/* 375 设计稿：1rem = 10px（随视口等比缩放），大屏封顶避免过大 */
html {
    font-size: calc(100vw / 37.5);
}

@media (min-width: 750px) {
    html {
        font-size: 20px;
    }
}

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

html,
body {
    width: 100%;
    min-height: 100%;
    -webkit-text-size-adjust: 100%;
    background: #000;
    color: #fff;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

button,
input,
textarea {
    font: inherit;
    border: 0;
    outline: none;
    background: transparent;
}

.page {
    width: 100%;
    min-height: 100vh;
    margin: 0 auto;
    /* 左右 13px，按 rem 基准 1rem≈10px → 1.3rem */
    padding: 3rem 1.3rem 0 1.3rem;
    background-image: url("./img/bg.png");
    background-repeat: no-repeat;
    background-position: center top;
    background-size: contain;
    /*background: radial-gradient(42% 25% at 92% 7%, rgba(24, 235, 225, 0.36), rgba(24, 235, 225, 0) 100%),*/
    /*radial-gradient(50% 46% at 76% 64%, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0) 78%),*/
    /*radial-gradient(26% 20% at 4% 4%, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0) 100%),*/
    /*#0c0f14;*/
}

.hero {
    text-align: center;
}

.logo-box {
    margin-bottom: 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 8.4rem;
    height: 5.2rem;
}

.logo-img {
    width: 7.9rem;
    height: 4.8rem;
    object-fit: contain;
}

.title {
    font-size: 3.2rem;
    font-weight: 900;
    letter-spacing: 0.1rem;
}

.title-img {
    width: 100%;
    height: 3.55rem;
}

.title-core {
    position: relative;
    display: inline-block;
}

.title-core::after {
    content: "";
    position: absolute;
    left: 0.6rem;
    right: 0.6rem;
    bottom: -0.2rem;
    height: 0.3rem;
    border-radius: 0.2rem;
    background: #14dff4;
}

.subtitle {
    display: inline-block;
    margin-top: 0.6rem;
    font-size: 1.8rem;
    font-weight: 600;
}

.desc {
    margin-top: 0.4rem;
    font-size: 1.3rem;
}

.panel {
    margin-top: 3.2rem;
    padding: 1.4rem 1.2rem 1.2rem;
    border-radius: 0.8rem;
    border: 0.1rem solid #737373;
}

.line {
    font-size: 1.4rem;
    font-weight: 400;
    margin-bottom: 0.4rem;
}

.hl {
    color: #00F0FD;
    font-weight: 500;
}

.download-card,
.contact-card {
    border-radius: 1.2rem;
    border: 0.1rem solid #737373;
    background: rgba(217, 217, 217, 0.1);
}

.download-card {
    margin-top: 1.2rem;
    padding: 1rem;
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
}

.app-info {
    display: flex;
    align-items: center;
}

.app-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.app-icon img {
    width: 5.2rem;
    height: 5.2rem;
}

.app-name {
    font-size: 1.6rem;
    font-weight: 600;
}

.download-btn {
    height: 3.6rem;
    width: 17.6rem;
    border-radius: 0.8rem;
    background: #00F0FD;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-btn:first-child {
    margin-bottom: 1rem;
}

.download-btn span {
    font-size: 1.3rem;
    font-weight: 700;
    color: #06494D;
}

.btn-ico {
    margin-right: 0.6rem;
}

.btn-ico img {
    width: 2rem;
    height: 2rem;
}

.contact-card {
    margin-top: 1rem;
    padding: 1rem 1.5rem;
}

.contact-card h2 {
    font-size: 1.6rem;
    margin-bottom: 0.2rem;
    font-weight: 600;
}

.contact-card p {
    font-size: 1.6rem;
    font-weight: 600;
}

.qq-icon img {
    width: 2rem;
    height: 2rem;
}

.qq-box {
    display: flex;
    align-items: center;
}

.qq-box .hl {
    font-size: 1.8rem;
    font-weight: 600;
}

.icon_triangle {
    width: 3.6rem;
    height: 3.6rem;
    position: absolute;
    top: 0;
    right: 0;
}

.adv {
    margin-top: 2rem;
    border: 0.1rem solid #737373;
    border-radius: 0.8rem 0.8rem 0 0;
}

.adv-head {
    position: relative;
    border-radius: 0.8rem 0.8rem 0 0;
    border-bottom: 0.1rem solid #737373;
    background: linear-gradient(90deg, rgba(217, 217, 217, 0.2) 0%, rgba(115, 115, 115, 0.2) 100%);
    text-align: center;
    padding: 1rem 0;
}

