:root{--c-text:#222;--c-text-2:#666;--c-text-3:#999;--c-line:#ececec;--c-bg:#f5f5f5;--c-card:#fff;--c-accent:#fff7cb;--c-accent-line:#eadc7a;--c-brand:#5b4fd6;--c-brand-dark:#1a1a1a;--c-link:#5b4fd6;--c-price:#c0392b;--c-btn:#c0392b;--c-btn-hover:#a93226;--c-ok:#1f7a45;--c-wechat:#07c160;--c-warn:#8a5a12;--wrap:1180px;--topbar-h:34px;--header-h:64px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{color:var(--c-text);background:var(--c-bg);font-family:Microsoft YaHei,PingFang SC,Hiragino Sans GB,SimSun,sans-serif;font-size:14px;line-height:1.7}a{color:var(--c-link);text-decoration:none}a:hover{text-decoration:underline}button,input,textarea{font-family:inherit}img{vertical-align:middle;max-width:100%}#app{min-height:100vh}.wrap{width:var(--wrap);max-width:calc(100% - 40px);margin:0 auto}.layout{flex-direction:column;min-height:100vh;display:flex}.layout__main{flex:1}.btn{background:var(--c-btn);color:#fff;text-align:center;cursor:pointer;border:1px solid #0000;border-radius:2px;height:40px;padding:0 22px;font-size:14px;line-height:38px;display:inline-block}.btn:hover{background:var(--c-btn-hover);color:#fff;text-decoration:none}.btn:disabled{opacity:.55;cursor:not-allowed}.btn--ghost{color:var(--c-brand);border-color:var(--c-brand);background:#fff;line-height:38px}.btn--ghost:hover{background:var(--c-accent);color:var(--c-brand)}.btn--block+.btn--block{margin-top:8px}.btn--block{width:100%;display:block}.btn--lg{height:44px;padding:0 28px;font-size:16px;line-height:42px}.btn--sm{height:32px;padding:0 12px;font-size:13px;line-height:30px}.crumb{color:var(--c-text-3);padding:14px 0 12px;font-size:12px}.crumb a{color:var(--c-text-2)}.crumb span{color:#ccc;margin:0 6px}.panel{background:var(--c-card);border:1px solid var(--c-line)}.panel__hd{border-bottom:1px solid var(--c-line);border-left:3px solid var(--c-accent-line);color:var(--c-brand-dark);padding:12px 18px;font-size:15px;font-weight:700}.panel__bd{padding:16px 18px}.page-title{color:var(--c-brand-dark);margin:0 0 8px;font-size:22px;font-weight:700}.muted{color:var(--c-text-3)}.price{color:var(--c-price);font-weight:700}.price em{margin-right:2px;font-size:.6em;font-style:normal}.empty{text-align:center;color:var(--c-text-3);padding:70px 20px}.empty p{margin:0 0 16px}.kv{border-collapse:collapse;width:100%}.kv th,.kv td{text-align:left;vertical-align:top;padding:8px 0;font-weight:400}.kv th{width:92px;color:var(--c-text-3);font-size:13px}.doc h2{color:var(--c-brand-dark);margin:28px 0 10px;font-size:16px}.doc h2:first-child{margin-top:0}.doc p,.doc li{color:var(--c-text-2);line-height:1.85}.doc ol,.doc ul{padding-left:22px}#site-toast{color:#fff;text-align:center;opacity:0;pointer-events:none;z-index:4000;background:#1e1e1ee0;border-radius:2px;min-width:160px;max-width:420px;padding:10px 18px;font-size:13px;transition:opacity .2s,transform .2s;position:fixed;top:48px;left:50%;transform:translate(-50%)translateY(-12px)}#site-toast.is-show{opacity:1;transform:translate(-50%)translateY(0)}#site-loading{z-index:3999;background:#ffffff73;justify-content:center;align-items:center;display:none;position:fixed;inset:0}#site-loading.is-show{display:flex}.site-loading__box{color:#fff;background:#141414db;border-radius:2px;align-items:center;gap:10px;padding:16px 22px;font-size:13px;display:flex}.site-loading__box i{border:2px solid #ffffff40;border-top-color:#fff;border-radius:50%;width:16px;height:16px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=960px){.wrap{max-width:calc(100% - 24px)}}.footer[data-v-08abe7d7]{color:#bdbdbd;border-top:3px solid var(--c-accent-line);background:#2a2a2a;margin-top:40px;font-size:13px}.footer__grid[data-v-08abe7d7]{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;padding:36px 0 28px;display:grid}.footer h4[data-v-08abe7d7]{color:#fff;margin:0 0 12px;font-size:14px;font-weight:700}.footer p[data-v-08abe7d7]{margin:0 0 6px;line-height:1.7}.footer ul[data-v-08abe7d7]{margin:0;padding:0;list-style:none}.footer li+li[data-v-08abe7d7]{margin-top:6px}.footer a[data-v-08abe7d7]{color:#bdbdbd}.footer a[data-v-08abe7d7]:hover{color:#fff}.footer__copy[data-v-08abe7d7]{color:#8a8a8a;border-top:1px solid #3d3d3d;padding:12px 0 16px;font-size:12px}.topbar[data-v-e43f7d24]{height:var(--topbar-h);background:var(--c-accent);color:#5a4c1c;font-size:12px}.topbar__inner[data-v-e43f7d24]{align-items:center;gap:24px;height:100%;display:flex}.header[data-v-e43f7d24]{z-index:50;height:var(--header-h);border-bottom:1px solid var(--c-line);background:#fff;position:sticky;top:0}.header__inner[data-v-e43f7d24]{align-items:center;height:100%;display:flex}.logo[data-v-e43f7d24]{color:inherit;align-items:center;gap:10px;margin-right:36px;text-decoration:none;display:flex}.logo[data-v-e43f7d24]:hover{text-decoration:none}.logo__img[data-v-e43f7d24]{border-radius:8px;width:40px;height:40px;display:block}.logo__text[data-v-e43f7d24]{flex-direction:column;line-height:1.2;display:flex}.logo__text strong[data-v-e43f7d24]{color:var(--c-brand-dark);font-size:16px}.logo__text small[data-v-e43f7d24]{color:var(--c-text-3);font-size:12px;font-weight:400}.nav[data-v-e43f7d24]{flex:1;align-items:stretch;height:100%;display:flex}.nav a[data-v-e43f7d24]{color:var(--c-text);border-bottom:2px solid #0000;align-items:center;padding:0 18px;font-size:15px;text-decoration:none;display:flex}.nav a[data-v-e43f7d24]:hover,.nav a.is-on[data-v-e43f7d24]{color:var(--c-brand);border-bottom-color:var(--c-brand)}.header__side[data-v-e43f7d24]{align-items:center;gap:16px;display:flex}.header__link[data-v-e43f7d24]{color:var(--c-text-2);font-size:13px}.hero[data-v-0ccaaf72]{border-bottom:1px solid var(--c-line);background:#fff;padding:40px 0}.hero__inner[data-v-0ccaaf72]{grid-template-columns:1fr 300px;align-items:center;gap:48px;display:grid}.hero__eyebrow[data-v-0ccaaf72]{color:var(--c-text-2);margin:0 0 8px;font-size:13px}.hero h1[data-v-0ccaaf72]{margin:0;font-size:28px;font-weight:700;line-height:1.35}.hero__lead[data-v-0ccaaf72]{color:var(--c-text-2);max-width:640px;margin:12px 