/* =========================================================
   多途网络 · 联系我们页科技感美化层（contact-enhance.css）
   适用页面：lists_single_contact.htm
   说明：
   - 通过限定 .ct-* 前缀类 / #section-sdk1 / .box5 / .mod2 等独有 selector 限制作用域
   - 与 SCDN / server-enhance 同色系，整站统一
   - 配合 contact-enhance.js 触发滚动揭示
   ========================================================= */

:root {
    --ct-primary: #2981ff;
    --ct-cyan: #22d3ee;
    --ct-violet: #8b5cf6;
    --ct-deep: #0f172a;
    --ct-grad: linear-gradient(135deg, #2981ff 0%, #22d3ee 100%);
    --ct-grad-violet: linear-gradient(135deg, #8b5cf6 0%, #2981ff 100%);
    --ct-grad-cyan: linear-gradient(135deg, #22d3ee 0%, #14b8a6 100%);
    --ct-shadow-soft: 0 10px 30px -12px rgba(41, 129, 255, .18), 0 4px 14px -6px rgba(15, 32, 68, .08);
    --ct-shadow-strong: 0 22px 50px -18px rgba(41, 129, 255, .45), 0 6px 18px -6px rgba(15, 32, 68, .18);
    --ct-radius: 18px;
}

/* =========================================================
   1. Banner 区文字（白圈描边大蓝字，与 server/SCDN 同风格）
   ========================================================= */

/* 给 banner-ani 加上下安全内边距，避免被透明 header 遮挡 */
.banner-single .banner-ani,
#banner .banner-ani {
    padding-top: 70px !important;
    padding-bottom: 24px !important;
    box-sizing: border-box;
    align-items: center !important;
}

/* 兜底：清空原 h2 默认样式，让子 span 自由排版 */
.banner-single .banner-info h2 {
    margin: 0 0 14px 0 !important;
    line-height: 1 !important;
    background: none !important;
    color: inherit !important;
    text-shadow: none !important;
    -webkit-text-fill-color: initial !important;
    font-weight: normal !important;
    font-size: inherit !important;
    padding: 0 !important;
}

.banner-single .banner-info .ct-banner-tag {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    padding: 5px 14px !important;
    margin: 0 0 12px 0 !important;
    background: rgba(255, 255, 255, .65) !important;
    border: 1px solid rgba(41, 129, 255, .35) !important;
    border-radius: 22px !important;
    font-size: 11px !important;
    font-weight: 700 !important;
    color: #1d4ed8 !important;
    letter-spacing: 2px !important;
    text-transform: uppercase !important;
    backdrop-filter: blur(10px) saturate(160%);
    -webkit-backdrop-filter: blur(10px) saturate(160%);
    box-shadow: 0 6px 18px -8px rgba(41, 129, 255, .4) !important;
    line-height: 1.4 !important;
    animation: ct-fadeInDown .8s ease both;
    width: auto !important;
    max-width: none !important;
}
.banner-single .banner-info .ct-banner-tag::before {
    content: "";
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #2981ff;
    box-shadow: 0 0 10px #2981ff, 0 0 20px rgba(41, 129, 255, .5);
    animation: ct-blink 1.6s ease-in-out infinite;
}
@keyframes ct-blink {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%      { opacity: .55; transform: scale(.75); }
}
@keyframes ct-fadeInDown {
    from { opacity: 0; transform: translateY(-12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.banner-single .banner-info .ct-h2-main {
    display: block !important;
    font-size: 48px !important;
    font-weight: 900 !important;
    line-height: 1.05 !important;
    letter-spacing: 1.5px !important;
    color: #2563eb !important;
    -webkit-text-fill-color: #2563eb !important;
    background: none !important;
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
    text-shadow:
        -1px -1px 0 rgba(255, 255, 255, .95),
         1px -1px 0 rgba(255, 255, 255, .95),
        -1px  1px 0 rgba(255, 255, 255, .95),
         1px  1px 0 rgba(255, 255, 255, .95),
         0  4px 14px rgba(30, 64, 175, .38),
         0  8px 24px rgba(30, 64, 175, .2) !important;
    margin: 0 0 10px 0 !important;
    padding: 0 !important;
    animation: ct-fadeUpBig 1s .15s ease both;
}

