:root { --page: #fff9e8; --soft: #fffdf5; --line: #f0e5c5; --ink: #855b16; --gold: #e99a13; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: #303642; font: 15px/1.8 "Microsoft YaHei", "PingFang SC", sans-serif; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--ink); }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }
.header, .page-main, .page-footer { width: min(1200px, calc(100% - 64px)); margin: 0 auto; }
.header { min-height: 112px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.h_logo { flex-shrink: 0; }
.h_logo img { display: block; width: 174px; height: auto; }
.header nav { display: flex; flex-wrap: wrap; gap: 28px; color: #70747c; }
.breadcrumb { display: flex; gap: 12px; color: #8c9098; font-size: 14px; margin: 12px 0 24px; }
.page-heading { padding: 28px 32px; border: 1px solid var(--line); border-radius: 20px; background: linear-gradient(110deg, #fff0bc, #fffdf5 80%); margin-bottom: 24px; }
.eyebrow { color: var(--ink); font-size: 14px; }
h1 { font-size: 30px; line-height: 1.5; margin: 4px 0 8px; }
.page-heading p { margin: 0; color: #7d786c; }
h2 { font-size: 20px; line-height: 1.5; margin: 0 0 14px; color: #303642; }
.shuoming, .liucheng, .footer, .help-section { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 30px 32px; margin-bottom: 24px; }
.shuoming { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.s_left { padding-right: 40px; border-right: 1px solid #f2eee4; }
.s_l_text, .s_r_text { color: #69707a; margin-bottom: 24px; line-height: 1.95; }
.s_l_text:last-child, .s_r_text:last-child { margin-bottom: 0; }
.s_l_img h2::before, .s_r_img h2::before { content: ""; display: inline-block; width: 4px; height: 17px; margin-right: 10px; border-radius: 2px; vertical-align: -1px; background: #f0c765; }
.l_step { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; counter-reset: steps; margin-top: 24px; }
.l_s_group { padding: 24px; border-radius: 14px; background: var(--soft); border: 1px solid #f5ecd5; }
.l_s_group::before { counter-increment: steps; content: "0" counter(steps); display: block; color: #c0922f; font-size: 25px; font-weight: 600; line-height: 1; margin-bottom: 18px; }
.l_s_g_title { font-size: 17px; font-weight: 600; margin-bottom: 12px; }
.l_s_g_c_text, .f_l_c_text { color: #69707a; line-height: 1.95; }
.f_l_c_text + .f_l_c_text { margin-top: 12px; }
.page-footer { padding: 8px 0 32px; display: flex; justify-content: space-between; color: #99917f; font-size: 13px; }
.help-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-bottom: 24px; }
.help-link { display: block; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.help-link:hover { background: var(--soft); border-color: #e9cc88; }
.help-link strong { display: block; font-size: 19px; margin-bottom: 6px; }
.help-link span { color: #85878b; font-size: 14px; }
.help-section { scroll-margin-top: 24px; }
.help-section details { border-top: 1px solid #f1eee6; padding: 18px 0; }
.help-section details:last-child { padding-bottom: 0; }
.help-section summary { cursor: pointer; font-weight: 500; }
.help-section p { color: #69707a; margin: 12px 0 0; }
.help-section p a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 800px) {
    .header, .page-main, .page-footer { width: calc(100% - 32px); }
    .header { min-height: 92px; }
    .h_logo img { width: 146px; }
    .header nav { gap: 14px; font-size: 13px; }
    .shuoming, .l_step { grid-template-columns: 1fr; gap: 24px; }
    .s_left { border: 0; padding: 0; }
    .page-heading, .shuoming, .liucheng, .footer, .help-section { padding: 24px; }
    .help-links { grid-template-columns: 1fr; gap: 12px; }
}
@media (max-width: 420px) { .header { align-items: flex-start; padding: 20px 0; } .header nav { justify-content: flex-end; gap: 6px 14px; max-width: 132px; } h1 { font-size: 26px; } }