/* roulang page: index */
:root {
  --color-primary: #0B3C33;
  --color-primary-deep: #06231D;
  --color-accent: #52E1A3;
  --color-ink: #10201C;
  --color-body: #5B6A66;
  --color-bg: #F7F5EF;
  --color-surface: #FFFFFF;
  --color-line: #E5E1D6;
  --color-warm: #F2B66D;
  --radius-lg: 24px;
  --radius-card: 16px;
  --shadow-card: 0 1px 2px rgba(16,18,16,0.04);
  --shadow-hover: 0 18px 40px -18px rgba(16,18,16,0.18);
}
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}
.container-site { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.nav-gradient { background: linear-gradient(115deg, #0B4A3B 0%, #06231D 100%); }
.hero-gradient { background: linear-gradient(135deg, #0B3C33 0%, #06231D 60%, #0A2B26 100%); }
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 700; border-radius: 12px; transition: all .2s ease; cursor: pointer; }
.btn-primary { background: var(--color-accent); color: #06231D; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(82,225,163,.5); }
.btn-primary:active { transform: translateY(0); }
.btn-dark { background: var(--color-primary); color: #fff; }
.btn-dark:hover { background: #0E5142; transform: translateY(-2px); }
.btn-outline { border: 1px solid rgba(255,255,255,.3); color: #fff; background: rgba(255,255,255,.06); }
.btn-outline:hover { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.55); }
.card { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-card); box-shadow: var(--shadow-card); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(11,60,51,.28); }
.badge-pill { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 6px 14px; font-size: 13px; font-weight: 500; letter-spacing: .02em; }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .12em; color: #0B6B55; text-transform: none; }
.section-title { font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.18; font-weight: 800; letter-spacing: -0.02em; }
.menu-link { display: inline-flex; align-items: center; padding: 8px 16px; border-radius: 999px; color: rgba(255,255,255,.85); font-size: 15px; font-weight: 500; transition: background .2s ease, color .2s ease; }
.menu-link:hover { background: rgba(255,255,255,.10); color: #fff; }
.menu-link.active { background: rgba(255,255,255,.14); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }
.menu-link:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.detail-item { border-bottom: 1px solid var(--color-line); }
details summary { list-style: none; }
details summary::-webkit-details-marker { display: none; }
details[open] .accordion-icon { transform: rotate(45deg); }
.accordion-icon { transition: transform .3s ease; display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 8px; background: #EDF5F1; color: #0B3C33; font-weight: 300; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.revealed { opacity: 1; transform: none; }
input, button { font-family: inherit; }
.form-email { height: 48px; width: 100%; border-radius: 10px; padding: 0 14px; font-size: 16px; border: 1px solid #D8D5CB; background: #fff; color: #10201C; }
.form-email:focus { outline: 2px solid var(--color-accent); outline-offset: 2px; border-color: transparent; }
img { max-width: 100%; }
@media (max-width: 640px) {
  .container-site { padding-left: 18px; padding-right: 18px; }
  .section-title { letter-spacing: -0.01em; }
}

