/* ========== 基础重置 ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background: #fff;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; border: 0; }
button, input { font-family: inherit; outline: none; }

.container { max-width: 1300px; margin: 0 auto; padding: 0 5px; }

/* ========== 主色调 ========== */
:root {
    --primary: #0157C6;
    --primary-dark: #013E8F;
    --primary-deep: #012A5E;
    --primary-light: #E8F0FE;
    --gold: #C9A84C;
    --gold-light: #E8CE94;
    --soft-bg: #F5F9FF;
    --soft-bg2: #EEF4FE;
    --line: #E6EEFA;
    --radius: 10px;
    --shadow-sm: 0 2px 10px rgba(1, 60, 140, .05);
    --shadow-md: 0 10px 34px rgba(1, 60, 140, .09);
    --shadow-lg: 0 18px 48px rgba(1, 60, 140, .16);
}

/* ========== 顶部辅助条 ========== */
.topbar {
    height: 36px;
    line-height: 36px;
    background: var(--soft-bg2);
    font-size: 12px;
    color: #555;
}
.topbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.topbar-text { color: #6E80A0; letter-spacing: .5px; }
.topbar-links { display: flex; align-items: center; flex-wrap: wrap; }
.topbar-links a { color: #555; padding: 0 8px; transition: color .2s; }
.topbar-links a:hover { color: var(--primary); }
.topbar-links a.on { color: var(--primary); font-weight: 700; }
.topbar-links .sep {
    display: inline-block;
    width: 1px; height: 12px;
    background: #C5D4E8;
    margin: 0 4px;
}

/* ========== 头部标识区 ========== */
.header {
    position: relative;
    padding: 18px 0;
    background: linear-gradient(120deg, #F4F8FF 0%, #E8F0FE 45%, #DCE8FB 100%);
    overflow: hidden;
}
.header::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(50% 120% at 88% 15%, rgba(1, 87, 198, .08) 0%, transparent 65%),
        radial-gradient(40% 120% at 5% 90%, rgba(201, 168, 76, .07) 0%, transparent 65%);
    pointer-events: none;
}
.header::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(90deg, rgba(1,87,198,.03) 1px, transparent 1px),
        linear-gradient(0deg, rgba(1,87,198,.03) 1px, transparent 1px);
    background-size: 42px 42px;
    pointer-events: none;
    mask-image: linear-gradient(90deg, transparent 0%, #000 30%, #000 70%, transparent 100%);
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 30%, #000 70%, transparent 100%);
}
.header .container {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

/* 品牌 LOGO 区域 */
.brand { display: flex; align-items: center; gap: 18px; flex-shrink: 0; }
.brand .logo-img {
    max-height: 88px;
    width: auto;
    max-width: 480px;
    object-fit: contain;
    display: block;
    transition: opacity .2s;
}
.brand .logo-img:hover { opacity: .88; }
.brand .logo-img.mobile-logo { display: none; }
.brand .logo-img.pc-logo { display: block; }

/* 头部右侧工具区 */
.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* 搜索框 */
.search {
    display: flex;
    align-items: center;
    height: 44px;
    border-radius: 22px;
    overflow: hidden;
    background: #fff;
    box-shadow: var(--shadow-sm);
    transition: box-shadow .25s;
    min-width: 240px;
}
.search:focus-within { box-shadow: 0 0 0 3px rgba(1, 87, 198, .14), var(--shadow-md); }
.search input {
    width: 240px;
    height: 100%;
    border: none;
    padding: 0 8px 0 20px;
    font-size: 13.5px;
    color: #333;
    background: transparent;
}
.search input::placeholder { color: #A8B8D0; }
.search button {
    width: 58px; height: 100%;
    border: none;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background .2s;
}
.search button:hover { background: var(--primary-dark); }

/* 注册登录按钮组 */
.auth-buttons {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.auth-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 20px;
    border-radius: 22px;
    font-size: 13.5px;
    font-weight: 600;
    letter-spacing: .5px;
    transition: all .25s ease;
    white-space: nowrap;
    cursor: pointer;
    border: none;
    text-decoration: none;
}
.auth-btn-login {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}
.auth-btn-login:hover {
    background: var(--primary-light);
    transform: translateY(-1px);
}
.auth-btn-register {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 6px 16px rgba(1, 87, 198, .22);
}
.auth-btn-register:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(1, 87, 198, .3);
}

/* 移动端 "更多" 按钮 */
.mobile-more {
    display: none;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 22px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .5px;
    cursor: pointer;
    transition: background .2s;
    white-space: nowrap;
}
.mobile-more:hover { background: var(--primary-dark); }
.mobile-more .more-icon {
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.mobile-more .more-icon i {
    display: block;
    width: 16px;
    height: 2px;
    background: #fff;
    border-radius: 1px;
}

/* ========== 频道导航 ========== */
.nav {
    background: var(--primary);
    box-shadow: 0 8px 22px rgba(1, 60, 140, .18);
    position: relative;
    z-index: 100;
}
.nav .container { display: flex; align-items: stretch; padding: 0; position: relative; }

.nav-toggle { display: none; }
.nav-menu { display: flex; flex: 1; align-items: stretch; }

