {
    .contact__title {
        font-size: 2rem;
    }

    .contact__banner {
        padding: 60px 32px;
    }

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

@media (max-width: 767px) {
    .contact {
        padding: 48px 0;
    }

    .contact__title {
        font-size: 1.5rem;
    }

    .contact__banner {
        padding: 48px 20px;
        border-radius: 16px;
    }

    .footer__top {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}


@media (max-width: 1000px) {
    .agent {
        padding: 48px 0;
    }

    .agent__title {
        font-size: 1.5rem;
    }

    .agent__tabs {
        display: none;
    }

    .agent__panel {
        display: flex;
        flex-direction: column;
        gap: 20px;
        margin-bottom: 32px;
        animation: none;
    }

    .agent__panel:last-child {
        margin-bottom: 0;
    }

    .agent__panel-image {
        aspect-ratio: 4 / 3;
        animation: none;
    }

    .agent__panel-info {
        animation: none;
    }

    .agent__panel-features {
        grid-template-columns: 1fr;
    }

    .agent__panel-title {
        font-size: 1.25rem;
    }

    .header__cta-area {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        z-index: 1000;
        background: transparent;
       
        display: flex;
        justify-content: center;
        padding: 12px 16px;
    }

    .header__cta-area .btn-cta--nav {
        width: 100%;
        padding: 14px 36px;
        font-size: 1rem;
    }

    .advantages .container {
        flex-direction: column;
    }

    .advantages__left {
        width: 100%;
        position: relative;
        height: auto;
        min-height: 50vh;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .advantages__bg-circle {
        transform: translate(-40vw, -10vw);
        width: 70vw;
        height: 70vw;
    }

    .advantages__left-inner {
        padding: 40px 0;
    }

    .advantages__headline {
        font-size: 1.6rem;
        padding: 0 24px;
    }

    .advantages__desc {
        padding: 0 24px;
    }

    .advantages__image {
        padding: 20px 24px 0;
    }

    .advantages__right {
        width: 100%;
    }

    .advantages__feature-item {
        padding: 40px 24px;
    }

    .advantages__feature-left {
        padding-right: 24px;
    }

    .advantages__feature-title {
        font-size: 1.15rem;
    }

    .advantages__feature-img {
        width: 35%;
    }
    .about__right{
        position: unset;
        display: none;
    }


}