.adv-head-img {
    width: 25.2rem;
    height: 2.8rem;
    margin: 0 auto 0.5rem auto;
}

.adv-head h2 {
    color: #00F0FD;
    font-size: 2.2rem;
    font-weight: 800;
}

.adv-head p {
    margin-top: 0.5rem;
    color: #A5F5F9;
    font-size: 1.3rem;
}

.adv-collapse {
    display: flex;
    align-items: center;
    position: absolute;
    right: 1rem;
    bottom: 0.8rem;
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.2rem;
}

.adv-collapse img {
    width: 1.2rem;
    height: 1.2rem;
    margin-left: 0.3rem;
}

.adv-card-box {
    margin: 1rem;
}

.adv-card-box.is-collapsed {
    display: none;
}

.adv-card {
    margin-top: 1.2rem;
    padding: 1.4rem 1.4rem 1.6rem;
    border-radius: 0.8rem;
    border: 0.1rem solid #737373;
    background: linear-gradient(90deg, rgba(217, 217, 217, 0.2) 0%, rgba(115, 115, 115, 0.2) 99.14%);
}

.adv-icon {
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.adv-icon img {
    width: 4.2rem;
    height: 4.2rem;
}

.adv-card h3 {
    color: #00F0FD;
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.adv-card p {
    font-size: 1.3rem;
    line-height: 1.5;
    font-weight: 500;
}

/* ---------- 痛点列表 ---------- */
.pain-section {
    margin-top: 2.2rem;
    position: relative;
}

.pain-badge-row {
    display: flex;
    align-items: stretch;
    width: fit-content;
    max-width: 100%;
    margin-bottom: 1.2rem;
}

.pain-badge {
    position: absolute;
    top: -0.8rem;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    width: 20rem;
    height: 4.2rem;
    padding-left: 1.6rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: #06494D;
    background: url("./img/icon_tag.png") no-repeat center / 100% 100%;
}

.pain-card {
    width: 100%;
    padding: 3.8rem 1rem 2rem 1rem;
    border-radius: 1.4rem;
    border: 0.1rem solid #737373;
}

.pain-list {
    list-style: none;
}

.pain-list li {
    position: relative;
    padding-left: 1.4rem;
    margin-bottom: 1.4rem;
    font-size: 1.2rem;
    font-weight: 500;
}

.pain-list li:last-child {
    margin-bottom: 0;
}

.pain-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: #b8c5ce;
}

/* ---------- 底部 CTA ---------- */
.cta-banner {
    position: relative;
    margin-top: 2rem;
    width: 100%;
}

.cta-inner {
    width: 100%;
}

.cta-main {
    width: 100%;
    min-height: 11.4rem;
    display: flex;
    align-items: flex-start;
    padding: 1.6rem 1.6rem;
    background: url("./img/Group_2134.png") no-repeat center / 100% 100%;
}

.cta-copy {
    flex: 1;
    min-width: 0;
}

.cta-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.cta-line {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.cta-line:last-of-type {
    margin-bottom: 0;
}

.cta-accent {
    display: none;
}

.cta-placeholder {
    display: none;
}

/* ---------- 承诺区块（横向图标 + 文案） ---------- */
.promise-block {
    margin-top: 2rem;
    width: 100%;
    border-radius: 0.8rem;
    border: 0.1rem solid #737373;
}

.promise-head {
    padding: 1.3rem 1.5rem;
    text-align: left;
    background: linear-gradient(90deg, rgba(217, 217, 217, 0.2) 0%, rgba(115, 115, 115, 0.2) 100%);
}

.promise-head-line {
    font-size: 1.8rem;
    font-weight: 600;
}

.promise-head-line + .promise-head-line {
    margin-top: 0.2rem;
}


.promise-rows {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 2rem 0.8rem;
}

.promise-row {
    display: flex;
    align-items: center;
    gap: 1.4rem;
}

.promise-ico-wrap {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.promise-ico-wrap img {
    width: 7.3rem;
    height: 7rem;
    object-fit: contain;
}

.promise-copy {
    flex: 1;
    min-width: 0;
    text-align: left;
}

.promise-txt {
    font-size: 1.4rem;
    font-weight: 500;
}

.promise-txt + .promise-txt {
    margin-top: 0.2rem;
}

.promise-hl {
    color: #00F0FD;
    font-weight: 700;
}

/* ---------- 加入步骤 + 二维码 ---------- */
.join-step {
    margin-top: 2rem;
    border-radius: 1rem;
    overflow: hidden;
    border: 0.1rem solid #1f2f39;
    background: radial-gradient(42% 35% at 92% 8%, rgba(0, 240, 253, 0.2), rgba(0, 240, 253, 0) 100%),
    rgba(11, 15, 20, 0.84);
}

