/* 殇痕画质助手 shhzzszb —— 晴白·天空蓝 */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: #f5fafd;
    color: #17324a;
    line-height: 1.6;
}

img {
    max-width: 100%;
}

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

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

.szbct {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 顶栏 */
.szbhd {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(43, 147, 232, 0.14);
}

.szbhd.on {
    box-shadow: 0 8px 26px rgba(20, 70, 130, 0.1);
}

.szbhb {
    display: flex;
    align-items: center;
    gap: 26px;
    height: 66px;
}

.szblg {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
}

.szblg img {
    width: 34px;
    height: 34px;
    border-radius: 50%;
}

.szbnv {
    display: flex;
    gap: 24px;
    margin-left: auto;
}

.szbnv a {
    font-size: 14.5px;
    color: #4d6780;
    transition: color 0.2s;
}

.szbnv a:hover {
    color: #1f7fd1;
}

.szbtp {
    padding: 9px 20px;
    border-radius: 999px;
    background: linear-gradient(135deg, #4db5f5, #2b93e8);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 8px 20px rgba(43, 147, 232, 0.32);
    transition: transform 0.2s, box-shadow 0.2s;
}

.szbtp:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(43, 147, 232, 0.42);
}

.szbmg {
    display: none;
    font-size: 24px;
    color: #17324a;
    margin-left: auto;
}

/* 抽屉 */
.szbdk {
    position: fixed;
    top: 0;
    right: -300px;
    width: 280px;
    height: 100vh;
    background: #fff;
    z-index: 90;
    padding: 22px 20px;
    transition: right 0.32s ease;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: -12px 0 40px rgba(15, 50, 90, 0.18);
}

.szbdk.on {
    right: 0;
}

.szbdt {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 16px;
}

.szbdt img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.szbdx {
    margin-left: auto;
    font-size: 22px;
    color: #6b8299;
}

.szbdk > a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 10px;
    border-radius: 12px;
    font-size: 15px;
    color: #2c4a66;
}

.szbdk > a i {
    font-size: 18px;
    color: #2b93e8;
}

.szbdk > a:hover {
    background: #eaf5fd;
}

.szbdbt {
    margin-top: 14px;
    justify-content: center;
    background: linear-gradient(135deg, #4db5f5, #2b93e8) !important;
    color: #fff !important;
    font-weight: 600;
    border-radius: 999px !important;
}

.szbmsk {
    position: fixed;
    inset: 0;
    background: rgba(10, 40, 70, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s;
    z-index: 80;
}

.szbmsk.on {
    opacity: 1;
    visibility: visible;
}

/* Hero：左文字右样机 */
.szbhp {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(640px 420px at 88% 30%, rgba(77, 181, 245, 0.18), transparent 70%),
        radial-gradient(520px 380px at 6% 12%, rgba(43, 147, 232, 0.1), transparent 70%),
        #f5fafd;
}

.szbhw {
    display: flex;
    align-items: center;
    gap: 48px;
    padding-top: 64px;
    padding-bottom: 78px;
}

.szbtl {
    flex: 1.05;
}

.szbtr {
    flex: 0.95;
    display: flex;
    justify-content: center;
}

.szbtb {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 16px;
    border-radius: 999px;
    background: #fff;
    border: 1px solid rgba(43, 147, 232, 0.3);
    color: #1f7fd1;
    font-size: 13.5px;
    font-weight: 600;
    box-shadow: 0 6px 16px rgba(30, 100, 180, 0.1);
}

.szbht {
    margin-top: 18px;
    font-size: 44px;
    line-height: 1.28;
    letter-spacing: 0.5px;
}

.szbhg {
    background: linear-gradient(120deg, #2b93e8, #1f5fc9);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.szble {
    margin-top: 16px;
    font-size: 16.5px;
    color: #56718a;
    max-width: 480px;
}

.szbbtn {
    display: flex;
    gap: 14px;
    margin-top: 28px;
}

.szbgo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    padding: 14px 32px;
    border-radius: 999px;
    background: linear-gradient(135deg, #4db5f5, #2b93e8);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 0 14px 30px rgba(43, 147, 232, 0.36);
    transition: transform 0.2s, box-shadow 0.2s;
}

