.subject-landing_page__ehdiX{--section-gap:34px;--section-pad:28px;max-width:860px;margin:0 auto;padding:40px 24px 56px}.subject-landing_page__ehdiX[data-toc]>[data-subject-toc]{display:none}@media (min-width:1140px){.subject-landing_page__ehdiX[data-toc]{display:grid;grid-template-columns:200px minmax(0,1fr);grid-gap:0 44px;gap:0 44px;align-items:start;max-width:1152px}.subject-landing_page__ehdiX[data-toc]>[data-subject-toc]{display:block;grid-column:1;grid-row:1/span 99}.subject-landing_page__ehdiX[data-toc]>:not([data-subject-toc]){grid-column:2}}.subject-landing_group__q0x0I,.subject-landing_section__5y2bn,.subject-landing_stage__dpezI{scroll-margin-top:92px}@media (max-width:640px){.subject-landing_group__q0x0I,.subject-landing_section__5y2bn,.subject-landing_stage__dpezI{scroll-margin-top:76px}}.subject-landing_page__ehdiX[data-skin=embed]{padding:24px 16px 40px}.subject-landing_page__ehdiX[data-skin=app],.subject-landing_page__ehdiX[data-skin=embed]{max-width:none}.subject-landing_page__ehdiX[data-skin=app]{padding:32px 0 48px}.subject-landing_shell__vbezC{--subject-hero-max:860px;--subject-hero-pad:24px}.subject-landing_shell__vbezC[data-skin=app]{--subject-hero-max:none;--subject-hero-pad:32px}.subject-landing_shell__vbezC[data-skin=embed]{--subject-hero-max:none;--subject-hero-pad:16px}.subject-landing_hero-kicker__OaLF5{margin:0 0 14px;font-size:14px;letter-spacing:.04em;color:#77716a}.subject-landing_hero-title__ieJdr{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 20px;margin:0;font-family:var(--font-serif-full);font-size:76px;font-weight:800;line-height:1.08;letter-spacing:.02em;color:#1c1b19}.subject-landing_hero-title-en__qMsCB{font-family:var(--font-serif-full);font-size:13px;font-weight:500;letter-spacing:.32em;text-transform:uppercase;color:#77716a}.subject-landing_hero-title-en__qMsCB[data-long]{flex-basis:100%}.subject-landing_hero-quote__Irso_{margin:14px 0 0;font-family:"Kaiti SC",STKaiti,KaiTi,BiauKai,var(--font-serif-full);font-size:20px;line-height:1.7;letter-spacing:.06em;color:#3f3b36}.subject-landing_hero-quote__Irso_:lang(en){max-width:420px;text-wrap:balance;font-family:Georgia,Times New Roman,serif;font-size:19px;font-style:italic;line-height:1.6;letter-spacing:0}@media (max-width:859px){.subject-landing_shell__vbezC[data-skin=app]{--subject-hero-pad:0px}.subject-landing_hero-kicker__OaLF5{margin-bottom:8px;font-size:13px}.subject-landing_hero-title__ieJdr{font-size:48px;gap:4px 12px}.subject-landing_hero-title-en__qMsCB{flex-basis:100%;font-size:11px;letter-spacing:.26em}.subject-landing_hero-quote__Irso_{font-size:16px}}.subject-landing_inline-link__wK8U_{color:var(--color-primary);font-weight:600;text-decoration:none}.subject-landing_inline-link__wK8U_:hover{text-decoration:underline}.subject-landing_section__5y2bn{margin-top:var(--section-gap);padding-top:var(--section-pad);border-top:1px solid var(--color-border-light)}.subject-landing_page__ehdiX>.subject-landing_section__5y2bn:first-of-type{margin-top:0;padding-top:0;border-top:0}.subject-landing_section-title__FbVGf{margin:0 0 16px;font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--color-text-title)}.subject-landing_section-head__kWqJR{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 16px;margin-bottom:16px}.subject-landing_section-head__kWqJR .subject-landing_section-title__FbVGf{margin:0}.subject-landing_section-link__rvHF_{font-size:13px;color:var(--color-primary);text-decoration:none;white-space:nowrap}.subject-landing_section-link__rvHF_:hover{text-decoration:underline}.subject-landing_stage__dpezI+.subject-landing_stage__dpezI{margin-top:30px}.subject-landing_topic-themes__AKRTu{display:flex;flex-direction:column;gap:26px}.subject-landing_topic-cards__MIvhx{display:grid;grid-template-columns:repeat(auto-fill,minmax(224px,1fr));grid-gap:12px;gap:12px;margin:0;padding:0;list-style:none}.subject-landing_topic-card__KWx6p{--grade-accent:color-mix(in srgb,var(--subject-color) 78%,#101828);display:flex;flex-direction:column;height:100%;padding:16px 16px 15px;background:#fff;border:1px solid var(--color-border-light);border-radius:var(--radius-md);box-shadow:0 