.join-top {
    position: relative;
    padding: 1.4rem 1.4rem 1.2rem;
    display: flex;
    justify-content: space-between;
    gap: 1.2rem;
    background: linear-gradient(92.88deg, #00F0FD -10.37%, rgba(0, 240, 253, 0) 97.67%);
}

.join-copy {
    flex: 1;
    min-width: 0;
}

.join-title {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.join-line {
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.join-line:last-child {
    margin-bottom: 0;
}

.join-small {
    font-size: 1.1rem;
}

.join-corner {
    width: 5.8rem;
    height: 5.8rem;
    flex-shrink: 0;
    align-self: flex-end;
    border: 0.1rem dashed rgba(255, 255, 255, 0.72);
    background: linear-gradient(45deg, rgba(255, 255, 255, 0) 42%, rgba(255, 255, 255, 0.08) 42% 100%);
}

.join-qr-wrap {
    padding: 2rem 0 2.2rem;
    display: flex;
    justify-content: center;
}

.join-qr-card {
    border-radius: 0.8rem;
    border: 0.1rem solid rgba(255, 255, 255, 0.3);
    background: rgba(16, 22, 29, 0.56);
    padding: 1rem 1.5rem;
    text-align: center;
}

.join-qr-card h3 {
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.join-qr {
    width: 100%;
    text-align: center;
}

.join-qr img {
    width: 9rem;
    height: 9rem;
    object-fit: cover;
    margin: 0 auto;
}

/* ---------- 底部品牌横幅 ---------- */
.final-banner {
    margin-top: 1.6rem;
}

.final-inner {
    position: relative;
    width: 100%;
    min-height: 11.4rem;
    border-radius: 0.8rem;
    padding: 1.6rem 1.6rem;
    background: url("./img/Group_2134.png") no-repeat center / 100% 100%;
}

.final-inner h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.final-inner p {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 0.8rem;
}

.final-inner p:last-child {
    margin-bottom: 0;
}

/* ---------- 平台推荐 ---------- */
.platform {
    margin-top: 2rem;
    border-radius: 0.8rem;
    border: 0.1rem solid #737373;
    overflow: hidden;
    background: rgba(217, 217, 217, 0.1);
}

.platform-head {
    padding: 1.3rem 1.5rem;
    border-bottom: 0.1rem solid #737373;
    background: linear-gradient(90deg, rgba(217, 217, 217, 0.2) 0%, rgba(115, 115, 115, 0.2) 100%);
}

.platform-head h3 {
    font-size: 1.6rem;
    font-weight: 600;
}

.platform-list {
    padding: 2rem 1.6rem;
}

.platform-item {
    position: relative;
    margin-bottom: 2rem;
}

.platform-item:last-child {
    margin-bottom: 0;
}

.platform-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.platform-logo {
    margin-right: 1rem;
}

.platform-logo img {
    width: 5.2rem;
    height: 5.2rem;
    object-fit: cover;
}

.platform-name {
    font-size: 1.6rem;
    font-weight: 600;
}

.platform-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24.1rem;
    height: 4.2rem;
    border-radius: 0.8rem;
    background: #00F0FD;
    color: #06494D;
    font-size: 1.3rem;
    font-weight: 700;
}

/* ---------- 成功案例展示 ---------- */
.case-showcase {
    position: relative;
    margin-top: 2rem;
    padding: 2rem 1rem 1.6rem;
    border-radius: 1.2rem;
    border: 0.1rem solid #737373;
    overflow: hidden;
}

.case-title {
    position: relative;
    z-index: 1;
    text-align: center;
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.case-viewport {
    position: relative;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
    /* 让浏览器优先处理纵向滚动，横向由我们 touchmove 判定 */
    touch-action: pan-y;
}

.case-stage {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 0 0 1rem;
    border-radius: 0.8rem;
    border: 0.1rem solid #737373;
    background: linear-gradient(90deg, rgba(217, 217, 217, 0.1) 0%, rgba(115, 115, 115, 0.1) 100%);
    overflow: hidden;
}

/* 成功案例展示：自动滚动轮播（多卡片） */
.case-strip {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
    width: max-content;
    min-height: 26rem;
    transition: transform 0.32s cubic-bezier(0.25, 0.8, 0.25, 1);
    will-change: transform;
}