.banner-single .banner-info .ct-h2-sub {
    position: relative;
    display: inline-block !important;
    font-size: 20px !important;
    font-weight: 700 !important;
    line-height: 1.2 !important;
    color: #0f2350 !important;
    -webkit-text-fill-color: #0f2350 !important;
    background: none !important;
    padding: 0 3px 3px !important;
    letter-spacing: .8px !important;
    text-shadow:
        -1px -1px 0 rgba(255, 255, 255, .85),
         1px -1px 0 rgba(255, 255, 255, .85),
        -1px  1px 0 rgba(255, 255, 255, .85),
         1px  1px 0 rgba(255, 255, 255, .85),
         0  2px 8px rgba(15, 32, 68, .22) !important;
    animation: ct-fadeUpBig 1s .3s ease both;
    z-index: 1;
    margin: 0 !important;
}
.banner-single .banner-info .ct-h2-sub::before {
    content: "";
    position: absolute;
    left: 0; right: 0;
    bottom: 1px;
    height: 7px;
    background: linear-gradient(90deg, rgba(41, 129, 255, .42) 0%, rgba(34, 211, 238, .28) 60%, transparent 100%);
    border-radius: 2px;
    z-index: -1;
    transform-origin: left;
    animation: ct-highlight 1s .6s cubic-bezier(.3, .8, .3, 1) both;
}
@keyframes ct-fadeUpBig {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes ct-highlight {
    from { transform: scaleX(0); }
    to   { transform: scaleX(1); }
}

/* 4 个特性胶囊（精简版） */
.banner-single .banner-info .ct-feature-tags {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    margin: 14px 0 0 !important;
    padding: 0 !important;
    list-style: none !important;
    animation: ct-fadeUpBig 1s .42s ease both;
}
.banner-single .banner-info .ct-feature-tags li {
    display: inline-flex !important;
    align-items: center;
    gap: 5px !important;
    padding: 4px 12px !important;
    background: rgba(255, 255, 255, .85) !important;
    border: 1px solid rgba(41, 129, 255, .25) !important;
    border-radius: 18px !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    color: #1d4ed8 !important;
    letter-spacing: .3px !important;
    box-shadow: 0 4px 12px -6px rgba(41, 129, 255, .25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all .25s ease;
    cursor: default;
    list-style: none !important;
    width: auto !important;
    line-height: 1.4 !important;
    margin: 0 !important;
}
.banner-single .banner-info .ct-feature-tags li::before {
    content: "";
    flex: 0 0 5px;
    width: 5px; height: 5px;
    border-radius: 50%;
    background: linear-gradient(135deg, #2981ff, #22d3ee);
    box-shadow: 0 0 6px rgba(41, 129, 255, .6);
}
.banner-single .banner-info .ct-feature-tags li:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 1) !important;
    border-color: rgba(41, 129, 255, .55) !important;
    box-shadow: 0 10px 22px -8px rgba(41, 129, 255, .45);
    color: #1e3a8a !important;
}

/* Banner 描述段 + CTA（精简版） */
.banner-single .banner-info > p {
    color: #1f2c44 !important;
    font-weight: 500;
    font-size: 13px !important;
    line-height: 22px !important;
    margin: 14px 0 16px !important;
    text-shadow: 0 1px 6px rgba(255, 255, 255, .9), 0 0 14px rgba(255, 255, 255, .55);
    animation: ct-fadeUpBig 1s .55s ease both;
    padding-top: 0 !important;
    /* 限制描述段最多 2 行，避免超出 banner */
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.banner-single .banner-info .price-banner-box {
    animation: ct-fadeUpBig 1s .7s ease both;
}
.banner-single .banner-info .n-btn-default.active {
    background: var(--ct-grad) !important;
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, .3) !important;
    border-radius: 24px !important;
    padding: 0 26px !important;
    height: 42px !important;
    line-height: 42px !important;
    font-weight: 600;
    font-size: 14px !important;
    letter-spacing: 1px;
    box-shadow: 0 12px 26px -8px rgba(41, 129, 255, .55);
    transition: all .35s cubic-bezier(.2, .7, .2, 1);
    position: relative;
    overflow: hidden;
}
.banner-single .banner-info .n-btn-default.active::after {
    content: "→";
    margin-left: 10px;
    display: inline-block;
    transition: transform .35s ease;
}
.banner-single .banner-info .n-btn-default.active:hover {
    transform: translateY(-3px);
    box-shadow: 0 22px 44px -10px rgba(41, 129, 255, .7), 0 0 32px rgba(34, 211, 238, .4);
    background: linear-gradient(135deg, #3a8eff 0%, #2dddee 100%) !important;
}
.banner-single .banner-info .n-btn-default.active:hover::after { transform: translateX(6px); }