1px 2px rgba(16,24,40,.04);text-decoration:none;color:var(--color-text-title);transition:border-color .16s,box-shadow .16s}a.subject-landing_topic-card__KWx6p:hover{border-color:color-mix(in srgb,var(--grade-accent) 38%,var(--color-border-light));box-shadow:0 6px 18px rgba(16,24,40,.08)}a.subject-landing_topic-card__KWx6p:hover .subject-landing_term-go__Ubrau{color:var(--color-text-title);transform:translateX(2px)}.subject-landing_topic-card-name__Rm4WU{display:block;font-family:var(--font-serif);font-size:19px;font-weight:700;line-height:1.2;letter-spacing:.01em}.subject-landing_topic-card-name__Rm4WU:after{content:"";display:block;width:26px;height:2px;margin:12px 0;background:var(--grade-accent);transition:width .18s}a.subject-landing_topic-card__KWx6p:hover .subject-landing_topic-card-name__Rm4WU:after{width:42px}.subject-landing_topic-card-brief__lIQ2B{display:block;font-size:12.5px;line-height:1.6;color:var(--color-text-tertiary);text-wrap:pretty}.subject-landing_topic-span__vAnZa{display:flex;gap:2px;height:6px;margin-top:14px}.subject-landing_topic-span__vAnZa i{flex:1 1;border-radius:1px;background:#e9ecf0}.subject-landing_topic-span__vAnZa i[data-on]{background:#3f4855}.subject-landing_topic-span__vAnZa i[data-stage=junior]+i[data-stage=senior],.subject-landing_topic-span__vAnZa i[data-stage=primary]+i[data-stage=junior]{margin-left:4px}.subject-landing_topic-card-meta__64_d5{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:8px;font-size:12.5px;color:var(--color-text-tertiary);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.subject-landing_topic-card-facts__h4ag2{display:flex;flex-wrap:wrap;min-width:0}.subject-landing_topic-card-facts__h4ag2>span+span:before{content:"·";margin:0 .35em}.subject-landing_topic-card__KWx6p[data-off]{box-shadow:none}.subject-landing_topic-card__KWx6p[data-off] .subject-landing_topic-card-name__Rm4WU{color:var(--color-text-tertiary)}.subject-landing_topic-card__KWx6p[data-off] .subject-landing_topic-card-name__Rm4WU:after{background:var(--color-border-light)}.subject-landing_topic-card__KWx6p[data-off] .subject-landing_topic-card-meta__64_d5{margin-top:auto;padding-top:14px;justify-content:flex-end}.subject-landing_topic-card__KWx6p[data-linked] .subject-landing_topic-card-name__Rm4WU{color:var(--color-text-title);text-decoration:none}.subject-landing_topic-card__KWx6p[data-linked] .subject-landing_topic-card-name__Rm4WU:hover{color:var(--grade-accent)}.subject-landing_topic-links__n4Hd2{margin:auto 0 0;padding:12px 0 0;list-style:none}.subject-landing_topic-links__n4Hd2 li+li{border-top:1px solid var(--color-border-light)}.subject-landing_topic-links__n4Hd2 a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:7px 0;font-size:13.5px;line-height:1.45;color:var(--color-text-primary);text-decoration:none}.subject-landing_topic-links__n4Hd2 a:hover{color:var(--grade-accent)}.subject-landing_topic-links__n4Hd2 a:hover .subject-landing_term-go__Ubrau{color:var(--grade-accent);transform:translateX(2px)}.subject-landing_topic-wide__NMNxp{grid-column:1/-1;container:topic-wide/inline-size}.subject-landing_topic-card__KWx6p[data-wide]{display:grid;grid-template-columns:minmax(0,200px) minmax(0,1fr);grid-gap:16px 32px;gap:16px 32px}.subject-landing_topic-groups__zzLue,.subject-landing_topic-wide-head__Dl15P{display:flex;flex-direction:column}.subject-landing_topic-group__n8l4X{display:grid;grid-template-columns:64px minmax(0,1fr);grid-gap:6px 20px;gap:6px 20px;padding:12px 0;border-top:1px solid var(--color-border-light)}.subject-landing_topic-group__n8l4X:first-child{padding-top:0;border-top:0}.subject-landing_topic-group__n8l4X:last-child{padding-bottom:0}.subject-landing_topic-group-name__i46cq{margin:0;padding:5px 0;font-size:12px;line-height:20px;letter-spacing:.04em;color:var(--color-text-tertiary)}.subject-landing_topic-group-links__pbmFd{display:grid;grid-template-columns:repeat(auto-fill,minmax(max(76px,calc((100% - 4 * 12px) / 5)),1fr));grid-gap:0 12px;gap:0 12px;max-width:760px;margin:0;padding:0;list-style:none}.subject-landing_topic-group-links__pbmFd a{display:block;padding:5px 