.nav-item {
    position: relative;
    flex: 1 1 0;
    display: flex;
    align-items: stretch;
    min-width: 0;
}
.nav-item > a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 100%;
    min-height: 56px;
    padding: 0 6px;
    color: #fff;
    font-size: 14.5px;
    letter-spacing: .5px;
    white-space: nowrap;
    transition: background .2s;
}
.nav-item > a .caret {
    display: inline-block;
    width: 0; height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid rgba(255,255,255,.75);
    transition: transform .25s;
    flex-shrink: 0;
}
.nav-item:hover > a .caret { transform: rotate(180deg); }
.nav-item > a::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 100%;
    height: 3px;
    background: var(--gold);
    transform: translateX(-50%) scaleX(0);
    transition: transform .25s ease;
}
.nav-item:hover > a { background: rgba(0, 0, 0, .14); }
.nav-item:hover > a::after,
.nav-item > a.active::after { transform: translateX(-50%) scaleX(1); }
.nav-item > a.active { background: rgba(0, 0, 0, .14); font-weight: 700; }

/* 下拉菜单 */
.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 130px;
    background: #fff;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: opacity .24s ease, transform .24s ease, visibility .24s;
    z-index: 200;
    overflow: hidden;
}
.dropdown::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--primary));
}
.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.dropdown li a {
    display: block;
    padding: 9px 22px;
    font-size: 13.5px;
    color: #445;
    white-space: nowrap;
    transition: background .18s, color .18s, padding-left .18s;
}
.dropdown li a:hover {
    background: var(--primary-light);
    color: var(--primary);
    padding-left: 27px;
}

/* ========== 面包屑 ========== */
.breadcrumb-bar {
    background: #fff;
    border-bottom: 1px solid var(--line);
}
.breadcrumb-bar .container {
    display: flex;
    align-items: center;
    height: 52px;
    font-size: 13.5px;
    color: #8A9BB8;
    gap: 6px;
    flex-wrap: wrap;
    padding-left: 5px;
}
.breadcrumb-bar a { color: #6A7A94; transition: color .2s; }
.breadcrumb-bar a:hover { color: var(--primary); }
.breadcrumb-bar .bc-sep { color: #C5D4E8; margin: 0 2px; }
.breadcrumb-bar .bc-current { color: var(--primary); font-weight: 600; }

/* ========== 主内容布局 ========== */
.main-wrap {
    background: var(--soft-bg);
    padding: 34px 0 50px;
}
.main-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 30px;
    align-items: start;
}

/* ========== 左侧：会员服务导航 ========== */
.sidebar-nav {
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    position: sticky;
    top: 20px;
    border: 1px solid #EDF3FC;
}
.sidebar-nav-head {
    padding: 24px 24px 20px;
    background: linear-gradient(130deg, #0770F6 0%, #0157C6 55%, #013E8F 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.sidebar-nav-head::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(60% 120% at 88% 10%, rgba(201,168,76,.26), transparent 62%),
        repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 40px);
    pointer-events: none;
}
.sidebar-nav-head h2 {
    position: relative;
    z-index: 2;
    font-family: "Source Han Serif SC", "Noto Serif SC", SimSun, serif;
    font-size: 23px;
    font-weight: 700;
    letter-spacing: 3px;
    line-height: 1.4;
    margin-bottom: 6px;
}
.sidebar-nav-head .en {
    position: relative;
    z-index: 2;
    font-size: 11px;
    letter-spacing: 1.5px;
    color: rgba(255,255,255,.60);
    text-transform: uppercase;
}

/* 栏目列表 */
.sidebar-menu { padding: 10px 0 14px; }
.sidebar-menu li { position: relative; }
.sidebar-menu li a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 14px 24px;
    font-size: 15px;
    color: #445;
    letter-spacing: .5px;
    transition: all .22s ease;
}
.sidebar-menu li a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) scaleY(0);
    width: 3px;
    height: 18px;
    background: linear-gradient(180deg, var(--gold), var(--primary));
    border-radius: 0 2px 2px 0;
    transition: transform .22s ease;
}
.sidebar-menu li a:hover {
    background: var(--soft-bg);
    color: var(--primary);
    padding-left: 30px;
}
.sidebar-menu li a:hover::before { transform: translateY(-50%) scaleY(1); }
.sidebar-menu li a.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 700;
    padding-left: 30px;
}
.sidebar-menu li a.active::before { transform: translateY(-50%) scaleY(1); }
.sidebar-menu li a .arrow {
    font-size: 12px;
    color: #B0C0D8;
    transition: transform .22s ease, color .22s;
}
.sidebar-menu li a:hover .arrow { transform: translateX(3px); color: var(--primary); }
.sidebar-menu li a.active .arrow { color: var(--primary); }

/* 侧栏底部联系卡 */
.sidebar-contact {
    margin: 4px 16px 18px;
    padding: 18px;
    border-radius: 12px;
    background: linear-gradient(135deg, #F4F8FF 0%, #EAF1FE 100%);
    border: 1px solid var(--line);
}
.sidebar-contact .sc-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: 1px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.sidebar-contact .sc-title svg { width: 15px; height: 15px; }
.sidebar-contact p {
    font-size: 12.5px;
    line-height: 1.9;
    color: #6A7A94;
}
.sidebar-contact p b { color: var(--primary-dark); font-weight: 600; }

/* ========== 右侧：内容区 ========== */
.content-panel {
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    min-width: 0;
    border: 1px solid #EDF3FC;
}