/* =========================================================
   2. 锚点导航 .skip-box
   ========================================================= */
body:has(#section-sdk1) .skip-box {
    background: rgba(255, 255, 255, .85);
    backdrop-filter: blur(16px) saturate(170%);
    -webkit-backdrop-filter: blur(16px) saturate(170%);
    box-shadow: 0 8px 28px -14px rgba(15, 32, 68, .2);
    border-bottom: 1px solid rgba(41, 129, 255, .12);
    position: sticky;
    top: 0;
    z-index: 100;
}
body:has(#section-sdk1) .skip-box .swiper-wrapper {
    display: flex !important;
    justify-content: center !important;
    gap: 8px;
    padding: 0 !important;
    margin: 0 auto !important;
    list-style: none;
}
body:has(#section-sdk1) .skip-box .swiper-wrapper li {
    width: auto !important;
    padding: 0 !important;
    list-style: none;
    flex: 0 0 auto !important;
    height: auto !important;
}
body:has(#section-sdk1) .skip-box .swiper-wrapper li a {
    display: block;
    padding: 18px 28px !important;
    font-size: 15px !important;
    font-weight: 600;
    color: #475467 !important;
    border-bottom: 3px solid transparent;
    position: relative;
    transition: all .3s ease;
    letter-spacing: .5px;
    line-height: 1.4 !important;
    height: auto !important;
}
body:has(#section-sdk1) .skip-box .swiper-wrapper li a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -3px;
    width: 0;
    height: 3px;
    background: var(--ct-grad);
    border-radius: 3px;
    box-shadow: 0 2px 8px rgba(41, 129, 255, .45);
    transition: all .35s cubic-bezier(.2, .7, .2, 1);
    transform: translateX(-50%);
}
body:has(#section-sdk1) .skip-box .swiper-wrapper li:hover a,
body:has(#section-sdk1) .skip-box .swiper-wrapper li.on a,
body:has(#section-sdk1) .skip-box .swiper-wrapper li.swiper-slide-active a {
    color: #2981ff !important;
}
body:has(#section-sdk1) .skip-box .swiper-wrapper li:hover a::after,
body:has(#section-sdk1) .skip-box .swiper-wrapper li.on a::after,
body:has(#section-sdk1) .skip-box .swiper-wrapper li.swiper-slide-active a::after {
    width: 32px;
}

/* =========================================================
   3. Section 主容器
   ========================================================= */
.section-sdk1 {
    background: linear-gradient(180deg, #f7f9fc 0%, #eef3fa 60%, #ffffff 100%) !important;
    padding: 70px 0 80px !important;
    position: relative;
    overflow: hidden;
}
.section-sdk1::before {
    content: "";
    position: absolute;
    top: -120px; right: -120px;
    width: 480px; height: 480px;
    background: radial-gradient(circle, rgba(41, 129, 255, .12) 0%, transparent 70%);
    pointer-events: none;
}
.section-sdk1::after {
    content: "";
    position: absolute;
    bottom: -100px; left: -100px;
    width: 380px; height: 380px;
    background: radial-gradient(circle, rgba(139, 92, 246, .1) 0%, transparent 70%);
    pointer-events: none;
}

