/* ===== 全局基础：蓝白沉浸分屏风 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
    background: #FFFFFF;
    color: #2D2418;
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

.mcap { width: 1200px; max-width: 96%; margin: 0 auto; }

/* 通用按钮 */
.mcdb {
    display: inline-flex; align-items: center; gap: 6px;
    background: #FF6600; color: #FFFFFF;
    padding: 14px 32px; border-radius: 10px;
    font-weight: 700; font-size: 15px;
    border: 1px solid #FF6600;
    transition: all 0.25s ease;
}
.mcdb:hover { background: #E85D04; border-color: #E85D04; }
.mcdb i { font-size: 18px; }
/* hero 区下载按钮：白底橙字 */
.mchero-left .mcdb {
    background: #FFFFFF; color: #FF6600;
    border: 1px solid #FFFFFF;
}
.mchero-left .mcdb:hover {
    background: #FFF8F0; color: #E85D04; border-color: #FFF8F0;
}
.mclnk {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(255,255,255,0.1); color: #FFFFFF;
    padding: 14px 32px; border-radius: 10px;
    font-weight: 700; font-size: 15px;
    border: 1px solid rgba(255,255,255,0.4);
    transition: all 0.25s ease;
}
.mclnk:hover { background: #FFFFFF; color: #FF6600; border-color: #FFFFFF; }

/* ===== 头部 ===== */
.mchd {
    position: sticky; top: 0; z-index: 100;
    background: #FFFFFF;
    border-bottom: 1px solid #FFD9B3;
}
.mcbox {
    display: flex; align-items: center; justify-content: space-between;
    height: 70px; gap: 24px;
}
.mclg {
    display: flex; align-items: center; gap: 8px;
    color: #2D2418;
}
.mclg img {
    width: 40px; height: 40px; border-radius: 10px;
    border: 1px solid #FFD9B3;
    object-fit: cover;
}
.mclg span {
    font-size: 20px; font-weight: 800;
    letter-spacing: 1px; color: #FF6600;
}
.mclg em {
    font-style: normal; font-size: 11px;
    color: #FFFFFF; font-weight: 700;
    padding: 3px 10px; background: #FF6600;
    border-radius: 6px;
}
.mcnv { display: flex; gap: 2px; flex: 1; justify-content: center; }
.mcnv a {
    padding: 8px 14px; font-size: 15px;
    color: #5C4A38; border-radius: 8px;
    transition: all 0.25s ease; font-weight: 600;
}
.mcnv a:hover { color: #FF6600; background: #FFF8F0; }
.mcrt { display: flex; align-items: center; gap: 12px; }
.mcmenu { display: none; color: #FF6600; font-size: 26px; padding: 4px; }
.mcmnv {
    display: none; flex-direction: column; gap: 4px;
    padding: 12px 20px 20px;
    background: #FFFFFF; border-top: 1px solid #FF6600;
}
.mcmnv a {
    color: #5C4A38; padding: 10px 12px;
    border-radius: 8px; font-size: 15px;
    border-bottom: 1px dashed #FFD9B3;
}
.mcmnv a:hover { color: #FF6600; }
.mcmnv .mcdb { color: #FFFFFF; justify-content: center; margin-top: 8px; }