/* 内容头部 */
.content-head {
    padding: 28px 36px 24px;
    border-bottom: 1px solid var(--line);
    position: relative;
    background: linear-gradient(120deg, #FBFDFF 0%, #F5F9FF 100%);
}
.content-head::before {
    content: "";
    position: absolute;
    left: 36px;
    bottom: -1px;
    width: 56px;
    height: 3px;
    background: linear-gradient(90deg, var(--gold), var(--primary));
    border-radius: 2px;
}
.content-head .ch-tag {
    display: inline-block;
    padding: 3px 12px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    border-radius: 3px;
    letter-spacing: 2px;
    margin-bottom: 12px;
}
.content-head h1 {
    font-family: "Source Han Serif SC", "Noto Serif SC", SimSun, serif;
    font-size: 27px;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--primary-dark);
    line-height: 1.45;
    margin-bottom: 10px;
}
.content-head .content-sub {
    font-size: 13.5px;
    color: #8A9BB8;
    letter-spacing: .5px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* 内容主体 */
.content-body {
    padding: 28px 36px 40px;
}

/* 导语 */
.page-lead {
    font-size: 15.5px;
    line-height: 2;
    color: #3A4A64;
    font-weight: 500;
    padding: 20px 24px;
    background: linear-gradient(135deg, #F5F9FF 0%, #EDF4FE 100%);
    border-left: 4px solid var(--gold);
    border-radius: 0 10px 10px 0;
    margin-bottom: 30px;
    text-align: justify;
    text-justify: inter-ideograph;
}

/* 会员体系概览（原member-overview） */
.member-overview {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 36px;
}
.mo-card {
    position: relative;
    padding: 24px 20px 20px;
    border-radius: 14px;
    background: linear-gradient(160deg, #F8FBFF 0%, #EEF4FE 100%);
    border: 1px solid var(--line);
    text-align: center;
    overflow: hidden;
    transition: transform .3s, box-shadow .3s;
}
.mo-card::after {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--gold));
    opacity: 0;
    transition: opacity .3s;
}
.mo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 30px rgba(1, 90, 200, .12);
}
.mo-card:hover::after { opacity: 1; }
.mo-icon {
    width: 48px; height: 48px;
    margin: 0 auto 12px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .3s, color .3s;
}
.mo-card:hover .mo-icon { background: var(--primary); color: #fff; }
.mo-icon svg { width: 24px; height: 24px; }
.mo-num {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 30px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 4px;
}
.mo-num .unit { font-size: 15px; font-weight: 600; margin-left: 2px; letter-spacing: 0; }
.mo-label {
    font-size: 13.5px;
    color: #6A7A94;
    letter-spacing: 1px;
}

/* 小标题 */
.block-title {
    position: relative;
    padding-left: 16px;
    font-family: "Source Han Serif SC", "Noto Serif SC", SimSun, serif;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--primary-dark);
    margin: 36px 0 20px;
}
.block-title::before {
    content: "";
    position: absolute;
    left: 0; top: 50%;
    transform: translateY(-50%);
    width: 4px; height: 20px;
    background: linear-gradient(180deg, var(--gold), var(--primary));
    border-radius: 2px;
}

/* 会员权益网格（原benefit-grid） */
.benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.benefit-card {
    display: flex;
    gap: 14px;
    padding: 20px 18px;
    background: #F8FBFF;
    border: 1px solid #EDF3FC;
    border-radius: 12px;
    transition: background .25s, border-color .25s, transform .25s;
}
.benefit-card:hover {
    background: #fff;
    border-color: var(--primary-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(1, 90, 200, .08);
}
.benefit-card .bc-icon {
    flex-shrink: 0;
    width: 44px; height: 44px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .25s, color .25s;
}
.benefit-card:hover .bc-icon { background: var(--primary); color: #fff; }
.benefit-card .bc-icon svg { width: 21px; height: 21px; }
.benefit-card .bc-info h4 {
    font-size: 15px;
    font-weight: 700;
    color: #1A2A44;
    letter-spacing: .5px;
    margin-bottom: 4px;
    transition: color .2s;
}
.benefit-card:hover .bc-info h4 { color: var(--primary); }
.benefit-card .bc-info p {
    font-size: 13px;
    line-height: 1.75;
    color: #7A8BA8;
    text-align: justify;
}