.section-sdk1 .section-header {
    text-align: center;
    margin-bottom: 50px !important;
    position: relative;
    z-index: 2;
}
.section-sdk1 .section-header h3 {
    display: inline-block;
    font-size: 36px !important;
    font-weight: 800 !important;
    line-height: 1.2 !important;
    color: #0f172a !important;
    position: relative;
    padding-bottom: 18px;
    letter-spacing: 1px;
    margin: 0 !important;
}
.section-sdk1 .section-header h3::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 56px;
    height: 4px;
    background: var(--ct-grad);
    border-radius: 4px;
    transform: translateX(-50%);
    box-shadow: 0 4px 12px rgba(41, 129, 255, .35);
}

/* =========================================================
   4. Section 1 · 3 个联系方式卡片（.section-colflex-3.is-row）
   ========================================================= */
.section-sdk1 .section-colflex-3.is-row {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px !important;
    list-style: none;
    padding: 0 !important;
    margin: 0 0 60px !important;
    position: relative;
    z-index: 2;
}
.section-sdk1 .section-colflex-3.is-row > * {
    width: auto !important;
    max-width: none !important;
    list-style: none;
}
.section-sdk1 .section-colflex-3.is-row li {
    background: rgba(255, 255, 255, .92) !important;
    border: 1px solid rgba(41, 129, 255, .12) !important;
    border-radius: var(--ct-radius) !important;
    box-shadow: var(--ct-shadow-soft) !important;
    transition: all .4s cubic-bezier(.2, .7, .2, 1) !important;
    backdrop-filter: blur(10px);
    overflow: hidden;
    position: relative;
}
.section-sdk1 .section-colflex-3.is-row li::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--ct-grad);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .4s ease;
}
.section-sdk1 .section-colflex-3.is-row li:hover {
    border-top: 1px solid rgba(41, 129, 255, .12) !important;
    transform: translateY(-8px);
    box-shadow: var(--ct-shadow-strong) !important;
    border-color: rgba(41, 129, 255, .35) !important;
}
.section-sdk1 .section-colflex-3.is-row li:hover::before {
    transform: scaleX(1);
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(2)::before {
    background: var(--ct-grad-violet);
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(3)::before {
    background: var(--ct-grad-cyan);
}

/* 卡片内部 */
.section-sdk1 .mod1_list_box {
    display: flex !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 14px !important;
    padding: 32px 28px !important;
}

/* SVG 图标盒子 */
.section-sdk1 .mod1_list_box > svg {
    flex: 0 0 auto;
    width: 56px !important;
    height: 56px !important;
    padding: 12px;
    background: var(--ct-grad);
    border-radius: 14px;
    box-shadow: 0 12px 24px -10px rgba(41, 129, 255, .55);
    transition: transform .35s ease, box-shadow .35s ease;
    box-sizing: content-box;
}
.section-sdk1 .mod1_list_box > svg path {
    fill: #fff !important;
}
/* 不同卡片不同色调图标 */
.section-sdk1 .section-colflex-3.is-row li:nth-child(2) .mod1_list_box > svg {
    background: var(--ct-grad-violet);
    box-shadow: 0 12px 24px -10px rgba(139, 92, 246, .55);
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(3) .mod1_list_box > svg {
    background: var(--ct-grad-cyan);
    box-shadow: 0 12px 24px -10px rgba(34, 211, 238, .55);
}
.section-sdk1 .section-colflex-3.is-row li:hover .mod1_list_box > svg {
    transform: scale(1.08) rotate(-6deg);
    box-shadow: 0 16px 32px -8px rgba(41, 129, 255, .65);
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(2):hover .mod1_list_box > svg {
    box-shadow: 0 16px 32px -8px rgba(139, 92, 246, .65);
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(3):hover .mod1_list_box > svg {
    box-shadow: 0 16px 32px -8px rgba(34, 211, 238, .65);
}

/* 标题 */
.section-sdk1 .m1_title {
    color: #0f172a !important;
    font-size: 22px !important;
    font-weight: 800 !important;
    line-height: 1.3 !important;
    letter-spacing: .5px;
    margin: 4px 0 0 !important;
}