.case-strip.case-strip--dragging {
    transition: none;
}

.case-slide {
    flex: 0 0 auto;
    width: 9rem;
    height: 18rem;
    margin-right: 1rem;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.case-slide.is-active {
    /*height: 22rem;*/
    /*width: 11rem;*/
}

.case-slide .case-phone-frame {
    opacity: 0.88;
    transform: scale(1);
    filter: none;
    /*height: 18rem;*/
}

.case-slide:first-child {
    margin-left: 0.8rem;
}

.case-slide.is-active .case-phone-frame {
    transform: scale(1.2222) translateY(9%);
    opacity: 1;
    filter: drop-shadow(0 1rem 1.8rem rgba(0, 0, 0, 0.5));
    /*height: 22rem;*/
}

.case-slide.is-active .case-phone-frame.case-frame--zoom-from {
    transform: scale(1);
    opacity: 0.82;
}

.case-slot {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    z-index: 1;
}

.case-slot--side {
    width: 9rem;
    height: 18rem;
    z-index: 1;
}

.case-slot--center {
    width: 11rem;
    height: 22rem;
    z-index: 3;
}

.case-phone-frame {
    position: relative;
    width: 100%;
    height: 100%;
    flex: 1;
    min-height: 0;
    border-radius: 1rem;
    overflow: hidden;
    /*border: 0.2rem solid rgba(255, 255, 255, 0.15);*/
    /*background: #0a0a0a;*/
    box-sizing: border-box;
    transform-origin: center bottom;
    transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1),
    opacity 0.45s ease;
    border-radius: 0.8rem;
}

.case-slide .case-phone-frame img {
    transition: filter 0.25s ease;
}

.case-slide .case-phone-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2;
}

.case-slide .case-phone-frame .case-slide-bg {
    position: relative;
    z-index: 1;
    filter: blur(1px);
    border: 0.1rem solid #000;
    border-radius: 0.8rem;

}

.case-slide .case-phone-frame .case-slide-overlay-img {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    height: 12rem; /* 153px */
    width: 8.8rem;
    max-width: 100%;
    /*object-fit: contain;*/
    z-index: 3;
    filter: none;
    cursor: pointer;
    border-radius: 2px;
}

.case-slide.is-active .case-phone-frame .case-slide-overlay-img {
    height: calc(100% - 4.2rem); /* 165px */
    width: calc(100% - 0.2rem);
}

.case-slot--side .case-phone-frame {
    transform: scale(0.94);
    opacity: 0.88;
}

.case-slot--center .case-phone-frame {
    transform: scale(1);
    opacity: 1;
    filter: drop-shadow(0 1rem 1.8rem rgba(0, 0, 0, 0.5));
}

.case-slot--center .case-phone-frame.case-frame--zoom-from {
    transform: scale(0.78);
    opacity: 0.82;
}

.case-slot--side .case-phone-frame.case-frame--side-from {
    transform: scale(1.06);
    opacity: 1;
}

.case-phone-frame img {
    width: 100%;
    height: 100%;
    /*object-fit: cover;*/
    display: block;
}

.case-dots {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.4rem;
    padding-bottom: 0.2rem;
    max-height: 4.8rem;
    overflow-y: auto;
    flex-shrink: 0;
}

.case-dot {
    border: 0;
    width: 0.6rem;
    height: 0.6rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.28);
    padding: 0;
    cursor: pointer;
}

.case-dot.is-active {
    background: #fff;
    box-shadow: 0 0 0.6rem rgba(255, 255, 255, 0.6);
}

.case-foot {
    position: relative;
    z-index: 1;
    text-align: center;
    font-size: 1.2rem;
    color: #737373;
    font-weight: 500;
    margin: 6rem 0 2.3rem 0;
}

/* ---------- 图片预览弹层（轮播点击放大） ---------- */
.case-preview-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.82);
}

.case-preview-overlay.is-open {
    display: flex;
}

.case-preview-inner {
    max-width: 95vw;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-preview-img {
    max-width: 95vw;
    max-height: 90vh;
    transform-origin: center center;
    transition: transform 0.2s ease;
    display: block;
}

.case-preview-close {
    position: fixed;
    top: 1.2rem;
    right: 1.2rem;
    width: 3.2rem;
    height: 3.2rem;
    border-radius: 1.6rem;
    border: 0;
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    font-size: 2.2rem;
    line-height: 3.2rem;
    cursor: pointer;
}

.case-preview-close:active {
    background: rgba(255, 255, 255, 0.28);
}

#case-carousel2 {
    margin-top: 2rem;
}