/* ========== 会员类型（调整为两类） ========== */
.member-types {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 6px;
    max-width: 820px;
}
.mt-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    transition: transform .3s, box-shadow .3s, border-color .3s;
}
.mt-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 18px 38px rgba(1, 90, 200, .14);
    border-color: #C9DCF4;
}
.mt-card.featured {
    border-color: var(--primary);
    box-shadow: 0 12px 30px rgba(1, 87, 198, .16);
}
.mt-card.featured::before {
    content: "推荐";
    position: absolute;
    top: 14px;
    right: -30px;
    width: 110px;
    padding: 4px 0;
    background: var(--gold);
    color: #013E8F;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: 2px;
    text-align: center;
    transform: rotate(45deg);
    z-index: 3;
}
.mt-head {
    position: relative;
    padding: 26px 24px 22px;
    background: linear-gradient(140deg, #F8FBFF 0%, #EDF4FE 100%);
    border-bottom: 1px solid var(--line);
    text-align: center;
}
.mt-card.featured .mt-head {
    background: linear-gradient(140deg, #0770F6 0%, #0157C6 55%, #013E8F 100%);
    color: #fff;
}
.mt-head .mt-name {
    font-family: "Source Han Serif SC", "Noto Serif SC", SimSun, serif;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--primary-dark);
    margin-bottom: 6px;
}
.mt-card.featured .mt-head .mt-name { color: #fff; }
.mt-head .mt-en {
    font-size: 11px;
    letter-spacing: 1.5px;
    color: #A8B8D0;
    text-transform: uppercase;
}
.mt-card.featured .mt-head .mt-en { color: rgba(255,255,255,.6); }
.mt-head .mt-price {
    margin-top: 16px;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}
.mt-card.featured .mt-head .mt-price { color: var(--gold-light); }
.mt-head .mt-price small {
    font-family: "Source Han Sans SC", sans-serif;
    font-size: 13px;
    font-weight: 500;
    color: #8A9BB8;
    margin-left: 4px;
}
.mt-card.featured .mt-head .mt-price small { color: rgba(255,255,255,.7); }
.mt-body {
    flex: 1;
    padding: 22px 24px 26px;
    display: flex;
    flex-direction: column;
}
.mt-body ul { flex: 1; margin-bottom: 22px; }
.mt-body ul li {
    position: relative;
    padding: 9px 0 9px 22px;
    font-size: 13.5px;
    line-height: 1.7;
    color: #5A6A84;
    border-bottom: 1px dashed #EDF3FC;
}
.mt-body ul li:last-child { border-bottom: none; }
.mt-body ul li::before {
    content: "";
    position: absolute;
    left: 4px; top: 17px;
    width: 6px; height: 6px;
    background: var(--gold);
    border-radius: 1px;
    transform: rotate(45deg);
}
.mt-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    border-radius: 22px;
    font-size: 14.5px;
    font-weight: 700;
    letter-spacing: 1px;
    transition: all .25s;
}
.mt-btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}
.mt-btn-outline:hover { background: var(--primary-light); }
.mt-btn-solid {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 20px rgba(1, 87, 198, .26);
}
.mt-btn-solid:hover { background: var(--primary-dark); transform: translateY(-2px); }
.mt-card.featured .mt-btn-solid { background: var(--gold); color: #013E8F; box-shadow: 0 8px 20px rgba(201, 168, 76, .3); }
.mt-card.featured .mt-btn-solid:hover { background: var(--gold-light); }

/* ========== 会费说明（红头文件图片） ========== */
.fee-note-section {
    margin: 40px 0 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.fee-note-img-wrapper {
    max-width: 720px;
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: box-shadow .3s, transform .3s;
    background: #fff;
}
.fee-note-img-wrapper:hover {
    box-shadow: var(--shadow-lg);
    transform: scale(1.01);
}
.fee-note-img-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}
.fee-note-caption {
    margin-top: 14px;
    font-size: 13px;
    color: #8A9BB8;
    letter-spacing: .5px;
    text-align: center;
}

/* ========== 入会流程（优化增强） ========== */
.join-process {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin-top: 6px;
    position: relative;
}
.jp-step {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 24px 12px 20px;
    background: #F8FBFF;
    border: 1px solid #EDF3FC;
    border-radius: 14px;
    transition: background .25s, border-color .25s, transform .25s;
}
.jp-step:hover {
    background: #fff;
    border-color: var(--primary-light);
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(1, 90, 200, .07);
}
.jp-step .jp-num {
    width: 40px; height: 40px;
    border-radius: 50%;
    background: linear-gradient(140deg, #2A7AE0, #0157C6);
    color: #fff;
    font-family: Georgia, serif;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    box-shadow: 0 6px 14px rgba(1, 87, 198, .24);
    position: relative;
    z-index: 2;
}
.jp-step .jp-title {
    font-size: 14.5px;
    font-weight: 700;
    color: #1A2A44;
    letter-spacing: .5px;
    margin-bottom: 6px;
}
.jp-step .jp-desc {
    font-size: 12px;
    line-height: 1.6;
    color: #8A9BB8;
}
/* 流程连接线 */
.jp-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 44px;
    left: 50%;
    width: calc(100% - 40px);
    height: 2px;
    background: linear-gradient(90deg, #C9DCF4, #E6EEFA);
    z-index: 1;
}
.jp-step:not(:last-child)::before {
    content: "";
    position: absolute;
    top: 40px;
    right: 2px;
    width: 8px; height: 8px;
    border-top: 2px solid #C9DCF4;
    border-right: 2px solid #C9DCF4;
    transform: rotate(45deg);
    z-index: 1;
}

/* 入会流程补充卡片（右侧拓展内容） */
.join-extra {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 28px;
}
.je-card {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 20px 22px;
    transition: border-color .25s, box-shadow .25s, transform .25s;
}
.je-card:hover {
    border-color: var(--primary-light);
    box-shadow: 0 10px 24px rgba(1, 90, 200, .07);
    transform: translateY(-3px);
}
.je-card .je-icon {
    width: 42px; height: 42px;
    border-radius: 10px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}
.je-card .je-icon svg { width: 21px; height: 21px; }
.je-card h4 {
    font-size: 15px;
    font-weight: 700;
    color: #1A2A44;
    letter-spacing: .5px;
    margin-bottom: 6px;
}
.je-card p {
    font-size: 13px;
    line-height: 1.75;
    color: #7A8BA8;
    text-align: justify;
}