0;font-size:14px;line-height:20px;color:var(--color-text-primary);text-decoration:none}.subject-landing_topic-group-links__pbmFd a:hover{color:var(--grade-accent)}@container topic-wide (max-width: 720px){.subject-landing_topic-card__KWx6p[data-wide]{grid-template-columns:minmax(0,1fr)}}@container topic-wide (max-width: 440px){.subject-landing_topic-group__n8l4X{grid-template-columns:minmax(0,1fr);gap:2px}.subject-landing_topic-group-name__i46cq{padding:0}}.subject-landing_stage-title__KB3lq{margin:0 0 12px;font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--color-text-tertiary)}.subject-landing_stage-note__7Avgz{margin:-6px 0 12px;font-size:13px;line-height:1.7;color:var(--color-text-tertiary)}.subject-landing_groups__GNibw{display:flex;flex-direction:column;gap:10px}.subject-landing_group__q0x0I{padding:16px 18px;background:#fff;border:1px solid var(--color-border-light);border-radius:var(--radius-md)}.subject-landing_group-title__qtOIf{display:flex;align-items:baseline;gap:8px;margin:0;font-size:15px;font-weight:600;color:var(--color-text-title)}.subject-landing_group-count__cZnzJ{font-size:12.5px;font-weight:500;color:var(--color-text-tertiary);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.subject-landing_group-note__sxrPI{margin:5px 0 0;font-size:13px;line-height:1.65;color:var(--color-text-tertiary)}.subject-landing_grades__k2H08{display:grid;grid-template-columns:repeat(auto-fill,minmax(224px,1fr));grid-gap:12px;gap:12px;margin:18px 0 0;padding:0;list-style:none}.subject-landing_grade__dHXBf{--grade-accent:color-mix(in srgb,var(--subject-color) 78%,#101828);display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--color-border-light);border-radius:var(--radius-md);box-shadow:0 1px 2px rgba(16,24,40,.04);transition:border-color .16s,box-shadow .16s}.subject-landing_grade__dHXBf:hover{border-color:color-mix(in srgb,var(--grade-accent) 38%,var(--color-border-light));box-shadow:0 6px 18px rgba(16,24,40,.08)}.subject-landing_grade-name__rnEyQ{display:block;padding:16px 16px 0;font-family:var(--font-serif);font-size:19px;font-weight:700;line-height:1.2;letter-spacing:.01em;color:var(--color-text-title)}.subject-landing_grade-name__rnEyQ:after{content:"";display:block;width:26px;height:2px;margin:12px 0 14px;background:var(--grade-accent);transition:width .18s}.subject-landing_grade__dHXBf:hover .subject-landing_grade-name__rnEyQ:after{width:42px}.subject-landing_grade-terms__ROaY8{display:flex;flex-direction:column}.subject-landing_term-off__u4tSC,.subject-landing_term__Fkkzq{display:flex;flex-direction:column;gap:4px;padding:11px 16px 12px;border-top:1px solid var(--color-border-light);text-decoration:none;transition:background .15s,color .15s}.subject-landing_term__Fkkzq{color:var(--color-text-secondary)}.subject-landing_term__Fkkzq:hover{color:var(--grade-accent);background:color-mix(in srgb,var(--grade-accent) 5%,#fff)}.subject-landing_term-head__yP_73{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;line-height:1.3}.subject-landing_term-label__v6x7C{letter-spacing:.02em;font-weight:500}.subject-landing_term-badge__Rb8of{margin-left:auto;padding:1px 6px;border:1px solid transparent;border-radius:3px;font-size:11px;font-weight:500;line-height:1.5;letter-spacing:.04em;white-space:nowrap}.subject-landing_term-badge__Rb8of[data-badge="必修"]{color:var(--grade-accent);background:color-mix(in srgb,var(--grade-accent) 10%,#fff)}.subject-landing_term-badge__Rb8of[data-badge="选择性必修"]{color:var(--color-text-tertiary);border-color:color-mix(in srgb,var(--grade-accent) 26%,var(--color-border-light))}.subject-landing_term-go__Ubrau{color:#d0d5dd;transition:color .15s,transform .15s}.subject-landing_term__Fkkzq:hover .subject-landing_term-go__Ubrau{color:color-mix(in srgb,var(--grade-accent) 70%,#fff);transform:translateX(2px)}.subject-landing_term-note__5HuA2{font-size:12.5px;line-height:1.55;color:var(--color-text-tertiary);text-wrap:pretty}.subject-landing_term-off__u4tSC{color:var(--color-text-tertiary)}.subject-landing_columns__Zn075{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));grid-gap:10px;gap:10px;margin:0;padding:0;list-style:none}.subject-landing_column__PRWfs{display:flex;flex-direction:column;gap:5px;padding:14px 