.szbgo:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 36px rgba(43, 147, 232, 0.46);
}

.szbsee {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 999px;
    border: 1.5px solid rgba(43, 147, 232, 0.42);
    color: #2c5f96;
    font-size: 15.5px;
    font-weight: 600;
    transition: background 0.2s;
}

.szbsee:hover {
    background: rgba(43, 147, 232, 0.08);
}

.szbtd {
    display: flex;
    gap: 40px;
    margin-top: 34px;
}

.szbtd b {
    display: block;
    font-size: 26px;
    background: linear-gradient(120deg, #2b93e8, #1f5fc9);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.szbtd span {
    font-size: 13px;
    color: #7a90a6;
}

/* Hero 样机 */
.szbph {
    position: relative;
    width: 300px;
}

.szbph::before {
    content: "";
    position: absolute;
    inset: 8% -14%;
    background: radial-gradient(closest-side, rgba(77, 181, 245, 0.32), transparent 72%);
    z-index: 0;
}

.szbpm {
    position: relative;
    z-index: 1;
    width: 288px;
    margin: 0 auto;
    border-radius: 38px;
    border: 8px solid #274a68;
    background: #122a42;
    box-shadow: 0 34px 70px rgba(20, 70, 130, 0.34), inset 0 0 0 2px rgba(255, 255, 255, 0.16);
    transform: rotate(3deg);
}

.szbpm img {
    display: block;
    width: 100%;
    border-radius: 30px;
}

.szbpm::before {
    content: "";
    position: absolute;
    top: 13px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #0a1c2e;
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.5), inset 0 0 2px rgba(140, 200, 255, 0.75);
    z-index: 2;
}

.szbpm::after {
    content: "";
    position: absolute;
    left: -11px;
    top: 82px;
    width: 4px;
    height: 34px;
    border-radius: 3px;
    background: #274a68;
    box-shadow: 0 46px 0 0 #1d3a55;
    z-index: 3;
}

.szbpc,
.szbpn {
    position: absolute;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 13px 17px;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 16px 38px rgba(20, 70, 130, 0.2);
}

.szbpc i,
.szbpn i {
    font-size: 26px;
    color: #2b93e8;
}

.szbpc b,
.szbpn b {
    display: block;
    font-size: 13.5px;
}

.szbpc span,
.szbpn span {
    font-size: 12px;
    color: #7a90a6;
}

.szbpc {
    right: -44px;
    bottom: 34px;
}

.szbpn {
    left: -40px;
    top: 44px;
}

/* 通用段落 */
.szbsec {
    padding: 74px 0;
}

.szbalt {
    background: #fff;
    border-top: 1px solid rgba(43, 147, 232, 0.09);
    border-bottom: 1px solid rgba(43, 147, 232, 0.09);
}

.szbth {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 25px;
    font-weight: 700;
}

.szbth i {
    color: #2b93e8;
}

.szbtx {
    margin-top: 8px;
    color: #6b8299;
    font-size: 15px;
}

/* 产品展示：PC 一行 4 张 */
.szbsw {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-top: 34px;
}

.szbsi {
    background: #fff;
    border: 1px solid rgba(43, 147, 232, 0.14);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 28px rgba(20, 70, 130, 0.08);
    transition: transform 0.25s, box-shadow 0.25s;
}

.szbsi:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 40px rgba(20, 70, 130, 0.14);
}

.szbsim {
    height: 300px;
    overflow: hidden;
}

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

.szbsb {
    padding: 15px 16px 19px;
}

.szbsl {
    display: inline-block;
    padding: 3.5px 12px;
    border-radius: 999px;
    background: rgba(43, 147, 232, 0.1);
    color: #1f7fd1;
    font-size: 12px;
    font-weight: 600;
}