/* 入会入口 + 申请查询按钮区 */
.join-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 32px;
    padding: 26px 30px;
    border-radius: 16px;
    background: linear-gradient(135deg, #F0F6FF 0%, #E6EFFE 100%);
    border: 1px solid var(--line);
}
.join-cta .jc-left {
    display: flex;
    align-items: center;
    gap: 16px;
}
.join-cta .jc-icon {
    flex-shrink: 0;
    width: 54px; height: 54px;
    border-radius: 14px;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 18px rgba(1, 87, 198, .26);
}
.join-cta .jc-icon svg { width: 26px; height: 26px; }
.join-cta .jc-text h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: .5px;
    margin-bottom: 4px;
}
.join-cta .jc-text p { font-size: 13.5px; color: #6A7A94; }
.join-cta .jc-actions { display: flex; gap: 14px; flex-wrap: wrap; flex-shrink: 0; }
.jc-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: .5px;
    transition: all .25s;
    cursor: pointer;
    border: none;
    text-decoration: none;
    white-space: nowrap;
}
.jc-btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 8px 18px rgba(1, 87, 198, .24);
}
.jc-btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.jc-btn-ghost {
    background: #fff;
    color: var(--primary);
    border: 1.5px solid var(--primary-light);
}
.jc-btn-ghost:hover { border-color: var(--primary); background: #fff; }
.jc-btn .arrow { transition: transform .25s; }
.jc-btn:hover .arrow { transform: translateX(4px); }

/* 新增按钮组：在线申请 + 会员查询 */
.join-apply-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 18px;
    margin: 20px 0 10px;
}
.jaa-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 36px;
    border-radius: 30px;
    font-size: 15.5px;
    font-weight: 700;
    letter-spacing: 1px;
    background: #fff;
    color: var(--primary);
    border: 2px solid var(--primary);
    transition: all .3s ease;
    cursor: pointer;
    text-decoration: none;
}
.jaa-btn:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(1, 87, 198, .25);
}
.jaa-btn.accent {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 8px 20px rgba(1, 87, 198, .22);
}
.jaa-btn.accent:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
}
.jaa-btn svg { width: 20px; height: 20px; }

/* 会员服务问答 */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
    background: #F8FBFF;
    border: 1px solid #EDF3FC;
    border-radius: 12px;
    overflow: hidden;
    transition: border-color .25s, background .25s;
}
.faq-item:hover { border-color: var(--primary-light); background: #fff; }
.faq-item summary {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    list-style: none;
    font-size: 15px;
    font-weight: 600;
    color: #1A2A44;
    letter-spacing: .3px;
    transition: color .2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item summary .faq-q {
    flex-shrink: 0;
    width: 24px; height: 24px;
    border-radius: 6px;
    background: var(--primary-light);
    color: var(--primary);
    font-family: Georgia, serif;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}
.faq-item summary .faq-caret {
    margin-left: auto;
    flex-shrink: 0;
    width: 18px; height: 18px;
    color: #A8B8D0;
    transition: transform .25s;
}
.faq-item[open] summary .faq-caret { transform: rotate(180deg); color: var(--primary); }
.faq-item[open] summary { color: var(--primary); }
.faq-answer {
    padding: 0 20px 18px 56px;
    font-size: 13.5px;
    line-height: 1.9;
    color: #6A7A94;
    text-align: justify;
}

/* 提示条 */
.info-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 30px;
    padding: 16px 20px;
    border-radius: 10px;
    background: linear-gradient(90deg, #FBF8F0 0%, #FDFBF5 100%);
    border-left: 4px solid var(--gold);
    font-size: 13.5px;
    line-height: 1.8;
    color: #7A6A40;
}
.info-note svg {
    flex-shrink: 0;
    width: 18px; height: 18px;
    margin-top: 2px;
    color: var(--gold);
}

/* ========== 弹窗（Modal）样式 ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(1, 20, 50, .45);
    backdrop-filter: blur(3px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity .3s, visibility .3s;
}
.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}
.modal-box {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 30px 70px rgba(0, 20, 60, .3);
    width: 100%;
    max-width: 580px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(24px) scale(.97);
    transition: transform .32s cubic-bezier(.16,1,.3,1);
}
.modal-overlay.active .modal-box {
    transform: translateY(0) scale(1);
}
.modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 28px;
    border-bottom: 1px solid var(--line);
    background: linear-gradient(120deg, #F7FAFF 0%, #F0F6FF 100%);
    flex-shrink: 0;
}
.modal-head h3 {
    font-family: "Source Han Serif SC", "Noto Serif SC", SimSun, serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.modal-head h3 svg { width: 22px; height: 22px; color: var(--primary); }
.modal-close {
    width: 36px; height: 36px;
    border-radius: 50%;
    border: none;
    background: #EDF3FC;
    color: #5A6A84;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s, color .2s, transform .2s;
    flex-shrink: 0;
}
.modal-close:hover {
    background: var(--primary-light);
    color: var(--primary);
    transform: rotate(90deg);
}
.modal-body {
    padding: 28px;
    overflow-y: auto;
    flex: 1;
    font-size: 14px;
    line-height: 1.8;
    color: #4A5A74;
}
.modal-body h4 {
    font-size: 15.5px;
    font-weight: 700;
    color: #1A2A44;
    margin: 20px 0 8px;
}
.modal-body h4:first-child { margin-top: 0; }
.modal-body p { margin-bottom: 10px; text-align: justify; }
.modal-body ul {
    list-style: disc;
    padding-left: 20px;
    margin: 8px 0 14px;
}
.modal-body ul li {
    margin-bottom: 6px;
    font-size: 13.5px;
    line-height: 1.75;
    color: #5A6A84;
}
.modal-body .note-box {
    background: #F8FBFF;
    border-left: 3px solid var(--gold);
    padding: 12px 16px;
    border-radius: 0 8px 8px 0;
    font-size: 13px;
    color: #6A7A94;
    margin-top: 14px;
}
.modal-body .form-row {
    display: flex;
    gap: 14px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.modal-body .form-row .form-group {
    flex: 1;
    min-width: 200px;
}
.modal-body .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #1A2A44;
    margin-bottom: 5px;
    letter-spacing: .3px;
}
.modal-body .form-group input,
.modal-body .form-group select,
.modal-body .form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    font-size: 13.5px;
    color: #333;
    background: #FCFDFF;
    transition: border-color .2s, box-shadow .2s;
}
.modal-body .form-group input:focus,
.modal-body .form-group select:focus,
.modal-body .form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(1, 87, 198, .1);
    background: #fff;
}
.modal-body .form-group textarea {
    resize: vertical;
    min-height: 80px;
}
.modal-submit {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 46px;
    margin-top: 20px;
    border: none;
    border-radius: 23px;
    background: var(--primary);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: background .25s, transform .2s, box-shadow .25s;
    box-shadow: 0 8px 20px rgba(1, 87, 198, .24);
}
.modal-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(1, 87, 198, .32);
}