0 0;font-size:14px}.hero__meta[data-v-0ccaaf72]{color:var(--c-text-2);margin:16px 0 0;padding:0;font-size:13px;list-style:none}.hero__meta li+li[data-v-0ccaaf72]{margin-top:2px}.hero__card[data-v-0ccaaf72]{border:1px solid var(--c-line);border-top:3px solid var(--c-accent-line);background:#fff;padding:22px 22px 20px}.hero__card-kicker[data-v-0ccaaf72]{color:var(--c-text-3);margin:0;font-size:12px}.hero__price[data-v-0ccaaf72]{align-items:baseline;gap:10px;margin-top:8px;display:flex}.hero__now[data-v-0ccaaf72]{font-size:32px}.hero__old[data-v-0ccaaf72]{color:var(--c-text-3);font-size:14px;text-decoration:line-through}.hero__note[data-v-0ccaaf72]{color:var(--c-text-2);margin:6px 0 16px;font-size:12px}.facts[data-v-0ccaaf72]{background:var(--c-card);border:1px solid var(--c-line);grid-template-columns:repeat(4,1fr);margin-top:20px;display:grid}.facts>div[data-v-0ccaaf72]{padding:16px 18px}.facts>div+div[data-v-0ccaaf72]{border-left:1px solid var(--c-line)}.facts b[data-v-0ccaaf72]{color:var(--c-brand-dark);margin-bottom:6px;display:block}.facts span[data-v-0ccaaf72]{color:var(--c-text-2);font-size:12px}.block[data-v-0ccaaf72]{margin-top:28px}.block__hd[data-v-0ccaaf72]{justify-content:space-between;align-items:baseline;margin-bottom:12px;display:flex}.block__hd h2[data-v-0ccaaf72]{color:var(--c-brand-dark);margin:0;font-size:18px}.cards[data-v-0ccaaf72]{grid-template-columns:1fr 1fr 1fr;gap:14px;display:grid}.card[data-v-0ccaaf72]{background:var(--c-card);border:1px solid var(--c-line);flex-direction:column;display:flex}.card[data-v-0ccaaf72]:hover{border-color:#ddd}.card__cover[data-v-0ccaaf72]{border-bottom:1px solid var(--c-line);background:#fafafa;height:210px;overflow:hidden}.card__cover img[data-v-0ccaaf72]{object-fit:cover;object-position:center top;width:100%;height:100%;display:block}.card__body[data-v-0ccaaf72]{flex-direction:column;flex:1;padding:14px 16px 16px;display:flex}.card__tag[data-v-0ccaaf72]{color:var(--c-text-3);margin:0;font-size:12px}.card h3[data-v-0ccaaf72]{margin:6px 0 8px;font-size:16px}.card p[data-v-0ccaaf72]{color:var(--c-text-2);flex:1;margin:0;font-size:13px}.card__foot[data-v-0ccaaf72]{align-items:center;gap:8px;margin-top:14px;display:flex}.card__old[data-v-0ccaaf72]{color:var(--c-text-3);flex:1;font-size:12px;text-decoration:line-through}.card--soon[data-v-0ccaaf72]{opacity:.92}.two[data-v-0ccaaf72]{grid-template-columns:1.15fr .85fr;gap:14px;display:grid}.two .panel p[data-v-0ccaaf72]{color:var(--c-text-2);margin:0 0 10px}.steps[data-v-0ccaaf72]{margin:0;padding:0;list-style:none}.steps li[data-v-0ccaaf72]{gap:12px;padding:10px 0;display:flex}.steps li+li[data-v-0ccaaf72]{border-top:1px dashed var(--c-line)}.steps em[data-v-0ccaaf72]{color:var(--c-brand);flex-shrink:0;width:28px;font-style:normal;font-weight:700}.steps p[data-v-0ccaaf72]{margin:4px 0 0;font-size:13px}.news[data-v-0ccaaf72]{margin:0;padding:0;list-style:none}.news li[data-v-0ccaaf72]{gap:16px;padding:8px 0;display:flex}.news