/* ===== 主视觉：左右分屏（背景全屏+内容1200px） ===== */
.mchero {
    position: relative; overflow: hidden;
    min-height: 560px; display: flex; align-items: stretch;
}
.mchero-bg-left {
    position: absolute; top: 0; left: 0;
    width: 55%; height: 100%;
    background: #FF6600;
}
.mchero-bg-left::before {
    content: ""; position: absolute; top: -80px; right: -80px;
    width: 280px; height: 280px;
    border: 2px solid rgba(255,255,255,0.1);
    border-radius: 50%;
}
.mchero-bg-left::after {
    content: ""; position: absolute; bottom: -50px; left: -50px;
    width: 200px; height: 200px;
    border: 2px solid rgba(255,255,255,0.08);
    border-radius: 50%;
}
.mchero-bg-right {
    position: absolute; top: 0; right: 0;
    width: 45%; height: 100%;
    background: #FFF8F0;
}
.mchero-bg-right::before {
    content: ""; position: absolute; top: 30px; left: 30px;
    width: 120px; height: 120px;
    background-image: radial-gradient(circle, #FF6600 2px, transparent 2px);
    background-size: 14px 14px; opacity: 0.15;
}
.mchero-inner {
    position: relative; z-index: 1;
    display: flex; align-items: center;
    padding: 60px 0;
}
.mchero-left {
    flex: 1.1; padding-right: 40px;
}
.mchero-right {
    flex: 0.9; display: flex; align-items: center; justify-content: center;
}
.mcseal {
    display: inline-flex; align-items: center; gap: 8px;
    color: #FFFFFF; font-size: 12px;
    padding: 7px 16px;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 8px;
    margin-bottom: 20px; letter-spacing: 2px; font-weight: 700;
}
.mcseal i { color: #FFB380; }
.mchero-left h1 {
    font-size: 80px; color: #FFFFFF;
    letter-spacing: 2px; line-height: 1.05;
    margin-bottom: 16px; font-weight: 900;
    display: block; position: relative;
}
.mchero-left h1::after {
    content: ""; display: block;
    width: 80px; height: 4px;
    background: #FFB380; margin-top: 14px; border-radius: 2px;
}
.mc-sub {
    font-size: 19px; color: #FFD9B3;
    letter-spacing: 2px; margin-bottom: 22px; font-weight: 600;
}
.mc-desc {
    color: #FFD9B3; font-size: 15px;
    max-width: 480px; margin-bottom: 30px;
    line-height: 1.9;
    padding: 16px 20px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px; border-left: 4px solid #FFB380;
}
.mcbtn { display: flex; gap: 14px; margin-bottom: 36px; flex-wrap: wrap; }
.mc-data { display: flex; gap: 40px; }
.mc-data-item { display: flex; flex-direction: column; }
.mc-data-item b {
    font-size: 28px; color: #FFFFFF;
    font-weight: 900; line-height: 1;
}
.mc-data-item span { font-size: 12px; color: #FFB380; margin-top: 6px; }

/* hero 右侧 mockup */
.mc-mockup-wrap {
    position: relative; width: 340px; height: 460px;
}
.mc-phone {
    position: absolute; border: 3px solid #FFFFFF;
    border-radius: 22px; background: #FFFFFF;
    padding: 8px; overflow: hidden;
}
.mc-phone-bar {
    display: block; width: 100%; height: 10px;
    background: #FF6600; border-radius: 2px; margin-bottom: 6px;
}
.mc-phone img {
    width: 100%; height: calc(100% - 16px);
    object-fit: cover; border-radius: 14px;
}
.mc-phone-main {
    width: 240px; height: 460px;
    top: 0; left: 50px; z-index: 2;
    border-color: #FF6600;
}
.mc-phone-sub {
    width: 200px; height: 380px;
    top: 40px; left: 0; z-index: 1;
    transform: rotate(-6deg);
    border-color: #FFB380;
}
.mc-float-tag {
    position: absolute;
    background: #FF6600; color: #FFFFFF;
    padding: 8px 16px; border-radius: 10px;
    font-size: 13px; font-weight: 700;
    border: 2px solid #FFFFFF; z-index: 3;
    display: inline-flex; align-items: center; gap: 6px;
}
.mc-tag-a { top: 20px; right: -10px; transform: rotate(5deg); }
.mc-tag-b {
    bottom: 40px; left: -20px; transform: rotate(-3deg);
    background: #FFFFFF; color: #FF6600; border-color: #FF6600;
}

/* ===== 通用 section ===== */
.mcse { padding: 64px 0; }
.mcbe { background: #FFF8F0; }
.mctt {
    margin-bottom: 44px;
    display: flex; align-items: center; gap: 16px;
}
.mcno {
    font-size: 48px; font-weight: 900;
    color: #FFD9B3; line-height: 1;
    letter-spacing: 1px;
}
.mctt-r { display: flex; flex-direction: column; gap: 4px; }
.mctx {
    font-size: 28px; color: #2D2418;
    letter-spacing: 3px; font-weight: 800; line-height: 1;
}
.mcver {
    font-size: 12px; color: #FF6600;
    letter-spacing: 3px; font-weight: 700;
}