.szbsb b {
    display: block;
    margin-top: 9px;
    font-size: 16.5px;
}

.szbsb p {
    margin-top: 7px;
    font-size: 13px;
    color: #6b8299;
}

/* 产品优势 */
.szbaw {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 34px;
}

.szbaa {
    display: flex;
    gap: 15px;
    padding: 22px 20px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(43, 147, 232, 0.14);
    box-shadow: 0 8px 24px rgba(20, 70, 130, 0.07);
}

.szbai {
    flex: 0 0 46px;
    height: 46px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: linear-gradient(135deg, #4db5f5, #2b93e8);
    color: #fff;
    font-size: 22px;
    box-shadow: 0 8px 18px rgba(43, 147, 232, 0.3);
}

.szbaa b {
    font-size: 16px;
}

.szbaa p {
    margin-top: 6px;
    font-size: 13.5px;
    color: #6b8299;
}

/* 下载中心 */
.szbdw {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 34px;
}

.szbda {
    position: relative;
    padding: 22px 20px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(43, 147, 232, 0.14);
    box-shadow: 0 8px 24px rgba(20, 70, 130, 0.07);
    display: flex;
    flex-direction: column;
}

.szbdj {
    position: absolute;
    top: 14px;
    right: 14px;
    padding: 3px 11px;
    border-radius: 999px;
    background: linear-gradient(120deg, #ff5f8f, #ff8f66);
    color: #fff;
    font-size: 11.5px;
    font-weight: 700;
}

.szbdi {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: rgba(43, 147, 232, 0.1);
    color: #1f7fd1;
    font-size: 22px;
}

.szbda b {
    margin-top: 13px;
    font-size: 15.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.szbda em {
    font-style: normal;
    margin-top: 3px;
    font-size: 12.5px;
    color: #1f7fd1;
    font-weight: 600;
}

.szbds {
    margin-top: 5px;
    font-size: 12.5px;
    color: #8497a9;
}

.szbda a {
    margin-top: 15px;
    padding: 10px 0;
    border-radius: 999px;
    text-align: center;
    background: linear-gradient(135deg, #4db5f5, #2b93e8);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    transition: opacity 0.2s;
}

.szbda a:hover {
    opacity: 0.9;
}

/* 使用流程 */
.szbfw {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-top: 34px;
}

.szbfo {
    position: relative;
    padding: 24px 20px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(43, 147, 232, 0.14);
    box-shadow: 0 8px 24px rgba(20, 70, 130, 0.07);
}

.szbfn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 13px;
    background: linear-gradient(135deg, #4db5f5, #2b93e8);
    color: #fff;
    font-size: 17px;
    font-weight: 800;
    box-shadow: 0 8px 18px rgba(43, 147, 232, 0.3);
}

.szbfo b {
    display: block;
    margin-top: 14px;
    font-size: 16px;
}

.szbfo p {
    margin-top: 7px;
    font-size: 13.5px;
    color: #6b8299;
}

.szbftm {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 13px;
    font-size: 12.5px;
    color: #8497a9;
}

/* FAQ */
.szbfqw {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 34px;
    align-items: start;
}

.szbfi {
    background: #fff;
    border: 1px solid rgba(43, 147, 232, 0.14);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(20, 70, 130, 0.06);
}

.szbfq {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 17px 18px;
    font-size: 15px;
    font-weight: 600;
    text-align: left;
    color: #1e3a55;
}

.szbfqg {
    flex: 0 0 auto;
    padding: 2px 9px;
    border-radius: 8px;
    background: rgba(43, 147, 232, 0.1);
    color: #1f7fd1;
    font-size: 12.5px;
}

.szbfq i {
    margin-left: auto;
    color: #8497a9;
    transition: transform 0.3s;
}

.szbfi.on .szbfq i {
    transform: rotate(180deg);
}

.szbfa {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.szbfa p {
    padding: 0 18px 17px 58px;
    font-size: 13.5px;
    color: #6b8299;
}

/* 产品资讯 */
.szbnw {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 34px;
}

.szbni {
    padding: 20px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(43, 147, 232, 0.14);
    box-shadow: 0 8px 24px rgba(20, 70, 130, 0.07);
}