:root {
  --color-primary: #0B3C33;
  --color-primary-deep: #06231D;
  --color-accent: #52E1A3;
  --color-ink: #10201C;
  --color-body: #5B6A66;
  --color-bg: #F7F5EF;
  --color-surface: #FFFFFF;
  --color-line: #E5E1D6;
  --color-warm: #F2B66D;
  --radius-lg: 24px;
  --radius-card: 16px;
  --shadow-card: 0 1px 2px rgba(16,18,16,0.04);
  --shadow-hover: 0 18px 40px -18px rgba(16,18,16,0.18);
}
html { scroll-behavior: smooth; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif; background: var(--color-bg); color: var(--color-ink); line-height: 1.7; }
.container-site { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.nav-gradient { background: linear-gradient(115deg, #0B4A3B 0%, #06231D 100%); }
.hero-gradient { background: linear-gradient(135deg, #0B3C33 0%, #06231D 60%, #0A2B26 100%); }
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 700; border-radius: 12px; transition: all .2s ease; cursor: pointer; }
.btn-primary { background: var(--color-accent); color: #06231D; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(82,225,163,.5); }
.btn-dark { background: var(--color-primary); color: #fff; }
.btn-dark:hover { transform: translateY(-2px); background: #0E5142; }
.btn-outline-light { border: 1px solid rgba(255,255,255,.35); color: #fff; background: rgba(255,255,255,.05); }
.btn-outline-light:hover { background: rgba(255,255,255,.12); }
.card { background: #fff; border: 1px solid var(--color-line); border-radius: var(--radius-card); box-shadow: var(--shadow-card); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(11,60,51,.25); }
.menu-link { display: inline-flex; align-items: center; padding: 8px 16px; border-radius: 999px; color: rgba(255,255,255,.85); font-size: 15px; font-weight: 500; transition: background .2s ease, color .2s ease; }
.menu-link:hover { background: rgba(255,255,255,.10); color: #fff; }
.menu-link.active { background: rgba(255,255,255,.14); color: #fff; box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }
.menu-link:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.chip { display: inline-flex; align-items: center; border-radius: 999px; border: 1px solid var(--color-line); background: #fff; color: var(--color-body); padding: 7px 16px; font-size: 13px; font-weight: 600; transition: background .2s, color .2s, border-color .2s; }
.chip:hover { background: #EDF5F1; color: #0B3C33; border-color: #0B3C33; }
.chip.active { background: #0B3C33; color: #fff; border-color: #0B3C33; }
.section-title { font-size: clamp(1.9rem, 3.8vw, 3rem); line-height: 1.2; font-weight: 800; letter-spacing: -0.02em; }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: .12em; color: #0B6B55; }
details summary { list-style: none; }
details summary::-webkit-details-marker { display: none; }
details[open] .accordion-icon { transform: rotate(45deg); }
.accordion-icon { transition: transform .3s ease; display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 8px; background: #EDF5F1; color: #0B3C33; font-weight: 300; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.revealed { opacity: 1; transform: none; }
.detail-item { border-bottom: 1px solid var(--color-line); }
@media (max-width: 640px) {
  .container-site { padding-left: 18px; padding-right: 18px; }
}

/* roulang page: category1 */
:root {
    --color-primary: #0B3C33;
    --color-primary-deep: #06231D;
    --color-accent: #52E1A3;
    --color-ink: #10201C;
    --color-body: #5B6A66;
    --color-bg: #F7F5EF;
    --color-surface: #FFFFFF;
    --color-line: #E5E1D6;
    --color-warm: #F2B66D;
    --radius-lg: 24px;
    --radius-card: 16px;
    --shadow-card: 0 1px 2px rgba(16,18,16,0.04);
    --shadow-hover: 0 18px 40px -18px rgba(16,18,16,0.18);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--color-bg);
    color: var(--color-ink);
    line-height: 1.7;
    text-rendering: optimizeLegibility;
}

.container-site {
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

.nav-gradient {
    background: linear-gradient(115deg, #0B4A3B 0%, #06231D 100%);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 700;
    border-radius: 12px;
    transition: all .2s ease;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent);
    color: #06231D;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px -12px rgba(82, 225, 163, .5);
    background: #6BEAB4;
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-dark {
    background: var(--color-primary);
    color: #fff;
}

.btn-dark:hover {
    background: #0E5142;
    transform: translateY(-2px);
}

.btn-outline-light {
    border: 1px solid rgba(255, 255, 255, .35);
    color: #fff;
    background: rgba(255, 255, 255, .05);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, .12);
    border-color: rgba(255, 255, 255, .6);
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(11, 60, 51, .25);
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: .02em;
}

.eyebrow {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .12em;
    color: #0B6B55;
}