/* 联系方式 / 工作时间 */
.section-sdk1 .m1_tel {
    color: #475467 !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    line-height: 22px !important;
    transition: color .25s ease;
    word-break: break-all;
}
.section-sdk1 a.m1_tel {
    color: #1d4ed8 !important;
}
.section-sdk1 a.m1_tel:hover {
    color: #22d3ee !important;
    text-decoration: underline;
}

/* 产品咨询按钮 */
.section-sdk1 .cpzx_btn {
    display: inline-flex !important;
    align-items: center;
    gap: 6px;
    padding: 10px 22px !important;
    margin-top: 8px;
    color: #fff !important;
    background: var(--ct-grad) !important;
    border: none !important;
    border-radius: 22px !important;
    font-size: 14px !important;
    font-weight: 600;
    letter-spacing: .5px;
    box-shadow: 0 8px 20px -8px rgba(41, 129, 255, .55);
    transition: all .3s ease;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    cursor: pointer;
    width: auto !important;
    line-height: 1.4 !important;
}
.section-sdk1 .cpzx_btn::before {
    content: "";
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .35), transparent);
    transition: left .55s ease;
}
.section-sdk1 .cpzx_btn:hover::before { left: 100%; }
.section-sdk1 .cpzx_btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px -8px rgba(41, 129, 255, .65);
    background: linear-gradient(135deg, #3a8eff 0%, #2dddee 100%) !important;
    color: #fff !important;
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(2) .cpzx_btn {
    background: var(--ct-grad-violet) !important;
    box-shadow: 0 8px 20px -8px rgba(139, 92, 246, .55);
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(2) .cpzx_btn:hover {
    background: linear-gradient(135deg, #9966ff 0%, #3a8eff 100%) !important;
    box-shadow: 0 12px 28px -8px rgba(139, 92, 246, .65);
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(3) .cpzx_btn {
    background: var(--ct-grad-cyan) !important;
    box-shadow: 0 8px 20px -8px rgba(34, 211, 238, .55);
}
.section-sdk1 .section-colflex-3.is-row li:nth-child(3) .cpzx_btn:hover {
    background: linear-gradient(135deg, #2dddee 0%, #14b8a6 100%) !important;
    box-shadow: 0 12px 28px -8px rgba(34, 211, 238, .65);
}