/* 返回顶部 */
.to-top {
    position: fixed;
    right: 26px;
    bottom: 30px;
    z-index: 400;
    width: 46px; height: 46px;
    border: none;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 26px rgba(1, 60, 140, .3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity .3s, visibility .3s, transform .3s, background .3s;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--primary-dark); }

/* ========== 底部功能区 ========== */
.footer {
    background: var(--primary);
    color: #DCE9FB;
    border-top: 3px solid var(--gold);
}
.footer-main { padding: 46px 0 36px; box-shadow: inset 0 -1px 0 rgba(255,255,255,.22); }
.footer-cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1.2fr; gap: 32px; }

.footer-brand { display: flex; flex-direction: column; gap: 14px; }
.footer-brand .fb-logo { display: flex; align-items: center; gap: 12px; }
.footer-brand .fb-logo img.logo-img {
    max-height: 46px;
    width: auto;
    max-width: 260px;
    object-fit: contain;
}
.footer-brand .fb-desc { font-size: 13.5px; line-height: 1.9; color: #DCE9FB; text-align: justify; }
.footer-brand .fb-qr { display: flex; align-items: center; gap: 12px; margin-top: 4px; }
.footer-brand .fb-qr .qr-box {
    width: 72px; height: 72px;
    padding: 4px;
    background: #fff;
    border-radius: 6px;
    flex-shrink: 0;
}
.footer-brand .fb-qr .qr-box i {
    display: block;
    width: 100%; height: 100%;
    background-color: #fff;
    background-image:
        linear-gradient(45deg, #1A2A44 25%, transparent 25%, transparent 75%, #1A2A44 75%),
        linear-gradient(45deg, #1A2A44 25%, transparent 25%, transparent 75%, #1A2A44 75%);
    background-size: 9px 9px;
    background-position: 0 0, 4.5px 4.5px;
    opacity: .85;
}
.footer-brand .fb-qr .qr-text { font-size: 13px; line-height: 1.7; color: #DCE9FB; }
.footer-brand .fb-qr .qr-text strong { display: block; color: #fff; font-size: 13.5px; margin-bottom: 2px; }

.footer-col h4 {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 1px;
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255,255,255,.25);
}
.footer-col ul li { margin-bottom: 9px; }
.footer-col ul li a {
    font-size: 13.5px;
    color: #DCE9FB;
    transition: color .2s, padding-left .2s;
    display: inline-block;
}
.footer-col ul li a:hover { color: var(--gold-light); padding-left: 4px; }

.footer-contact li {
    display: flex;
    gap: 8px;
    font-size: 13.5px;
    color: #DCE9FB;
    margin-bottom: 12px;
    line-height: 1.7;
}
.footer-contact li .fc-icon { flex-shrink: 0; width: 16px; height: 16px; margin-top: 2px; color: var(--gold); }
.footer-contact li .fc-icon svg { width: 100%; height: 100%; }

.footer-bottom { padding: 26px 0 28px; text-align: center; }
.footer-bottom .fb-line { font-size: 14px; line-height: 2.1; color: #EAF2FF; }
.footer-bottom .fb-line a { color: #EAF2FF; transition: color .2s; }
.footer-bottom .fb-line a:hover { color: var(--gold-light); }
.footer-bottom .sep { margin: 0 12px; color: rgba(255,255,255,.45); }

.footer-badges {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 18px;
}
.footer-badges .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 20px;
    background: rgba(255,255,255,.14);
    font-size: 13.5px;
    color: #EAF2FF;
    transition: all .2s;
}
.footer-badges .badge:hover { background: rgba(201,168,76,.2); color: var(--gold-light); }

.footer-copyright {
    margin-top: 20px;
    padding-top: 18px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.22);
    font-size: 14px;
    color: #DCE9FB;
    line-height: 2;
}
.footer-copyright .highlight { color: #fff; font-weight: 600; }

/* ============================================================
   响应式布局
   ============================================================ */
@media (max-width: 1340px) {
    .container { max-width: 100%; }
}

/* 平板 */
@media (max-width: 1024px) {
    .main-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .sidebar-nav {
        position: static;
        border-radius: 14px;
    }
    .sidebar-nav-head { padding: 18px 20px 14px; }
    .sidebar-nav-head h2 { font-size: 19px; letter-spacing: 2px; }
    .sidebar-contact { display: none; }