.section-title {
    font-size: clamp(1.9rem, 3.8vw, 3rem);
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.menu-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    border-radius: 999px;
    color: rgba(255, 255, 255, .85);
    font-size: 15px;
    font-weight: 500;
    transition: background .2s ease, color .2s ease;
    text-decoration: none;
}

.menu-link:hover {
    background: rgba(255, 255, 255, .10);
    color: #fff;
}

.menu-link.active {
    background: rgba(255, 255, 255, .16);
    color: #fff;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .10);
}

.menu-link:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

.chip {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    border: 1px solid var(--color-line);
    background: #fff;
    color: var(--color-body);
    padding: 7px 16px;
    font-size: 13px;
    font-weight: 600;
    transition: background .2s, color .2s, border-color .2s;
    text-decoration: none;
    line-height: 1.4;
}

.chip:hover {
    background: #EDF5F1;
    color: #0B3C33;
    border-color: #0B3C33;
}

.chip.active {
    background: #0B3C33;
    color: #fff;
    border-color: #0B3C33;
}

img {
    max-width: 100%;
}

input,
button {
    font-family: inherit;
}

button:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ===== 分类页专用版式 ===== */
.cate-hero {
    background: linear-gradient(135deg, #0B3C33 0%, #092B25 72%, #071F1B 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cate-hero::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: rgba(82, 225, 163, 0.10);
    filter: blur(70px);
    top: -160px;
    right: -60px;
    pointer-events: none;
}

.cate-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 56px 56px;
    pointer-events: none;
}

.guide-cover-shadow {
    box-shadow: 0 30px 60px -24px rgba(0, 0, 0, 0.45);
}

.guide-feature {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-line);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: box-shadow .3s ease, transform .3s ease;
}

.guide-feature:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.guide-row {
    display: grid;
    grid-template-columns: 168px 1fr;
    gap: 24px;
    background: #fff;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    padding: 18px;
    box-shadow: var(--shadow-card);
    transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.guide-row:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
    border-color: rgba(11, 60, 51, .25);
}

.guide-thumb {
    border-radius: 12px;
    width: 100%;
    aspect-ratio: 4 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .03em;
    position: relative;
    overflow: hidden;
}

.guide-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.guide-thumb span {
    position: relative;
    z-index: 2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, .2);
    background: rgba(6, 35, 29, .45);
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    backdrop-filter: blur(2px);
}

.aside-card {
    background: #fff;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 24px;
}

.faq-box {
    background: #fff;
    border: 1px solid var(--color-line);
    border-radius: 18px;
}

.faq-box summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 20px 24px;
    font-weight: 650;
    font-size: 16px;
    color: var(--color-ink);
}

.faq-box summary::-webkit-details-marker {
    display: none;
}

.faq-box summary .faq-arrow {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--color-line);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: transform .3s ease, background .3s ease, border-color .3s ease;
}

.faq-box[open] summary .faq-arrow {
    transform: rotate(45deg);
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.faq-box p {
    padding: 0 24px 22px;
    color: var(--color-body);
    line-height: 1.9;
    max-width: 720px;
}

.cta-band {
    background: linear-gradient(115deg, #0B4A3B 0%, #06231D 100%);
    position: relative;
    overflow: hidden;
}

.cta-band::before {
    content: "";
    position: absolute;
    left: -80px;
    bottom: -100px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(82, 225, 163, 0.12);
    filter: blur(34px);
}

.step-tag {
    font-size: 13px;
    letter-spacing: .1em;
    font-weight: 600;
    color: #52E1A3;
}

@media (max-width: 768px) {
    .guide-row {
        grid-template-columns: 1fr;
    }

    .guide-thumb {
        aspect-ratio: 16 / 7;
    }
}

@media (max-width: 640px) {
    .container-site {
        padding-left: 18px;
        padding-right: 18px;
    }

    .section-title {
        letter-spacing: -0.01em;
    }

    .faq-box summary {
        padding: 16px 18px;
        font-size: 15px;
    }

    .faq-box p {
        padding: 0 18px 18px;
    }
}