li+li[data-v-0ccaaf72]{border-top:1px dashed var(--c-line)}.news time[data-v-0ccaaf72]{color:var(--c-text-3);flex-shrink:0;width:88px}.plain[data-v-0ccaaf72]{color:var(--c-text-2);margin:0 0 12px;padding-left:18px}.faq[data-v-0ccaaf72]{background:var(--c-card);border:1px solid var(--c-line);margin:0;padding:8px 20px 16px}.faq dt[data-v-0ccaaf72]{margin-top:14px;font-weight:700}.faq dd[data-v-0ccaaf72]{color:var(--c-text-2);margin:6px 0 0}.links[data-v-0ccaaf72]{margin-bottom:0}@media (width<=960px){.hero__inner[data-v-0ccaaf72],.two[data-v-0ccaaf72],.cards[data-v-0ccaaf72],.facts[data-v-0ccaaf72]{grid-template-columns:1fr}}.lead[data-v-7dc5e0c0]{color:var(--c-text-2);max-width:820px;margin:0 0 18px}.list[data-v-7dc5e0c0]{border-collapse:collapse;background:var(--c-card);border:1px solid var(--c-line);width:100%}.list th[data-v-7dc5e0c0],.list td[data-v-7dc5e0c0]{text-align:left;vertical-align:top;border-bottom:1px solid var(--c-line);padding:14px 16px;font-size:13px}.list th[data-v-7dc5e0c0]{color:var(--c-text-2);background:#fafafa;font-weight:400}.course-cell[data-v-7dc5e0c0]{align-items:flex-start;gap:12px;display:flex}.thumb[data-v-7dc5e0c0]{object-fit:cover;object-position:center top;background:#fafafa;flex-shrink:0;width:72px;height:96px}.list td p[data-v-7dc5e0c0]{color:var(--c-text-2);margin:6px 0 0;font-size:12px}.old[data-v-7dc5e0c0]{color:var(--c-text-3);font-size:12px;text-decoration:line-through}.list__act[data-v-7dc5e0c0]{white-space:nowrap;width:120px}.note[data-v-7dc5e0c0]{margin-top:20px}.note ol[data-v-7dc5e0c0]{color:var(--c-text-2);margin:0;padding-left:20px}.head[data-v-bdee7098]{background:var(--c-card);border:1px solid var(--c-line);grid-template-columns:320px 1fr;gap:18px;padding:18px;display:grid}.head__cover[data-v-bdee7098]{background:#fafafa;height:360px;overflow:hidden}.head__cover img[data-v-bdee7098]{object-fit:cover;object-position:center top;width:100%;height:100%;display:block}.head__info h1[data-v-bdee7098]{margin:0;font-size:22px}.sub[data-v-bdee7098]{color:var(--c-text-2);margin:6px 0 10px}.tags[data-v-bdee7098]{flex-wrap:wrap;gap:6px;margin-bottom:8px;display:flex}.tags span[data-v-bdee7098]{background:var(--c-accent);color:#5a4c1c;padding:1px 8px;font-size:12px}.buy[data-v-bdee7098]{border-top:1px dashed var(--c-line);justify-content:space-between;gap:16px;margin-top:8px;padding-top:12px;display:flex}.now[data-v-bdee7098]{font-size:28px}.old[data-v-bdee7098]{color:var(--c-text-3);margin-left:8px;text-decoration:line-through}.save[data-v-bdee7098]{color:var(--c-price);margin-left:8px;font-size:12px}.buy__tip[data-v-bdee7098]{color:var(--c-text-3);margin:4px 0 0;font-size:12px}.buy__btns[data-v-bdee7098]{flex-shrink:0;align-items:center;gap:8px;display:flex}.layout-2[data-v-bdee7098]{grid-template-columns:1fr 280px;align-items:start;gap:16px;margin-top:16px;display:grid}.panel[data-v-bdee7098]{margin-bottom:16px}.panel p[data-v-bdee7098]{color:var(--c-text-2);margin:0 0 10px}.split[data-v-bdee7098]{grid-template-columns:1fr 