/* ===== 产品展示：书架卡片 ===== */
.mcshelf {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.mcshelf-item {
    background: #FFFFFF; border: 1px solid #FFD9B3;
    border-radius: 14px; overflow: hidden;
    transition: all 0.3s ease; position: relative;
}
.mcshelf-item::before {
    content: ""; position: absolute; top: 0; left: 0; right: 0;
    height: 3px; background: #FF6600; z-index: 2;
}
.mcshelf-item:hover { border-color: #FF6600; transform: translateY(-4px); }
.mcshelf-img { width: 100%; height: 240px; overflow: hidden; }
.mcshelf-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s ease; }
.mcshelf-item:hover .mcshelf-img img { transform: scale(1.04); }
.mcshelf-cap {
    padding: 14px; text-align: center;
    color: #2D2418; font-size: 16px; font-weight: 700;
    letter-spacing: 1px; border-top: 1px solid #FFD9B3;
    display: flex; align-items: center; justify-content: center; gap: 8px;
}
.mcshelf-cap i { font-size: 18px; color: #FF6600; }

/* ===== 优势亮点：左右交替 ===== */
.mcadv { display: flex; flex-direction: column; gap: 20px; }
.mcadv-row {
    display: flex; align-items: center; gap: 24px;
    background: #FFFFFF; border: 1px solid #FFD9B3;
    border-radius: 14px; padding: 28px 32px;
    transition: all 0.3s ease;
}
.mcadv-row:hover { border-color: #FF6600; }
.mcadv-left { flex-direction: row; }
.mcadv-right { flex-direction: row-reverse; text-align: right; }
.mcadv-icon {
    width: 64px; height: 64px; border-radius: 16px;
    background: #FFF8F0; color: #FF6600;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; border: 1px solid #FF6600;
    flex-shrink: 0;
}
.mcadv-row:hover .mcadv-icon { background: #FF6600; color: #FFFFFF; }
.mcadv-body { flex: 1; }
.mcadv-num {
    font-size: 14px; color: #FF6600; font-weight: 800;
    letter-spacing: 2px; margin-bottom: 4px;
}
.mcadv-t {
    font-size: 20px; font-weight: 700; color: #2D2418;
    margin-bottom: 8px; letter-spacing: 1px;
}
.mcadv-d { font-size: 14px; color: #5C4A38; line-height: 1.8; }

/* ===== 下载中心：大按钮列表 ===== */
.mcdl-list { display: flex; flex-direction: column; gap: 12px; }
.mcdl-row {
    display: flex; align-items: center; gap: 20px;
    background: #FFFFFF; border: 1px solid #FFD9B3;
    border-radius: 12px; padding: 20px 28px;
    transition: all 0.25s ease;
}
.mcdl-row:hover { border-color: #FF6600; background: #FFF8F0; }
.mcdl-ico {
    width: 48px; height: 48px; border-radius: 12px;
    background: #FF6600; color: #FFFFFF;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; flex-shrink: 0;
}
.mcdl-info { flex: 1; }
.mcdl-t { font-size: 17px; font-weight: 700; color: #2D2418; margin-bottom: 4px; }
.mcdl-b { font-size: 13px; color: #5C4A38; }
.mcdl-go {
    display: inline-flex; align-items: center; gap: 6px;
    background: #FF6600; color: #FFFFFF;
    padding: 10px 22px; border-radius: 8px;
    font-weight: 700; font-size: 14px;
    border: 1px solid #FF6600;
    transition: all 0.25s ease; flex-shrink: 0;
}
.mcdl-row:hover .mcdl-go { background: #E85D04; border-color: #E85D04; }

/* ===== 使用流程：纵向时间线 ===== */
.mctimeline { position: relative; padding-left: 40px; }
.mctl-line {
    position: absolute; left: 31px; top: 20px; bottom: 20px;
    width: 2px; background: #FFD9B3;
}
.mctl-item {
    display: flex; gap: 24px; margin-bottom: 32px;
    position: relative;
}
.mctl-item:last-child { margin-bottom: 0; }
.mctl-dot {
    width: 56px; height: 56px; border-radius: 50%;
    background: #FFFFFF; color: #FF6600;
    display: flex; align-items: center; justify-content: center;
    font-size: 24px; border: 2px solid #FF6600;
    flex-shrink: 0; z-index: 1; margin-left: -44px;
}
.mctl-body { flex: 1; padding-top: 4px; }
.mctl-num {
    font-size: 12px; color: #FF6600; font-weight: 800;
    letter-spacing: 2px; margin-bottom: 6px;
}
.mctl-t { font-size: 20px; font-weight: 700; color: #2D2418; margin-bottom: 8px; }
.mctl-d { font-size: 14px; color: #5C4A38; line-height: 1.8; }