/* =========================================================
   5. box5 · 3 个服务卡片（保留原翻转交互，升级视觉）
   ========================================================= */
.section-sdk1 .box5 {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 24px !important;
    margin: 0 0 60px !important;
    width: 100% !important;
    overflow: visible !important;
    list-style: none;
    padding: 0 !important;
    position: relative;
    z-index: 2;
}
.section-sdk1 .box5 .box5_li {
    width: auto !important;
    height: 240px !important;
    padding: 36px 24px !important;
    background: rgba(255, 255, 255, .92) !important;
    border: 1px solid rgba(41, 129, 255, .15) !important;
    border-radius: var(--ct-radius) !important;
    text-align: center !important;
    position: relative !important;
    box-sizing: border-box;
    flex-shrink: 0;
    box-shadow: var(--ct-shadow-soft);
    overflow: hidden;
    transition: all .4s cubic-bezier(.2, .7, .2, 1);
    backdrop-filter: blur(10px);
    list-style: none;
}
.section-sdk1 .box5 .box5_li:hover {
    transform: translateY(-4px);
    border-color: transparent !important;
    box-shadow: var(--ct-shadow-strong) !important;
}
.section-sdk1 .box5 .show1 {
    transition: opacity .35s ease;
}
.section-sdk1 .box5 .show1 .icon img {
    width: 56px !important;
    height: 56px !important;
    object-fit: contain;
    transition: transform .4s ease;
    filter: drop-shadow(0 6px 14px rgba(41, 129, 255, .25));
}
.section-sdk1 .box5_li:hover .show1 .icon img {
    transform: scale(1.1);
}
.section-sdk1 .box5 li .show1 h6 {
    margin-top: 22px !important;
    margin-bottom: 12px !important;
    font-size: 18px !important;
    font-weight: 700 !important;
    color: #0f172a !important;
    letter-spacing: .5px;
}
.section-sdk1 .box5 li .show1 p {
    color: #475467 !important;
    font-size: 14px !important;
    line-height: 22px !important;
}
.section-sdk1 .box5 .hide1 {
    box-sizing: border-box;
    flex-shrink: 0;
    padding: 32px 24px !important;
    width: 100%;
    height: 100%;
    position: absolute !important;
    top: 240px;
    left: 0;
    background: linear-gradient(135deg, #1e6fff 0%, #2981ff 50%, #22d3ee 100%) !important;
    color: #fff !important;
    transition: top .5s cubic-bezier(.2, .7, .2, 1) !important;
    border-radius: var(--ct-radius);
    overflow: hidden;
}
.section-sdk1 .box5 .hide1::before {
    content: "";
    position: absolute;
    top: -50px; right: -50px;
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(255, 255, 255, .15) 0%, transparent 70%);
    pointer-events: none;
}
.section-sdk1 .box5 .hide1 h4 {
    font-size: 20px !important;
    font-weight: 700 !important;
    height: 36px !important;
    position: relative;
    margin: 0 0 16px 0 !important;
    text-align: center;
    color: #fff !important;
    letter-spacing: 1px;
}
.section-sdk1 .box5 h4::after {
    position: absolute;
    bottom: 0;
    left: 50% !important;
    margin-left: -22px !important;
    content: '';
    width: 44px !important;
    height: 2px !important;
    background-color: rgba(255, 255, 255, .8) !important;
    border-radius: 2px;
}
.section-sdk1 .box5 .hide1 p {
    color: rgba(255, 255, 255, .9) !important;
    font-size: 14px !important;
    line-height: 22px !important;
    margin-bottom: 12px !important;
    text-align: center;
}
.section-sdk1 .box5 .hide1 h5 {
    margin: 0 0 18px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    color: rgba(255, 255, 255, .95) !important;
    text-align: center;
    word-break: break-all;
    line-height: 1.6;
}
.section-sdk1 .box5 .talk {
    width: 140px !important;
    height: 38px !important;
    line-height: 38px !important;
    background: #fff !important;
    border-radius: 22px !important;
    position: absolute;
    bottom: 28px !important;
    left: 50%;
    margin-left: -70px !important;
    box-shadow: 0 8px 22px -6px rgba(0, 0, 0, .25);
    transition: all .3s ease;
}
.section-sdk1 .box5 .talk:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 28px -8px rgba(0, 0, 0, .35);
}
.section-sdk1 .box5 .talk a {
    display: block;
    width: 100%;
    height: 100%;
    color: #1d4ed8 !important;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 1px;
}

.section-sdk1 .box5 .box5_li:hover .hide1 {
    top: 0 !important;
    transition: top .5s cubic-bezier(.2, .7, .2, 1) !important;
}

/* 不同卡片用不同主题色 */
.section-sdk1 .box5 .box5_li:nth-child(2) .hide1 {
    background: linear-gradient(135deg, #6d28d9 0%, #8b5cf6 50%, #2981ff 100%) !important;
}
.section-sdk1 .box5 .box5_li:nth-child(2) .talk a { color: #6d28d9 !important; }
.section-sdk1 .box5 .box5_li:nth-child(3) .hide1 {
    background: linear-gradient(135deg, #0e7490 0%, #14b8a6 50%, #22d3ee 100%) !important;
}
.section-sdk1 .box5 .box5_li:nth-child(3) .talk a { color: #0e7490 !important; }