1fr;gap:20px;display:grid}.split h3[data-v-bdee7098],.stage h3[data-v-bdee7098]{margin:0 0 8px;font-size:14px}.split ul[data-v-bdee7098],.panel ul[data-v-bdee7098],.side ol[data-v-bdee7098]{color:var(--c-text-2);margin:0;padding-left:18px}.stage+.stage[data-v-bdee7098]{margin-top:22px}.stage table[data-v-bdee7098],.lessons[data-v-bdee7098]{border-collapse:collapse;width:100%;font-size:13px}.stage th[data-v-bdee7098],.stage td[data-v-bdee7098],.lessons th[data-v-bdee7098],.lessons td[data-v-bdee7098]{border:1px solid var(--c-line);text-align:left;vertical-align:top;padding:8px 10px}.stage th[data-v-bdee7098],.lessons th[data-v-bdee7098]{color:var(--c-text-2);background:#fafafa;font-weight:400}.link[data-v-bdee7098]{color:var(--c-link);cursor:pointer;background:0 0;border:0;padding:0}.link[data-v-bdee7098]:disabled{color:var(--c-text-3);cursor:not-allowed}.review[data-v-bdee7098]{border-bottom:1px dashed var(--c-line);margin:0 0 14px;padding:0 0 12px}.review[data-v-bdee7098]:last-child{border:0;margin-bottom:0;padding-bottom:0}.review p[data-v-bdee7098]{margin:0}.review cite[data-v-bdee7098]{color:var(--c-text-3);margin-top:6px;font-size:12px;font-style:normal;display:block}.faq[data-v-bdee7098]{margin:0}.faq dt[data-v-bdee7098]{margin-top:12px;font-weight:700}.faq dt[data-v-bdee7098]:first-child{margin-top:0}.faq dd[data-v-bdee7098]{color:var(--c-text-2);margin:6px 0 0}.side ol[data-v-bdee7098]{margin-bottom:16px}.side li+li[data-v-bdee7098]{margin-top:6px}.learn[data-v-f81d00f7]{grid-template-columns:1fr 300px;align-items:start;gap:16px;display:grid}.player[data-v-f81d00f7]{background:#111;position:relative}.player video[data-v-f81d00f7]{aspect-ratio:16/9;background:#111;width:100%;display:block}.paywall[data-v-f81d00f7]{color:#fff;text-align:center;background:#0a1018c7;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:20px;display:flex;position:absolute;inset:0}.paywall p[data-v-f81d00f7]{margin:0;font-size:20px;font-weight:700}.paywall span[data-v-f81d00f7]{color:#d5d5d5;margin-bottom:8px;font-size:13px}.now[data-v-f81d00f7]{background:var(--c-card);border:1px solid var(--c-line);border-top:0;padding:14px 16px}.now h1[data-v-f81d00f7]{margin:0;font-size:16px}.now p[data-v-f81d00f7]{color:var(--c-text-2);margin:6px 0 0;font-size:13px}.trial-bar[data-v-f81d00f7]{color:var(--c-warn);background:#fff8e8;border:1px solid #efd7a2;justify-content:space-between;align-items:center;gap:12px;margin-top:10px;padding:10px 12px;font-size:13px;display:flex}.catalog[data-v-f81d00f7]{background:var(--c-card);border:1px solid var(--c-line)}.catalog__hd[data-v-f81d00f7]{border-bottom:1px solid var(--c-line);padding:12px 14px;font-weight:700}.catalog__hd small[data-v-f81d00f7]{color:var(--c-text-3);margin-left:6px;font-weight:400}.catalog ul[data-v-f81d00f7]{max-height:640px;margin:0;padding:0;list-style:none;overflow:auto}.catalog li[data-v-f81d00f7]{cursor:pointer;border-top:1px solid var(--c-line);border-left:3px solid #0000;gap:10px;padding:10px 