    .content-head { padding: 22px 24px 18px; }
    .content-head::before { left: 24px; }
    .content-head h1 { font-size: 22px; letter-spacing: 2px; }
    .content-body { padding: 24px 24px 32px; }

    .member-overview { grid-template-columns: repeat(2, 1fr); }
    .benefit-grid { grid-template-columns: repeat(2, 1fr); }
    .member-types { max-width: 600px; margin-left: auto; margin-right: auto; }
    .join-process { grid-template-columns: repeat(3, 1fr); }
    .jp-step:not(:last-child)::after,
    .jp-step:not(:last-child)::before { display: none; }
    .join-extra { grid-template-columns: repeat(2, 1fr); }

    /* 导航折叠 */
    .nav .container { flex-direction: column; align-items: stretch; padding: 0; }
    .nav-menu { display: none; flex-direction: column; background: #fff; }
    .nav-menu.open { display: flex; }
    .nav-item { flex: none; width: 100%; display: block; }
    .nav-item > a {
        justify-content: space-between;
        min-height: 0;
        padding: 14px 20px;
        color: #25324A;
        font-size: 15.5px;
        font-weight: 600;
        text-align: left;
        box-shadow: inset 0 -1px 0 var(--line);
    }
    .nav-item > a::after { display: none; }
    .nav-item:hover > a { background: #F2F7FF; }
    .nav-item > a.active { background: #F2F7FF; color: var(--primary); }
    .nav-item > a .caret { border-top-color: #8A9BB8; }
    .nav-item.open > a .caret { transform: rotate(180deg); }

    .dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        display: none;
        width: 100%;
        min-width: 0;
        border-radius: 0;
        box-shadow: none;
        background: var(--soft-bg);
        padding: 0;
        overflow: visible;
    }
    .dropdown::before { display: none; }
    .nav-item.open .dropdown { display: block; }
    .dropdown li a { padding: 12px 34px; box-shadow: inset 0 -1px 0 var(--line); }
    .dropdown li:last-child a { box-shadow: none; }
    .dropdown li a:hover { padding-left: 38px; }
    .nav-item:hover .dropdown { transform: none; }

    /* 子栏目菜单：网格布局 */
    .sidebar-nav {
        border-radius: 14px;
        overflow: visible;
        background: #fff;
        box-shadow: var(--shadow-sm);
    }
    .sidebar-nav-head {
        border-radius: 14px 14px 0 0;
        padding: 16px 18px 12px;
        background: linear-gradient(130deg, #0770F6 0%, #0157C6 55%, #013E8F 100%);
    }
    .sidebar-nav-head h2 { font-size: 18px; letter-spacing: 2px; margin-bottom: 4px; }
    .sidebar-nav-head .en { font-size: 10px; }

    .sidebar-menu {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        padding: 12px;
        border-bottom: 1px solid var(--line);
        background: #fff;
    }
    .sidebar-menu li { position: relative; }
    .sidebar-menu li a {
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        padding: 11px 8px;
        font-size: 14px;
        font-weight: 500;
        color: #5A6A84;
        background: #F4F8FF;
        border-radius: 10px;
        border: 1px solid transparent;
        transition: all .22s ease;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        min-height: 44px;
    }
    .sidebar-menu li a::before { display: none; }
    .sidebar-menu li a .arrow { display: none; }
    .sidebar-menu li a:hover {
        background: var(--primary-light);
        color: var(--primary);
        padding-left: 8px;
        border-color: var(--primary-light);
    }
    .sidebar-menu li a.active {
        background: var(--primary);
        color: #fff;
        font-weight: 600;
        box-shadow: 0 4px 12px rgba(1, 87, 198, .25);
        padding-left: 8px;
        border-color: var(--primary);
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .sidebar-menu {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
        padding: 10px;
    }
    .sidebar-menu li a {
        padding: 10px 4px;
        font-size: 13px;
        min-height: 40px;
        white-space: normal;
        line-height: 1.3;
        word-break: break-all;
    }
    .sidebar-menu li a:hover,
    .sidebar-menu li a.active {
        padding-left: 4px;
    }

    .member-overview { grid-template-columns: 1fr; }
    .benefit-grid { grid-template-columns: 1fr; }
    .member-types { grid-template-columns: 1fr; }
    .join-process { grid-template-columns: 1fr; }
    .join-extra { grid-template-columns: 1fr; }
    .join-apply-actions { flex-direction: column; }
    .jaa-btn { width: 100%; justify-content: center; }
}

/* 移动端头部传统模式 */
@media (max-width: 768px) {
    .topbar { display: none; }

    .header {
        padding: 10px 0;
        background: #075ECF;
        border-bottom: 1px solid var(--line);
        overflow: visible;
    }
    .header::before,
    .header::after { display: none; }

    .header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: nowrap;
        gap: 10px;
    }

    .brand { gap: 0; flex: 1; min-width: 0; }
    .brand .logo-img {
        max-height: 56px;
        max-width: 200px;
        width: auto;
        height: auto;
        object-fit: contain;
    }

    .brand .logo-img.pc-logo { display: none; }
    .brand .logo-img.mobile-logo { display: block; }

    .header-right {
        display: flex;
        align-items: center;
        gap: 0;
        flex-shrink: 0;
    }
    .header-right .search { display: none; }
    .header-right .auth-buttons { display: none; }