/* =========================================================
   6. mod2 · 联系信息大卡片
   ========================================================= */
.section-sdk1 .mod2 {
    display: flex !important;
    margin: 0 auto 40px !important;
    border-radius: var(--ct-radius);
    overflow: hidden;
    box-shadow: var(--ct-shadow-soft);
    position: relative;
    z-index: 2;
}
.section-sdk1 .mod2_left {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    background: linear-gradient(135deg, #1e6fff 0%, #2981ff 50%, #22d3ee 100%) !important;
    width: 80px !important;
    height: auto !important;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}
.section-sdk1 .mod2_left::before {
    content: "";
    position: absolute;
    top: -50px; right: -50px;
    width: 160px; height: 160px;
    background: radial-gradient(circle, rgba(255, 255, 255, .18) 0%, transparent 70%);
    pointer-events: none;
}
.section-sdk1 .mod2_left::after {
    content: "";
    position: absolute;
    bottom: -40px; left: -40px;
    width: 140px; height: 140px;
    background: radial-gradient(circle, rgba(255, 255, 255, .12) 0%, transparent 70%);
    pointer-events: none;
}
.section-sdk1 .mod2_left div {
    width: 30px;
    color: #fff;
    font-family: "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
    font-size: 22px !important;
    font-weight: 800 !important;
    line-height: 1.4 !important;
    letter-spacing: 6px;
    text-align: center;
    text-shadow: 0 2px 8px rgba(0, 0, 0, .25);
    writing-mode: vertical-rl;
    -webkit-writing-mode: vertical-rl;
    height: auto !important;
    position: relative;
    z-index: 1;
}
.section-sdk1 .mod2_right {
    width: auto !important;
    flex: 1;
    height: auto !important;
    flex-shrink: 0;
    background: rgba(255, 255, 255, .96) !important;
    box-shadow: none !important;
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    padding: 32px 40px !important;
    backdrop-filter: blur(10px);
    position: relative;
}
.section-sdk1 .mod2_right::before {
    content: "";
    position: absolute;
    top: 50%; right: -100px;
    width: 240px; height: 240px;
    background: radial-gradient(circle, rgba(41, 129, 255, .08) 0%, transparent 70%);
    transform: translateY(-50%);
    pointer-events: none;
}
.section-sdk1 .mod2_r_box {
    display: flex !important;
    align-items: center;
    justify-content: space-between !important;
    gap: 32px !important;
    width: 100%;
    position: relative;
    z-index: 1;
}
.section-sdk1 .mod2_r_l {
    display: flex !important;
    flex: 1;
    width: auto !important;
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 16px !important;
}
.section-sdk1 .m2_l_top {
    color: #0f172a !important;
    font-family: "Microsoft YaHei", sans-serif;
    font-size: 16px !important;
    font-weight: 700 !important;
    line-height: 1.4 !important;
    display: flex;
    align-items: baseline;
    gap: 12px;
}
.section-sdk1 .m2_l_top span {
    color: #1d4ed8 !important;
    font-size: 32px !important;
    font-weight: 900 !important;
    line-height: 1.2 !important;
    background: linear-gradient(135deg, #1d4ed8 0%, #22d3ee 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: .5px;
}
.section-sdk1 .m2_r_ft {
    color: #475467 !important;
    font-family: "PingFang SC", sans-serif;
    font-size: 14px !important;
    font-weight: 400 !important;
    line-height: 26px !important;
}
.section-sdk1 .m2_r_ft p {
    margin: 0 0 6px !important;
}
.section-sdk1 .m2_r_ft p:last-child {
    color: #6b7280 !important;
    font-size: 13px !important;
    line-height: 22px !important;
    margin-top: 8px !important;
}
.section-sdk1 .mod2_r_r {
    display: flex !important;
    width: 200px !important;
    flex-direction: column !important;
    justify-content: center !important;
    align-items: center !important;
    align-self: stretch;
    gap: 16px;
    padding: 12px;
    background: linear-gradient(135deg, rgba(41, 129, 255, .06) 0%, rgba(34, 211, 238, .08) 100%);
    border-radius: 14px;
    border: 1px solid rgba(41, 129, 255, .15);
}
.section-sdk1 .mod2_r_r > svg {
    width: 64px !important;
    height: 64px !important;
    flex: 0 0 auto;
}
.section-sdk1 .mod2_r_r > svg path {
    fill: #2981ff !important;
}
.section-sdk1 .mod2_r_r .cpzx_btn {
    width: 100%;
    justify-content: center;
}

/* =========================================================
   7. 地图 + 标题
   ========================================================= */
.section-sdk1 #map1,
.section-sdk1 #map {
    width: 100% !important;
    height: 480px !important;
    border: 1px solid rgba(41, 129, 255, .15) !important;
    border-radius: var(--ct-radius) !important;
    margin: 30px 0 0 !important;
    box-shadow: var(--ct-shadow-soft);
    overflow: hidden;
    position: relative;
    z-index: 2;
}