/* ===== 常见问题：左右两列 ===== */
.mcfaq {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.mcfaq-col { display: flex; flex-direction: column; gap: 12px; }
.mcfaq-item {
    background: #FFFFFF; border: 1px solid #FFD9B3;
    border-left: 4px solid #FFD9B3;
    border-radius: 8px; overflow: hidden;
    transition: all 0.25s ease;
}
.mcfaq-item:hover { border-color: #FF6600; border-left-color: #FF6600; }
.mcfaq-q {
    padding: 16px 20px;
    display: flex; align-items: center; gap: 12px;
    cursor: pointer; font-size: 15px; font-weight: 700;
    color: #2D2418;
}
.mcfaq-q span {
    background: #FF6600; color: #FFFFFF;
    padding: 3px 10px; border-radius: 6px;
    font-size: 11px; font-weight: 700;
    min-width: 30px; text-align: center;
}
.mcfaq-q i { margin-left: auto; transition: transform 0.25s ease; color: #FF6600; }
.mcfaq-item.active .mcfaq-q i { transform: rotate(180deg); }
.mcfaq-item.active { border-left-color: #FF6600; }
.mcfaq-a {
    max-height: 0; overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 20px; color: #5C4A38; font-size: 14px; line-height: 1.8;
}
.mcfaq-item.active .mcfaq-a { max-height: 200px; padding: 0 20px 16px; }

/* ===== 产品资讯：跨页大图+侧边列表 ===== */
.mcnews {
    display: grid; grid-template-columns: 1.4fr 1fr;
    gap: 24px;
}
.mcnews-big {
    position: relative; border-radius: 14px;
    overflow: hidden; display: block;
    min-height: 420px;
}
.mcnews-big img {
    position: absolute; top: 0; left: 0;
    width: 100%; height: 100%; object-fit: cover;
}
.mcnews-overlay {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 32px 28px 24px;
    background: rgba(255,102,0,0.9);
}
.mcnews-tag {
    display: inline-block; font-size: 11px;
    color: #FF6600; padding: 3px 10px;
    background: #FFFFFF; border-radius: 6px;
    margin-bottom: 10px; font-weight: 700; letter-spacing: 1px;
}
.mcnews-t {
    font-size: 22px; font-weight: 700; color: #FFFFFF;
    margin-bottom: 8px; line-height: 1.4;
}
.mcnews-m { font-size: 13px; color: #FFD9B3; line-height: 1.7; margin-bottom: 10px; }
.mcnews-d { font-size: 12px; color: #FFB380; font-weight: 700; }
.mcnews-side { display: flex; flex-direction: column; gap: 12px; }
.mcnews-sm {
    display: flex; gap: 14px;
    background: #FFFFFF; border: 1px solid #FFD9B3;
    border-radius: 10px; overflow: hidden;
    transition: all 0.25s ease;
}
.mcnews-sm:hover { border-color: #FF6600; }
.mcnews-sm-img { width: 100px; flex-shrink: 0; overflow: hidden; }
.mcnews-sm-img img { width: 100%; height: 100%; object-fit: cover; }
.mcnews-sm-body { padding: 12px 14px; flex: 1; }
.mcnews-st { font-size: 15px; font-weight: 700; color: #2D2418; margin-bottom: 6px; line-height: 1.4; }
.mcnews-sd { font-size: 12px; color: #FF6600; font-weight: 700; }

/* ===== 用户评价：错落卡片墙 ===== */
.mcwall {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 20px; align-items: start;
}
.mcwall-item {
    background: #FFFFFF; border: 1px solid #FFD9B3;
    border-radius: 14px; padding: 24px;
    transition: all 0.3s ease; position: relative;
}
.mcwall-item:hover { border-color: #FF6600; background: #FFF8F0; }
.mcwall-tall { grid-row: span 2; }
.mcwall-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.mcwall-head i {
    width: 40px; height: 40px; border-radius: 10px;
    background: #FF6600; color: #FFFFFF;
    display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.mcwall-head b { font-size: 15px; color: #2D2418; display: block; font-weight: 700; }
.mcwall-head span { font-size: 12px; color: #5C4A38; }
.mcwall-stars { color: #FF6600; font-size: 16px; letter-spacing: 2px; margin-bottom: 12px; }
.mcwall-body { font-size: 13px; color: #5C4A38; line-height: 1.8; }