12px;display:flex}.catalog li[data-v-f81d00f7]:hover{background:#fafafa}.catalog li.is-on[data-v-f81d00f7]{border-left-color:var(--c-accent-line);background:#fffdf4}.catalog em[data-v-f81d00f7]{width:24px;color:var(--c-text-3);flex-shrink:0;font-style:normal}.catalog span[data-v-f81d00f7]{min-width:0;font-size:13px}.catalog small[data-v-f81d00f7]{color:var(--c-text-3);font-size:12px;display:block}.lead[data-v-b65aef4d]{color:var(--c-text-2);margin:0 0 16px}.cols[data-v-b65aef4d]{grid-template-columns:1fr 320px;align-items:start;gap:16px;display:grid}.panel[data-v-b65aef4d]{margin-bottom:16px}.goods[data-v-b65aef4d]{border-collapse:collapse;width:100%}.goods th[data-v-b65aef4d],.goods td[data-v-b65aef4d]{text-align:left;border-bottom:1px solid var(--c-line);padding:10px 8px;font-size:13px}.goods th[data-v-b65aef4d]{color:var(--c-text-3);font-weight:400}.goods__name[data-v-b65aef4d]{align-items:center;gap:10px;display:flex}.goods__thumb[data-v-b65aef4d]{object-fit:cover;object-position:center top;background:#fafafa;flex-shrink:0;width:54px;height:72px}.row[data-v-b65aef4d]{justify-content:space-between;gap:12px;padding:8px 0;font-size:13px;display:flex}.row--sum[data-v-b65aef4d]{border-top:1px solid var(--c-line);margin-top:6px;padding-top:12px;font-size:16px;font-weight:700}.agree[data-v-b65aef4d]{color:var(--c-text-2);margin:14px 0;font-size:12px;display:block}.agree input[data-v-b65aef4d]{margin-right:6px}.cols[data-v-7a10b223]{grid-template-columns:1fr 320px;align-items:start;gap:16px;display:grid}.method[data-v-7a10b223]{border:1px solid var(--c-line);cursor:pointer;align-items:center;gap:12px;margin-bottom:10px;padding:14px 12px;display:flex}.method.is-on[data-v-7a10b223]{border-color:var(--c-brand);background:#fffdf4}.method input[data-v-7a10b223]{margin:0}.icon[data-v-7a10b223]{color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;display:flex}.method span[data-v-7a10b223]{flex-direction:column;display:flex}.method small[data-v-7a10b223]{color:var(--c-text-3);font-size:12px}.hint[data-v-7a10b223]{color:var(--c-text-3);margin:8px 0 0;font-size:12px}.row[data-v-7a10b223]{justify-content:space-between;gap:12px;padding:8px 0;font-size:13px;display:flex}.row--sum[data-v-7a10b223]{border-top:1px solid var(--c-line);margin:8px 0 16px;padding-top:12px;font-size:16px;font-weight:700}.box[data-v-d5383978]{max-width:720px;margin:0 auto 40px}.state[data-v-d5383978]{margin:8px 0 0;font-size:22px;font-weight:700}.is-ok[data-v-d5383978]{color:var(--c-ok)}.is-fail[data-v-d5383978]{color:var(--c-price)}.amount[data-v-d5383978]{color:var(--c-price);margin:8px 0 0;font-size:28px;font-weight:700}.lead[data-v-d5383978]{color:var(--c-text-2);margin:8px 0 16px}.link[data-v-d5383978]{color:var(--c-link);cursor:pointer;background:0 0;border:0;margin-left:8px}.acts[data-v-d5383978]{gap:10px;margin-top:20px;display:flex}.lead[data-v-b73ecc3c]{color:var(--c-text-2);margin:0 0 16px}.grid[data-v-b73ecc3c]{grid-template-columns:1fr 1fr;align-items:start;gap:16px;display:grid}