/* =========================================================
   8. 滚动揭示动画
   ========================================================= */
.ct-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1);
}
.ct-reveal.ct-revealed {
    opacity: 1;
    transform: translateY(0);
}

/* 卡片交错出现 */
.section-sdk1 .section-colflex-3.is-row > li {
    opacity: 0;
    transform: translateY(24px);
    animation: ct-cardFadeIn .6s cubic-bezier(.2, .7, .2, 1) forwards;
}
.section-sdk1 .section-colflex-3.is-row > li:nth-child(1) { animation-delay: .05s; }
.section-sdk1 .section-colflex-3.is-row > li:nth-child(2) { animation-delay: .15s; }
.section-sdk1 .section-colflex-3.is-row > li:nth-child(3) { animation-delay: .25s; }

.section-sdk1 .box5 > .box5_li {
    opacity: 0;
    transform: translateY(24px);
    animation: ct-cardFadeIn .6s cubic-bezier(.2, .7, .2, 1) forwards;
}
.section-sdk1 .box5 > .box5_li:nth-child(1) { animation-delay: .35s; }
.section-sdk1 .box5 > .box5_li:nth-child(2) { animation-delay: .45s; }
.section-sdk1 .box5 > .box5_li:nth-child(3) { animation-delay: .55s; }

@keyframes ct-cardFadeIn {
    to { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   9. 响应式
   ========================================================= */
@media screen and (max-width: 1440px) {
    .section-sdk1 .section-header h3 { font-size: 30px !important; }
    .banner-single .banner-info .ct-h2-main { font-size: 42px !important; }
    .banner-single .banner-info .ct-h2-sub { font-size: 18px !important; }
    .section-sdk1 .m2_l_top span { font-size: 28px !important; }
}

@media screen and (max-width: 1023px) {
    body:has(#section-sdk1) .skip-box { position: static; }
    .section-sdk1 .section-header h3 { font-size: 22px !important; }
    .section-sdk1 { padding: 40px 0 50px !important; }

    .banner-single .banner-info .ct-banner-tag { font-size: 11px !important; padding: 4px 12px !important; margin-bottom: 12px !important; }
    .banner-single .banner-info .ct-h2-main { font-size: 28px !important; letter-spacing: 0.5px !important; }
    .banner-single .banner-info .ct-h2-sub { font-size: 16px !important; }
    .banner-single .banner-info .ct-h2-sub::before { height: 7px; bottom: 2px; }
    .banner-single .banner-info .ct-feature-tags { gap: 6px !important; margin-top: 14px !important; }
    .banner-single .banner-info .ct-feature-tags li { font-size: 11px !important; padding: 4px 10px !important; }
    .banner-single .banner-info > p { font-size: 13px !important; line-height: 22px !important; }

    .section-sdk1 .section-colflex-3.is-row { grid-template-columns: 1fr !important; gap: 16px !important; margin-bottom: 36px !important; }
    .section-sdk1 .mod1_list_box { padding: 24px 20px !important; }

    .section-sdk1 .box5 { grid-template-columns: 1fr !important; gap: 16px !important; margin-bottom: 36px !important; }

    .section-sdk1 .mod2 { flex-direction: column; }
    .section-sdk1 .mod2_left { width: 100% !important; height: 60px !important; }
    .section-sdk1 .mod2_left div { writing-mode: horizontal-tb; -webkit-writing-mode: horizontal-tb; height: auto !important; width: auto; letter-spacing: 4px; }
    .section-sdk1 .mod2_r_box { flex-direction: column; gap: 18px !important; }
    .section-sdk1 .mod2_r_l { width: 100% !important; }
    .section-sdk1 .mod2_r_r { width: 100% !important; padding: 16px; }
    .section-sdk1 .mod2_right { padding: 24px 20px !important; }
    .section-sdk1 .m2_l_top span { font-size: 22px !important; }
    .section-sdk1 .m2_l_top { flex-direction: column; gap: 4px; align-items: flex-start; }

    .section-sdk1 #map1, .section-sdk1 #map { height: 280px !important; margin: 18px 0 0 !important; }
}