16px;background:#fff;border:1px solid var(--color-border-light);border-radius:var(--radius-md)}.subject-landing_column-name__4_VqO{font-size:14.5px;font-weight:600;color:var(--color-text-title)}.subject-landing_column-note__GyesT{font-size:13px;line-height:1.65;color:var(--color-text-tertiary)}.subject-landing_editorial__JA4gm{margin:18px 0 0;padding-left:14px;border-left:2px solid var(--color-border-light);font-size:13.5px;line-height:1.9;color:var(--color-text-secondary)}.subject-landing_exits__D90hI{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));grid-gap:10px;gap:10px}.subject-landing_exit__kl2yW{display:flex;align-items:center;gap:12px;padding:13px 15px;text-decoration:none;background:#fff;border:1px solid var(--color-border-light);border-radius:var(--radius-md);transition:border-color .15s,box-shadow .15s}.subject-landing_exit__kl2yW:hover{border-color:color-mix(in srgb,var(--subject-color) 45%,var(--color-border-light));box-shadow:0 4px 14px rgba(16,24,40,.07)}.subject-landing_exit-icon__NV7ka{flex-shrink:0;display:grid;place-items:center;width:38px;height:38px;color:var(--subject-color);background:var(--subject-tint);border-radius:var(--radius-md)}.subject-landing_exit-text__vD_on{display:flex;flex-direction:column;gap:2px;min-width:0}.subject-landing_exit-label__TpxMi{font-size:14.5px;font-weight:600;color:var(--color-text-title)}.subject-landing_exit-meta__SoxCl{font-size:12.5px;color:var(--color-text-tertiary)}.subject-landing_cta__AKb1E{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:40px;padding:26px 28px;background:#0f2e2b;border-radius:6px}.subject-landing_cta-title__aX6Bp{margin:0 0 6px;font-family:var(--font-serif);font-size:20px;font-weight:700;color:#fff}.subject-landing_cta-sub__umP_E{margin:0;font-size:14px;line-height:1.7;color:rgba(255,255,255,.72)}.subject-landing_cta-btn__smz3U{flex-shrink:0;display:inline-block;padding:11px 26px;font-size:14.5px;font-weight:600;color:#0f2e2b;background:#fff;border-radius:8px;text-decoration:none}@media (max-width:720px){.subject-landing_page__ehdiX{padding:24px 16px 44px}.subject-landing_shell__vbezC{--subject-hero-pad:16px}.subject-landing_columns__Zn075,.subject-landing_exits__D90hI{grid-template-columns:minmax(0,1fr)}.subject-landing_grades__k2H08{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}.subject-landing_grade-name__rnEyQ{padding:13px 13px 0;font-size:17px}.subject-landing_grade-name__rnEyQ:after{margin:10px 0 11px}.subject-landing_term-off__u4tSC,.subject-landing_term__Fkkzq{padding:10px 13px;font-size:13.5px}.subject-landing_term-go__Ubrau{display:none}.subject-landing_cta__AKb1E{flex-direction:column;align-items:flex-start;padding:22px}}@media (max-width:560px){.subject-landing_page__ehdiX{padding-top:18px}.subject-landing_topic-themes__AKRTu{gap:22px}.subject-landing_topic-cards__MIvhx{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.subject-landing_topic-card__KWx6p{padding:13px 12px 11px}.subject-landing_topic-card-name__Rm4WU{font-size:16.5px;line-height:1.25}.subject-landing_topic-card-name__Rm4WU:after{width:20px;margin:9px 0}.subject-landing_topic-card-brief__lIQ2B{font-size:12px;line-height:1.55;margin-bottom:10px}.subject-landing_topic-span__vAnZa{flex:none;gap:1.5px;height:5px;margin-top:auto}.subject-landing_topic-span__vAnZa i[data-stage=junior]+i[data-stage=senior],.subject-landing_topic-span__vAnZa i[data-stage=primary]+i[data-stage=junior]{margin-left:3px}.subject-landing_topic-card-meta__64_d5{margin-top:7px;font-size:11.5px;line-height:1.5}.subject-landing_topic-card-facts__h4ag2{flex-direction:column}.subject-landing_topic-card-facts__h4ag2>span+span:before{content:none}.subject-landing_topic-links__n4Hd2 a{padding:6px 0;font-size:13px}.subject-landing_stage-title__KB3lq{margin-bottom:10px}.subject-landing_hero-kicker__OaLF5{margin-bottom:6px;font-size:12.5px}.subject-landing_hero-title__ieJdr{font-size:40px}.subject-landing_hero-title-en__qMsCB{font-size:10.5px}.subject-landing_hero-quote__Irso_{margin-top:10px;font-size:15px}.subject-landing_hero-quote__Irso_:lang(en){max-width:none;font-size:15px}}