    .mobile-more { display: flex; }

    .nav {
        position: relative;
        box-shadow: none;
        background: transparent;
    }
    .nav .container { padding: 0; }
    .nav-toggle { display: none; }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        z-index: 300;
        flex-direction: column;
        background: #fff;
        box-shadow: 0 10px 24px rgba(0,0,0,.1);
        max-height: 80vh;
        overflow-y: auto;
        border-top: 1px solid var(--line);
    }
    .nav-menu.open { display: flex; }

    .nav-item { flex: none; width: 100%; display: block; }
    .nav-item > a {
        justify-content: space-between;
        min-height: 0;
        padding: 14px 20px;
        color: #25324A;
        font-size: 15.5px;
        font-weight: 600;
        text-align: left;
        box-shadow: inset 0 -1px 0 var(--line);
    }
    .nav-item > a::after { display: none; }
    .nav-item:hover > a { background: #F2F7FF; }
    .nav-item > a.active { background: #F2F7FF; color: var(--primary); }
    .nav-item > a .caret { border-top-color: #8A9BB8; }
    .nav-item.open > a .caret { transform: rotate(180deg); }

    .dropdown {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        display: none;
        width: 100%;
        min-width: 0;
        border-radius: 0;
        box-shadow: none;
        background: var(--soft-bg);
        padding: 0;
        overflow: visible;
    }
    .dropdown::before { display: none; }
    .nav-item.open .dropdown { display: block; }
    .dropdown li a { padding: 12px 34px; box-shadow: inset 0 -1px 0 var(--line); }
    .dropdown li:last-child a { box-shadow: none; }
    .dropdown li a:hover { padding-left: 38px; }
    .nav-item:hover .dropdown { transform: none; }

    /* 面包屑 */
    .breadcrumb-bar .container {
        height: auto;
        padding: 12px 0 12px 12px;
        font-size: 12.5px;
    }

    /* 主内容 */
    .main-wrap { padding: 16px 0 36px; }

    /* 内容区 */
    .content-head { padding: 18px 16px 16px; }
    .content-head::before { left: 16px; width: 46px; }
    .content-head h1 { font-size: 19px; letter-spacing: 1px; }
    .content-head .content-sub { font-size: 12.5px; }

    .content-body { padding: 20px 16px 28px; }

    .page-lead { font-size: 14px; line-height: 1.9; padding: 14px 16px; margin-bottom: 22px; }

    .member-overview { grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 24px; }
    .mo-card { padding: 16px 10px 14px; }
    .mo-icon { width: 40px; height: 40px; margin-bottom: 8px; }
    .mo-icon svg { width: 20px; height: 20px; }
    .mo-num { font-size: 24px; }
    .mo-label { font-size: 12px; }

    .block-title { font-size: 17px; margin: 28px 0 16px; }
    .block-title::before { height: 17px; }

    .benefit-grid { gap: 10px; }
    .benefit-card { padding: 14px 12px; gap: 10px; }
    .benefit-card .bc-icon { width: 38px; height: 38px; }
    .benefit-card .bc-icon svg { width: 18px; height: 18px; }
    .benefit-card .bc-info h4 { font-size: 14px; }
    .benefit-card .bc-info p { font-size: 12px; }

    .member-types { gap: 16px; }
    .mt-head { padding: 20px 18px 16px; }
    .mt-head .mt-name { font-size: 18px; }
    .mt-head .mt-price { font-size: 26px; }
    .mt-body { padding: 16px 18px 20px; }
    .mt-body ul li { font-size: 13px; padding: 7px 0 7px 20px; }

    .join-process { grid-template-columns: 1fr; gap: 10px; }
    .jp-step { flex-direction: row; text-align: left; padding: 14px 16px; gap: 12px; }
    .jp-step .jp-num { flex-shrink: 0; width: 34px; height: 34px; font-size: 15px; margin-bottom: 0; }
    .jp-step .jp-title { margin-bottom: 2px; }
    .jp-step .jp-text-wrap { display: flex; flex-direction: column; }
    .join-extra { grid-template-columns: 1fr; }

    .join-cta { flex-direction: column; align-items: flex-start; padding: 18px; gap: 16px; }
    .join-cta .jc-actions { width: 100%; }
    .jc-btn { flex: 1; justify-content: center; padding: 10px 16px; font-size: 13px; }
    .jaa-btn { padding: 12px 22px; font-size: 14px; }

    .fee-note-img-wrapper { max-width: 100%; }

    .faq-item summary { padding: 14px 16px; font-size: 14px; }
    .faq-answer { padding: 0 16px 16px 48px; font-size: 13px; }

    .info-note { font-size: 12.5px; padding: 14px 16px; margin-top: 22px; }

    .modal-box { max-width: 96vw; max-height: 90vh; }
    .modal-head { padding: 16px 18px; }
    .modal-head h3 { font-size: 17px; }
    .modal-body { padding: 20px 18px; }

    /* 页脚 */
    .footer-cols { grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-main { padding: 32px 0 24px; }
}

@media (max-width: 480px) {
    .container { padding: 0 14px; }

    .content-head h1 { font-size: 17px; }

    .member-overview { grid-template-columns: 1fr; }
    .benefit-grid { grid-template-columns: 1fr; }
    .member-types { grid-template-columns: 1fr; }
    .join-process { grid-template-columns: 1fr; }
    .join-extra { grid-template-columns: 1fr; }

    .footer-cols { grid-template-columns: 1fr; }
    .to-top { right: 16px; bottom: 18px; }
}