.szbnd {
    display: inline-block;
    padding: 3px 11px;
    border-radius: 999px;
    background: rgba(31, 127, 209, 0.1);
    color: #1f7fd1;
    font-size: 12.5px;
    font-weight: 700;
}

.szbni b {
    display: block;
    margin-top: 11px;
    font-size: 15.5px;
}

.szbni p {
    margin-top: 7px;
    font-size: 13.5px;
    color: #6b8299;
}

/* 用户评价 */
.szbcw {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 34px;
}

.szbca {
    padding: 20px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid rgba(43, 147, 232, 0.14);
    box-shadow: 0 8px 24px rgba(20, 70, 130, 0.07);
}

.szbcs {
    color: #ffb02e;
    font-size: 15px;
    display: flex;
    gap: 2px;
}

.szbca p {
    margin-top: 11px;
    font-size: 14px;
    color: #3a5470;
}

.szbcu {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-top: 14px;
    font-size: 13px;
    color: #8497a9;
}

.szbcv {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, #4db5f5, #2b93e8);
    color: #fff;
    font-size: 13px;
}

/* 页脚 */
.szbft {
    background: #0f2740;
    color: #c3d4e4;
    padding: 54px 0 0;
}

.szbfg {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 30px;
    padding-bottom: 38px;
}

.szbfm img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.szbfm b {
    display: block;
    margin-top: 12px;
    color: #fff;
    font-size: 17px;
}

.szbfm p {
    margin-top: 9px;
    font-size: 13.5px;
    color: #8ba4bd;
    max-width: 300px;
}

.szbfl b {
    display: block;
    color: #fff;
    font-size: 15px;
    margin-bottom: 13px;
}

.szbfl a {
    display: block;
    font-size: 13.5px;
    color: #8ba4bd;
    margin-bottom: 9px;
    transition: color 0.2s;
}

.szbfl a:hover {
    color: #7cc4f7;
}

.szbcpy {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 18px 0;
    text-align: center;
    font-size: 12.5px;
    color: #6d89a5;
}

/* 移动端 */
@media (max-width: 767px) {
    .szbnv,
    .szbtp {
        display: none;
    }

    .szbmg {
        display: block;
    }

    .szbhb {
        height: 58px;
    }

    .szbhw {
        flex-direction: column;
        gap: 40px;
        padding: 40px 16px 56px;
    }

    .szbht {
        font-size: 29px;
    }

    .szble {
        font-size: 14.5px;
    }

    .szbbtn {
        flex-direction: column;
    }

    .szbgo {
        width: 100%;
        padding: 14px 0;
    }

    .szbsee {
        display: none;
    }

    .szbtd {
        gap: 26px;
    }

    .szbtd b {
        font-size: 22px;
    }

    .szbtr {
        width: 100%;
        justify-content: center;
    }

    .szbpc {
        right: -6px;
        bottom: 18px;
        padding: 10px 13px;
    }

    .szbpn {
        left: -6px;
        top: 26px;
        padding: 10px 13px;
    }

    .szbpc b,
    .szbpn b {
        font-size: 12.5px;
    }

    .szbpc span,
    .szbpn span {
        font-size: 11px;
    }

    .szbsec {
        padding: 52px 0;
    }

    .szbth {
        font-size: 21px;
    }

    .szbth i {
        font-size: 22px;
    }

    /* 产品展示：横向滑动 */
    .szbsw {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 14px;
        margin: 26px -16px 0;
        padding: 4px 16px 12px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .szbsw::-webkit-scrollbar {
        display: none;
    }

    .szbsi {
        flex: 0 0 240px;
        scroll-snap-align: start;
    }

    .szbsim {
        height: 260px;
    }

    .szbaw,
    .szbdw,
    .szbnw,
    .szbcw {
        grid-template-columns: 1fr;
        gap: 14px;
        margin-top: 26px;
    }

    .szbfw {
        grid-template-columns: 1fr;
        gap: 14px;
        margin-top: 26px;
    }

    .szbfqw {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .szbfa p {
        padding-left: 18px;
    }

    .szbfg {
        grid-template-columns: 1fr;
        gap: 24px;
        padding-bottom: 28px;
    }
}