/* ===== 页脚 ===== */
.mcft {
    background: #2D2418; color: #FFFFFF;
    padding: 56px 0 0; border-top: 3px solid #FF6600;
}
.mcftbox {
    display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 36px; padding-bottom: 32px;
}
.mcftc .mclg { color: #FFFFFF; }
.mcftc .mclg img { border-color: #FF6600; }
.mcftc .mclg span { color: #FFFFFF; }
.mcftc .mclg em { background: #FF6600; border-color: #FF6600; color: #FFFFFF; }
.mcftd {
    font-size: 13px; color: rgba(255,255,255,0.8);
    margin-top: 16px; line-height: 1.8;
    padding: 14px 16px;
    border: 1px solid rgba(255,102,0,0.4);
    border-radius: 10px;
}
.mcftt {
    font-size: 16px; font-weight: 700; margin-bottom: 16px;
    letter-spacing: 2px; color: #FF8800;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,102,0,0.4);
    display: inline-block;
}
.mcftc a {
    display: block; padding: 5px 0;
    color: rgba(255,255,255,0.8); font-size: 13px;
    transition: color 0.25s ease;
}
.mcftc a:hover { color: #FF8800; }
.mcftp { font-size: 12px; color: rgba(255,255,255,0.6); margin-top: 12px; line-height: 1.7; }
.mcftcpy {
    text-align: center; padding: 18px 0;
    border-top: 1px solid rgba(255,102,0,0.3);
    font-size: 12px; color: rgba(255,255,255,0.7); letter-spacing: 1px;
}

/* 返回顶部 */
.mctop {
    position: fixed; right: 22px; bottom: 22px;
    width: 48px; height: 48px; border-radius: 12px;
    background: #FF6600; color: #FFFFFF; font-size: 22px;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; visibility: hidden;
    transition: all 0.25s ease;
    border: 1px solid #FF6600; z-index: 99;
}
.mctop.show { opacity: 1; visibility: visible; }
.mctop:hover { background: #E85D04; border-color: #E85D04; }

/* ===== 响应式：767px ===== */
@media (max-width: 767px) {
    .mcbox { height: 58px; gap: 10px; }
    .mcnv, .mcrt { display: none; }
    .mcmenu { display: block; }
    .mclg span { font-size: 17px; }
    .mclg em { font-size: 10px; padding: 2px 6px; }
    .mclg img { width: 34px; height: 34px; }

    .mchero { flex-direction: column; min-height: auto; }
    .mchero-left { flex: none; padding: 40px 0 30px; }
    .mchero-left h1 { font-size: 48px; }
    .mc-sub { font-size: 15px; }
    .mc-desc { margin: 0 auto 22px; }
    .mcbtn { justify-content: center; flex-wrap: wrap; }
    .mc-data { justify-content: center; gap: 24px; }
    .mchero-right { flex: none; padding: 30px 0 40px; }
    .mc-mockup-wrap { width: 260px; height: 360px; }
    .mc-phone-main { width: 200px; height: 360px; left: 30px; }
    .mc-phone-sub { width: 160px; height: 300px; top: 30px; left: 0; }

    .mcse { padding: 40px 0; }
    .mctt { margin-bottom: 28px; gap: 10px; flex-wrap: wrap; }
    .mcno { font-size: 36px; }
    .mctx { font-size: 22px; letter-spacing: 2px; }

    .mcshelf { grid-template-columns: 1fr; gap: 20px; }
    .mcshelf-img { height: 200px; }

    .mcadv-row { flex-direction: column !important; text-align: center !important; padding: 24px 20px; gap: 16px; }

    .mcdl-row { flex-wrap: wrap; padding: 18px 20px; gap: 14px; }
    .mcdl-go { width: 100%; justify-content: center; }

    .mctimeline { padding-left: 20px; }
    .mctl-line { left: 11px; }
    .mctl-dot { width: 44px; height: 44px; font-size: 20px; margin-left: -34px; }

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

    .mcnews { grid-template-columns: 1fr; gap: 20px; }
    .mcnews-big { min-height: 280px; }

    .mcwall { grid-template-columns: 1fr; gap: 20px; }
    .mcwall-tall { grid-row: auto; }

    .mcftbox { grid-template-columns: 1fr; gap: 26px; }
    .mctop { right: 14px; bottom: 14px; width: 42px; height: 42px; }
}